Zurück zur Übersicht

TECHFIXBK BLOG

Windows 11 KB5077181: Fixing Boot Loops and Update Errors

W

Windows 11 KB5077181: Fixing Boot Loops and Update Errors

TechFixBK
||25 min read

Having trouble with KB5077181 on Windows 11? Learn how to fix boot loops, installation errors like 0x800f0991, and Secure Boot certificate issues.

A technical guide to resolving February 2026 security update failures, including 0x800f0991 errors and Secure Boot conflicts.

Hook & Who This Is For (Intro)

Many users recently found their systems stuck in Endless Boot-Loops or facing persistent installation errors after attempting the February 10, 2026, cumulative update [13][15]. Instead of a routine security patch, some individuals are encountering a cycle where the computer restarts more than 15 times before failing to load the login screen [13]. If your Windows 11 device is refusing to boot or displaying 0x80070005, 0x800f0991, or 0x80073712 errors, you are likely affected by this specific update issue [1][6][15].

This article provides a technical breakdown of why the KB5077181 update is failing and how to restore system stability. It covers:

  • Identifying the specific error codes associated with the KB5077181 failure [1][3][15].
  • Step-by-step recovery methods, including the use of the Fix problems using Windows Update tool [2][10].
  • Manual workarounds for Secure Boot conflicts and registry errors [4][13].

Who This Is For

This guide is intended for administrators and home users running Windows 11, versions 24H2 or 25H2, who are experiencing system instability or update failures following the February 2026 patch cycle [13]. It specifically addresses hardware-specific issues, such as HDMI port failures or Secure Boot key deletions reported by the community [6][13].

Who Can Skip This

If your system has already successfully updated to OS Builds 26200.7840 or 26100.7840 without errors, or if you are running older versions of Windows not listed in the 2026 patch notes, this guide may not apply to you [7][11]. Users on the Windows 11 version 26H1 branch who received KB5077179 instead are also likely unaffected by these specific boot-loop reports [7].

TL;DR / What This Means for You

The February 2026 security update, identified as KB5077181, is a critical release designed to address both active security threats and long-term system stability [7][8]. While it provides essential patches, some users have reported technical hurdles during the installation process [10][15].

  • Critical Security Fixes: This update mitigates 58 vulnerabilities, including 6 zero-day exploits that are currently being used in active attacks [7][15]. These flaws impact the Windows Shell, MSHTML Framework, and Microsoft Word [4][7].
  • Secure Boot Refresh: Microsoft has begun a phased rollout of new Secure Boot certificates to replace the original 2011 versions, which are set to expire in late June 2026 [1][7]. Failure to update these may eventually lead to a "degraded security state" where your PC cannot receive new boot-level protections [1].
  • Known Installation Errors: Industry reports and user data indicate that some systems may encounter error codes 0x800f0991 or 0x800f8011, causing the update to fail or repeatedly attempt installation [10][15].
  • Recommended Action: Users should attempt to install the update through the standard Windows Update menu [1][2]. If the installation fails, utilizing the Fix problems using Windows Update tool within the System Recovery settings has been identified as a potential solution that preserves files and applications [10].
  • Hardware Compatibility: A small percentage of devices may require a separate firmware update from the device manufacturer (OEM) before the new Secure Boot certificates can be successfully applied [2].
  • Risk Note: While this update significantly improves security, a phased rollout means your specific device may not receive the new Secure Boot certificates immediately; Microsoft is prioritizing systems that provide "sufficient successful update signals" to ensure stability [7].

Background / Basics

Windows updates are regular software packages released by Microsoft to keep systems secure and functional. KB5077181 is a cumulative update released on February 10, 2026 [8][18]. It was designed to address security vulnerabilities within the Windows Kernel and improve the overall stability of the operating system [37][54].

This specific update targets multiple versions of Windows 11, primarily versions 26H1, 25H2, and 24H2 [8][18]. Once the update is successfully applied, it advances the system to OS Build 26200.7840 or 26100.7840 [8][6]. These builds are intended to refine core system services and the Windows Update Stack [37].

