Is Your Windows 11 Lagging After the January 2026 Update? Here's How to Fix It!

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Ever felt that sinking feeling when your trusty Windows 11 PC, once a beacon of efficiency, suddenly starts crawling like a snail after a system update? You're not alone. The January 2026 update, specifically KB5077744, has been a bit of a mixed bag for many users. While it aimed to patch some critical vulnerabilities and introduce minor improvements, it seems to have inadvertently introduced a new set of headaches for others, ranging from noticeable performance lags to frustrating boot issues. But don't despair! We're here to walk you through some effective solutions to get your PC back to its snappy self.

The Culprit: Understanding KB5077744 and Its Impact

Before we dive into the fixes, let's briefly understand what we're dealing with. KB5077744 is an out-of-band security update released in January 2026 for Windows 11, version 25H2. Out-of-band updates are typically pushed out to address urgent security flaws that can't wait for the regular monthly patch Tuesday. While crucial for security, these rapid deployments can sometimes lead to unforeseen compatibility issues or conflicts with existing drivers and software, manifesting as performance degradation or even boot failures. Think of it like a quick, emergency repair on a complex machine – sometimes, a new part might not fit perfectly with the old ones right away.

Microsoft has acknowledged reports of issues following this update, and the community has been buzzing with discussions around performance drops and boot loops. The good news is, many of these problems are solvable with a bit of troubleshooting.

Step-by-Step Fixes to Revive Your Windows 11 PC

Let's get down to business. Here are several methods you can try to resolve the performance and boot issues caused by KB5077744.

Method 1: Ensure the Out-of-Band Fix is Properly Installed (or Reinstall It)

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Sometimes, the fix for the fix is simply to ensure it's installed correctly. Microsoft often releases subsequent minor updates to address issues introduced by larger patches. Check for these.

  1. Check for Updates: Go to Settings > Windows Update. Click Check for updates. If there are any pending updates, especially those related to KB5077744 or subsequent cumulative updates, install them immediately. These might contain critical bug fixes.
  2. Manual Installation (if necessary): If automatic updates aren't working, you can try downloading KB5077744 directly from the Microsoft Update Catalog and installing it manually. Search for KB5077744 on the catalog website and download the version appropriate for your system architecture.

Method 2: Perform a Clean Boot to Identify Conflicts

A clean boot starts Windows with a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update. These conflicts can cause performance issues or even prevent your PC from booting correctly.

  1. Open System Configuration: Press Win + R, type msconfig, and press Enter.
  2. Go to Services Tab: Check Hide all Microsoft services, then click Disable all.
  3. Go to Startup Tab: Click Open Task Manager. In Task Manager, disable all startup items one by one.
  4. Restart Your PC: Restart your computer. If the performance improves, you can then re-enable services and startup items one by one to pinpoint the culprit.

Method 3: Adjust System Settings for Performance Optimization

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Windows 11 has several settings that, while enhancing security or features, can sometimes impact performance. Disabling or adjusting some of these can free up resources.

  1. Disable Memory Integrity: This is a core isolation feature that protects against malicious code. While important, it can sometimes consume significant resources.
    • Go to Settings > Privacy & security > Windows Security > Device security.
    • Under Core isolation, click Core isolation details.
    • Toggle Memory integrity to Off. You might need to restart your PC.
  2. Manage Startup Apps: Too many applications launching with Windows can significantly slow down your boot time and overall performance.
    • Go to Settings > Apps > Startup.
    • Review the list and toggle off any applications you don't need to start automatically.
  3. Adjust Visual Effects: Windows 11's sleek interface comes with animations and visual effects that can be resource-intensive.
    • Search for Adjust the appearance and performance of Windows in the Start menu.
    • In the Performance Options dialog, select Adjust for best performance or Custom to selectively disable effects.

Method 4: Troubleshoot Boot Issues (If Your PC Won't Start)

If your PC is stuck in a boot loop or won't start after the update, these steps might help.

  1. Access Windows Recovery Environment (WinRE): If Windows fails to start three times in a row, it should automatically enter WinRE. If not, you might need to create a Windows 11 installation media to access it.
  2. Uninstall Updates: In WinRE, go to Troubleshoot > Advanced options > Uninstall Updates. Try uninstalling the latest quality update (KB5077744) or feature update.
  3. System Restore: If you have a system restore point created before the update, you can use it to revert your system to a previous working state. In WinRE, go to Troubleshoot > Advanced options > System Restore.
  4. Startup Repair: This option can fix common boot problems. In WinRE, go to Troubleshoot > Advanced options > Startup Repair.

Pro Tips: Unlock Hidden Productivity Hacks in Windows 11

While you're optimizing your system, why not discover some hidden gems that can make your Windows 11 experience even better? These aren't directly related to fixing the update issues, but they'll certainly make your PC feel faster and more efficient.

  • Snap Layouts: Don't just drag windows around! Hover over the maximize button to reveal various snap layouts, making multitasking a breeze. This is a game-changer for screen real estate management.
  • Virtual Desktops: Need to separate work from play? Create multiple virtual desktops (Win + Tab) to keep your applications organized and your workspace clutter-free. It's like having multiple monitors without the extra hardware.
  • Clipboard History: Stop copying and pasting one item at a time! Press Win + V to access your clipboard history, allowing you to paste multiple previously copied items. It's a massive time-saver.
  • Focus Sessions: Windows 11 has a built-in Focus Sessions feature (integrated with the Clock app) that helps you minimize distractions and concentrate on your tasks. Set a timer, and it will mute notifications and integrate with Spotify for focus music.
  • Dynamic Lock: Ever walk away from your PC and forget to lock it? Dynamic Lock can automatically lock your device when your paired phone is out of range. Go to Settings > Accounts > Sign-in options > Dynamic Lock.

Conclusion

Dealing with a sluggish or non-booting PC after an update can be incredibly frustrating. However, with a little patience and these troubleshooting steps, you can often resolve these issues yourself. Remember, technology can be finicky, but with the right approach, you can tame it. Here's to a faster, smoother Windows 11 experience! If these tips helped you, or if you found another solution, share your experience in the comments below! Your insights could help someone else facing the same predicament.

Author: Jack Email: Jack@cleardevicetips.com

References

[1] Microsoft Support. (2026, January 17). January 17, 2026—KB5077744 (OS Builds 26200.7627 and 26100.7627) Out-of-band. Retrieved from https://support.microsoft.com/en-us/topic/january-17-2026-kb5077744-os-builds-26200-7627-and-26100-7627-out-of-band-27015658-9686-4467-ab5f-d713b617e3e4 [2] Microsoft Learn. (2026, January 30). Problems with January 2026 updates to Windows. Retrieved from https://learn.microsoft.com/en-ca/answers/questions/5751253/problems-with-january-2026-updates-to-windows [3] PCMag. (2026, February 5). Stop Using Windows 11 Like a Beginner: 31 Hidden Tricks Microsoft Never Taught. Retrieved from https://www.pcmag.com/explainers/stop-using-windows-11-like-a-beginner-31-tricks-microsoft-never-taught [4] Tom's Guide. (2026, January 15). 5 hidden gems that finally convinced me to love Windows 11. Retrieved from https://www.tomsguide.com/computing/windows-operating-systems/5-hidden-windows-11-features-you-need-to-know-about

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