A significant component of this update involves system security architecture. Reports indicate that Microsoft included new certificates for Secure Boot to replace aging digital keys [18]. Secure Boot is a critical security standard that ensures a device boots using only software that is trusted by the hardware manufacturer [18][54].

Feature Details
Update ID KB5077181 [8]
Release Date February 10, 2026 [8][18]
Target OS Windows 11 [8][37]
Target Builds 26200.7840 / 26100.7840 [8][6]

While most cumulative updates install without incident, they modify sensitive areas of the operating system, such as the registry and system boot files [18][37]. Because these updates interact deeply with hardware firmware, they can potentially encounter compatibility issues with specific BIOS configurations or third-party security software [7][13].

Problem Explanation (What's Going On?)

The KB5077181 security update, released in February 2026, has encountered significant installation hurdles for many Windows 11 users [1][6][7]. While the patch is intended to address security vulnerabilities for builds 26200.7840 and 26100.7840, the installation process frequently fails across diverse hardware configurations, including desktop PCs and various HP Elitebook models [1][5][14].

Users have documented a wide array of specific error codes that prevent the update from completing [3][7][10]. The most frequently reported technical identifiers include:

Error Code Potential Meaning
0x800f0991 Often indicates a failed patch where old files remain in charge [2][3].
0x800f0983 A common initial failure code during the installation attempt [3][7].
0x80073712 Suggests that some update files are missing or have corruption issues [7].
0x80070005 "Access is denied," often caused by registry permission conflicts or antivirus interference [10][15].

A particularly disruptive symptom of this update is the "phantom installation" loop [2][7][13]. In these instances, the Windows Update history may incorrectly report that KB5077181 was "successfully installed" [2][13]. However, the system immediately prompts for the same update again, leading to a cycle of repeated downloads and failures [2][7].

Technical analysis from community members suggests this loop occurs because the system registers the update as successful despite failing to actually replace the necessary system files [3][4]. This inconsistency leads to a state where the OS believes it is updated, but the underlying security components remain at previous versions [3][4].

Beyond the installation failures, the update has been linked to functional regressions in hardware. Some users report that the update causes HDMI ports to fail, requiring them to attempt to hide the update or roll back their system [12]. This presents a difficult choice for users: maintain system functionality or risk a degraded security state by leaving the system unpatched [9][11].

The practical impact of these issues is substantial. Many users report spending several hours attempting to resolve the errors through traditional tools like SFC or DISM with little success [7][13][14]. If the update remains uninstalled, devices may eventually lose the ability to receive future boot-level protections, increasing their exposure to emerging vulnerabilities [9][11].

Root Causes / Analysis (Why Is This Happening?)

The issues surrounding the KB5077181 update appear to stem from a combination of software conflicts and internal database inconsistencies [1][7]. Users have reported various error codes, including 0x800f0991, 0x800f0983, and 0x80070005, each pointing to different underlying failures [6][12].

Confirmed Factors

Based on technical logs and moderator feedback, several specific causes have been identified:

  • Security Software Interference: The error code 0x80070005 signifies "Access is denied" [7][12]. This occurs when the update process cannot write to specific registry keys. In several verified cases, Bitdefender was found to block these operations, preventing the installation from completing [12].
  • Build Version Mismatches: The KB5077181 update is specifically intended for Windows 11 Builds 26200.7840 and 26100.7840 [1][8]. Reports indicate that some systems running slightly older builds, such as 26200.7705, are incorrectly being offered the update, leading to installation failures [8].
  • Corrupt Update Files: Error code 0x80073712 indicates that required update files are missing or have become corrupted during the download process [4]. While tools like DISM and sfc /scannow can sometimes repair these files, they do not always resolve the underlying update loop [4][11].

Hypotheses and Reported Issues

While some causes are confirmed, other behaviors observed by technical experts and users remain under investigation:

  • Inconsistent Timestamps: Some analysts suggest that inconsistent timestamps on local PCs may cause Windows to believe it already possesses newer file versions than those in the patch [1][5]. This can lead to a "false success" where the Update History marks the patch as installed, but the system files remain unpatched, causing the update to repeatedly re-trigger [5][6].
  • Registry and Database Conflicts: There is speculation that residual registry items, specifically the RebootPending key in the Component Based Servicing hive, may prevent the patch from initializing correctly [5]. These "ghost" settings can trick the Windows Update service into a state of permanent failure [11].
  • Hardware Interface Regression: Unverified reports suggest that KB5077181 may cause signal failures for HDMI ports on certain laptop models [13][15]. This appears to be a driver or handshake issue introduced by the update, though a definitive root cause for this hardware specific failure has not yet been officially documented [15].
  • Legacy Patch Conflict: It is hypothesized that conflicts with the previously replaced KB5074109 patch may hinder the installation of its successor, KB5077181, particularly if the former failed to uninstall cleanly [14].

Warning: Manually deleting update folders or modifying the registry can lead to system instability if not performed correctly [1][5]. Always ensure a full system backup is available before attempting advanced troubleshooting [8].

Error Code Likely Meaning Potential Cause
0x80070005 Access Denied Third-party Antivirus (e.g., Bitdefender) [7]
0x80073712 File Missing/Corrupt Interrupted Download or Disk Errors [4]
0x800f0991 Installation Failure Registry Inconsistency / "False Success" [5][6]
0x800f0922 Generic Failure Network issues or blocked update components [8]

Evidence & Reality Check

Official documentation and community reports confirm that the KB5077181 update, released on February 10, 2026, is a critical component of a global Secure Boot certificate refresh [1][8]. This update specifically targets Windows 11 systems running OS Builds 26200.7840 and 26100.7840 [8][11].

While Microsoft indicates that these updates are intended to install automatically for most users, technical data from support forums shows a significant number of installation hurdles [1][6]. Users have documented specific error codes that prevent the update from completing, often resulting in repeated installation attempts or system instability [6][7].

Error Code Context / Observation Source
0x800f0991 Most common error; often occurs after a "successful" status followed by a re-prompt. [6]
0x800f8011 Reported during failed second attempts at installation. [6]
0x800f0983 Initial error observed during regular update attempts. [6]
0x80070005 Linked to access or permission issues during the update process. [13]

Industry collaboration highlights the scale of this deployment. Major manufacturers, including Dell, HP, and Lenovo, have confirmed their involvement in preparing firmware to support these new certificates [6][14]. According to Vali Ali, HP Fellow and Chief Technologist:

"HP is working closely with Microsoft to ensure firmware updates are available so that all supported HP PCs running Windows 11 can adopt the new Secure Boot certificates before legacy certificates expire" [6][14].

Reports from the field suggest that while the update installs without issue on many laptops, desktop configurations and specific HP Elitebook models have encountered persistent failures [6]. Some users have successfully bypassed these errors by using the Fix problems using Windows Update feature found in the System Recovery settings, which reportedly preserves files and applications while refreshing the update components [6].

Evidence suggests that if these certificates are not updated before the 2011-era credentials expire in late June 2026, devices may enter a degraded security state [8][14]. While the PC is expected to continue functioning, its ability to receive future boot-level protections could be significantly limited [8][14].

Self-Check / Diagnosis

Identifying whether your system is encountering issues with KB5077181 requires verifying your current Windows build and reviewing your update history for specific failure indicators. This update, released in February 2026, specifically targets the Secure Boot root of trust and may behave differently depending on your hardware configuration [1][5][15].

Follow these steps to diagnose the status of the update on your device:

1. Verify Your OS Build Version

The KB5077181 security update is designed for specific Windows 11 builds. It is generally intended for systems running versions 26200.7840 or 26100.7840 [8][11][15].

To check your build, press the Windows Key + R, type winver, and press Enter. If your build number is significantly different, such as 26200.7705, the update may not be applicable to your system, though some users report it still appearing in their update queue [11].

2. Review Windows Update History

Many users report that the update appears to install successfully but then reappears as a pending update shortly after [4][10]. Open Settings > Windows Update > Update History to check for the following:

  • Duplicate Entries: Look for KB5077181 listed multiple times with conflicting statuses, such as "Successfully installed" followed by "Failed to install" [4][7].
  • Installation Loops: Note if the system repeatedly attempts to download and apply the same patch after a restart [4][10].

3. Identify Specific Error Codes

If the update fails, Windows typically generates an error code. Users across various platforms have documented several recurring codes associated with this specific February 2026 patch [6][12][14].

Error Code Potential Meaning
0x800f0991 Often indicates a state where the system incorrectly believes the patch is already installed [4][6][10].
0x80070005 Typically signals "Access Denied," potentially caused by third-party antivirus interference [12][13][14].
0x80073712 Suggests that some required update files are missing or corrupted [9].
0x800f0922 May relate to Secure Boot or partition issues preventing the update from completing [11].

4. Check Firmware and OEM Compatibility

Because this update refreshes Secure Boot certificates, certain devices require the latest firmware (BIOS) from the manufacturer before the system can successfully apply the update [1].

Visit your device manufacturer’s (OEM) support page to ensure your firmware is up to date. On some specialized or older systems, the update may fail to apply via the standard Windows Update process until the underlying hardware trust foundation is updated through a separate firmware patch [1][5].

5. Monitor for "False Completion"

A unique symptom of this update is the "False Completion" bug. In this scenario, Windows Update may report that the installation is "Completed" without demanding a system restart [6][10].

However, upon checking for updates again, the same KB5077181 patch may be offered once more, often resulting in a subsequent 0x800f0991 error [6]. If your system claims the update is finished but continues to prompt you for the same installation, your system is likely affected by the known registration issues [6][10].

Solutions / What to Do

If you are experiencing installation failures or boot issues with KB5077181, several verified methods have been identified to resolve these errors. These steps range from basic system maintenance to advanced recovery tools.

Initial Troubleshooting Steps

Before attempting deep system modifications, start with these common fixes for error codes 0x80070005 (Access Denied) and 0x80073712 (Missing Files) [10][14]:

  • Uninstall Third-Party Antivirus: Security software, specifically Bitdefender, has been reported to block registry writes during this update [8][10]. Temporarily uninstalling the software and restarting the PC may allow the update to complete [10].
  • Run Windows Update Troubleshooter: Navigate to Settings > System > Troubleshoot > Other troubleshooters and run the tool for Windows Update to identify automated fixes [5][14].
  • Clear the Update Cache: Some users found success by deleting the contents of the C:\Windows\SoftwareDistribution\Download folder to force a fresh download of the update files [14].

Advanced Repair Methods

If the standard troubleshooting fails, more aggressive repairs may be necessary to address corrupted system components or "false" successful installation flags [1].

The Windows Update Repair Tool

The most effective solution reported by users for error 0x800f0991 is the Fix problems using Windows Update feature [1][4][9]. This tool performs an in-place repair by reinstalling the current OS version.

  1. Open Settings > System > Recovery.
  2. Locate Fix problems using Windows Update and click Reinstall now [1][4].
  3. Ensure the option to preserve apps and files is selected [2][4].

Note: This process is intensive and can take between one and five hours depending on hardware speed [1][4]. Users report that it successfully resolves persistent update loops without data loss [2][4].

Manual Update Removal

In cases where the system incorrectly believes the update is already installed, you may need to manually clear the "successful" flag [1].

  • Command Line: Open PowerShell or Command Prompt as an administrator and run wusa /uninstall /kb:5077181 [1][7].
  • Registry Modification: Some experts suggest that deleting the RebootPending key in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing can clear stuck update states [1].

Firmware and Secure Boot Alignment

Because KB5077181 is tied to Secure Boot certificate updates, hardware-level compatibility is a factor [12][13].

Action Purpose Source
Check OEM Support Download the latest BIOS/Firmware for your specific laptop or motherboard model. [12][13]
Verify Build Version Ensure your build is 26200.7840 or 26100.7840; older builds may not be eligible. [4][7]
Check Secure Boot Ensure Secure Boot is enabled in BIOS to allow the new certificates to take effect. [12][15]

Risks & Limitations

While the Fix problems using Windows Update tool is designed to preserve data, it is not a risk-free procedure [1][4]. System interruptions during an in-place reinstall can potentially lead to OS corruption. It is highly recommended to perform a full system backup before utilizing the recovery tool or modifying the Windows Registry [9]. If the update continues to fail after these steps, it may be necessary to hide the update using the Show or hide updates troubleshooter until a revised patch is released by Microsoft [5].

Risks, Limits, and When to Stop

While troubleshooting the Windows 11 KB5077181 update, users must balance the need for security with the risks of advanced system repairs. Attempting to force an update that repeatedly fails with error codes like 0x800f0991 or 0x800f0983 can lead to extended downtime or system instability [9][10].

Potential Risks of Manual Intervention

Advanced recovery methods, such as the Fix problems using Windows Update feature, are designed to preserve files and applications [1][6][8]. However, these processes are not without risk.

  • Extended Downtime: Some users report that the "reinstall now" recovery process can take anywhere from 2 hours to 5 hours to complete, depending on hardware [1][8].
  • Incomplete Repairs: While the tool reinstalls the OS version to fix component corruption, it may still fail on certain hardware configurations [4][7].
  • Registry and Folder Corruption: Manually deleting update folders or modifying registry keys (such as RebootPending) is risky and may prevent the system from recognizing future patches [4][15].
  • Degraded Security State: If a device fails to receive the new Secure Boot certificates delivered via this update, it will continue to function but will enter a degraded security state [5]. This limits the system's ability to receive future boot-level protections [5].

When to Stop and Seek Professional Assistance

It is important to recognize when standard troubleshooting is no longer effective. If you encounter the following scenarios, it may be safer to pause and consult a specialist:

Scenario Indicator Recommended Action
Persistent Error Loops Error 0x800f0991 reappears after multiple DISM or SFC attempts [7][10]. Stop manual retries to avoid SSD wear and registry bloat.
False Completion Windows Update History shows "Successfully Installed," but the system build remains on an older version (e.g., 26200.7705) [7][8]. Avoid further manual installs; the update database may be desynchronized [4][10].
Permission Blocks Error 0x80070005 persists even after running as administrator [11]. Check for Group Policy conflicts or deep-seated permissions issues [11].
Firmware Requirements The system requires an OEM firmware update before the Secure Boot certificates can be applied [14]. Visit the manufacturer's support page for BIOS/UEFI updates [1][14].

Warning: Before using any "Reinstall Now" or "Recovery" features, ensure you have a verified backup of all critical data [8]. While these tools are designed to keep apps and files intact, hardware failure or power loss during the 5-hour process can result in data loss [1][8].

If the Windows Update Troubleshooter and basic command-line repairs (SFC/DISM) fail to resolve the issue, further DIY attempts may cause more harm than good [11]. Analysts suggest that if the system is stable despite the update failure, it may be better to hide the update temporarily using the "Show or hide updates" tool until a official server-side fix is released [11].

FAQ

What are the most common error codes for update KB5077181?

Users attempting to install the February 2026 security update have reported several different failure codes. The most frequent errors include 0x800f0991, 0x800f0983, and 0x80073712 [1][9][14]. Other documented issues involve codes 0x80070005, 0x800f8011, and 0x800f0922, often occurring after the system attempts to re-download missing or corrupted files [2][3][14].

Will I lose my programs and files if I use the recovery fix?

The Fix problems using Windows Update feature, located under Settings > System > Recovery, is designed to reinstall the current version of the operating system while preserving all files, folders, and installed applications [1][4]. User reports indicate that data and settings remained intact after the process [1]. However, as with any major system operation, maintaining a full backup is generally considered a necessary precaution [4].

What should I do if I receive error code 0x80070005?

Error code 0x80070005 typically indicates "Access is denied," which occurs when the update cannot write to specific registry keys [3][12]. In documented cases, third-party security software like Bitdefender Free was found to block these permissions [3]. Community moderators suggest temporarily uninstalling such antivirus programs, restarting the computer, and then attempting the update again [3][12].

How long does the recovery-based installation take?

If standard troubleshooting tools like DISM or SFC fail, the recovery-based reinstallation is a known alternative [4][9]. Based on user experiences, this process is not instantaneous and typically requires between 2 and 5 hours to reach completion [1][4]. The exact duration may vary depending on hardware specifications, such as processor speed and total RAM [1].

Which Windows 11 versions are specifically affected by this update?

Update KB5077181 is specifically targeted at Windows 11 systems running OS Builds 26200.7840 and 26100.7840 [4][8]. This includes versions such as 25H2 and 24H2 [1][8]. If your system build does not match these specific identifiers, you may not be eligible for this update, or its appearance in your update queue could be an error [4].

Can I fix this using the Windows Update Troubleshooter?

While the Windows Update Troubleshooter is a standard first step, many users have reported that it fails to resolve the specific issues associated with KB5077181 [9]. Similarly, manual commands like sfc /scannow or dism /online /cleanup-image /restorehealth may return "success" messages without actually allowing the update to install [9][14]. In these instances, the integrated recovery path is often the only reported successful solution [1][4].

Summary / Key Takeaways

The KB5077181 update represents a significant security release for Windows 11 users, addressing critical vulnerabilities while introducing specific installation challenges for some systems [2][8].

  • The KB5077181 update (OS Builds 26200.7840 and 26100.7840) was released on February 10, 2026, targeting Windows 11 versions 24H2, 25H2, and 26H1 [4][8].
  • Installation failures, such as error codes 0x800f0991 and 0x80070005, are frequently reported and may be caused by registry access conflicts or interference from third-party antivirus software [2][15].
  • The integrated Fix problems using Windows Update tool in the System Recovery menu has been identified as a reliable method to resolve update loops while preserving personal files and applications [2].
  • This update cycle is part of a broader industry-wide transition to refresh Secure Boot certificates, ensuring hardware-level trust remains intact before legacy certificates expire [1][13].
  • Data from community testing indicates that successful installation typically resolves performance issues and instability observed in previous builds [2][15].

If you’re unsure, it’s usually cheaper to ask someone once than to fix a mistake later.

Quellen

[1] Refreshing the root of trust: industry collaboration on Secure Boot certifica...

[2] Announcing Windows 11 Insider Preview Build 26220.7755 (Beta Channel)

[3] Announcing Windows 11 Insider Preview Build 26300.7760 (Dev Channel)

[4] Announcing Windows 11 Insider Preview Build 28020.1611 (Canary Channel)

[5] Enhanced developer tools on the Microsoft Store

[6] 2026-02 Security Update "(KB5077181)" (26200.7840) will not install...

[7] KB 5077181 won't install - Microsoft Q&A

[8] February 10, 2026—KB5077181 (OS Builds 26200.7840 and 26100.7840) - Mi...

[9] KB5074109 & KB5077181 | Microsoft Community Hub

[10] KB5077181 update causes HDMI port to fail | Microsoft Community Hub

[11] February's Windows 11 update is causing startup problems for users

[12] Windows 11 KB5077181 & KB5075941 cumulative updates released

[13] Microsoft releases exclusive Windows 11 update for certain PCs only

[14] Apple fixes zero-day flaw used in 'extremely sophisticated' attacks

[15] Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws

[16] Critical BeyondTrust RCE flaw now exploited in attacks, patch now

[17] Odido data breach exposes personal info of 6.2 million customers

[18] Endlos-Neustarts: Neues Windows 11 Update legt Rechner lahm

[19] ASRock claims its new BIOS for AM5 motherboards solves the

[20] Satya Nadella Hit With Racist Remarks Over Super Bowl Tweet: "Your Peopl...

[21] Satya Nadella faces racist remarks after congratulatory post on Super Bowl win

[22] A former Microsoft exec shares what Satya Nadella taught him about leadership...

[23] Less than a year after CEO Satya Nadella said 30% of Microsoft's code is...

[24] Why Satya Nadella is facing a racist backlash over Super Bowl tweet

[25] Satya Nadella Faces Racist Backlash Over 'Hometown' Superbowl Tweet...

[26] ‘Your days of whining are over’: Fomer Microsoft employee reveals Satya Nadel...

[27] Microsoft’s AI future faces quality questions: Satya Nadella hires Goog...

[28] Satya Nadella appoints ‘engineering quality czar’, sends memo to Microsoft em...

[29] Fix Windows 11 KB5077181 Install Error

[30] Windows 11 KB5077181 boot loop fix: uninstall guide | tbreak

[31] Windows 11 KB5077181 boot loop issues on 24H2 systems fix for login failures ...

[32] Windows 11 February Update Triggers Startup Issues for Users

[33] Windows 11 KB5077181 25H2 out with new features, direct download links for of...

[34] Windows 11 KB5077181 Update: New Features, Download, Issues, and Installation...

[35] Windows Secure Boot 2026: Microsoft issues final warning over expiring certif...

[36] Windows 11 February 2026 Patch: KB5077181 and KB5075941 fix zero-days, shutdo...

[37] Windows 11 KB5077181 Update Crisis: Boot Loops, Stability Issues & How to...

[38] Windows 11 Cumulative Updates KB5077181 & KB5075941 Released

[39] KB5074105 - Details, Issues, & Feedback - NinjaOne

[40] Microsoft Update Catalog

[41] Microsoft releases Windows 11 KB5077181 with new features and critical fixes

[42] Windows UEFI CA 2023: Microsoft's Secure Boot Certificate Refresh Explained

[43] KB5075906 - Details, Issues, & Feedback - NinjaOne

[44] Microsoft released KB5077180, KB5077374, KB5076124 Windows 11 setup & rec...

[45] KB5075899 - Details, Issues, & Feedback - NinjaOne

[46] Windows 11 Update KB5077181 Security and AI Features for 24H2 and 25H2 Versio...

[47] Windows 11 24H2/25H2: Update KB5077181 verursacht Boot-Schleife

[48] CCM

[49] Windows 11 Update KB5077181 verursacht Startprobleme: Das können Sie tun

[50] Windows 11 et KB5077181, Des défaillances au démarrage apparaissent - GinjFo

[51] Snapdragon X2 Elite’s gaming performance shows a massive leap

[52] February’s Patch Tuesday release fixes 59 flaws, including 6 being exploited

[53] KB5077800 - Details, Issues, & Feedback - NinjaOne

[54] Windows 11 KB5077181 Update Causes Boot Loops, Network Failures - Microsoft I...

[55] Windows 11 update KB5077181 is causing critical boot loops for some users

[56] KB5074109 - Details, Issues, & Feedback - NinjaOne

[57] Microsoft Update Catalog

[58] How to check if Windows 11 has applied the new Secure Boot 2023 certificates ...

[59] How to Manage Windows Update Delivery Optimization: Best Practices for Bandwi...

[60] How to Uninstall Windows Update (Windows 11 KB5077181)

[61] This free Windows 11 debloating script makes every PC better

[62] XFN 1.1 profile

[63] fonts.googleapis.com

[64] Kansas City Unifies IT and Gets Super Upgrade with NinjaOne

[65] NinjaOne | LinkedIn

[66] NinjaOne

[67] BleepingComputer (@[email protected]) - Infosec Exchange

Relevant Services

More from the Blog

Brauchen Sie Hilfe?

Wir reparieren Ihren PC oder Laptop schnell und zuverlässig.

Jetzt Reparatur anfragen