The Windows 11 KB5120998 Update Breaks Mouse Cursors, leaving thousands of users frustrated in late August 2026. What was meant to be a helpful optional upgrade has quickly become a massive headache for PC users globally.
This optional patch initially promised improvements to the Taskbar, Start Menu, and Windows Search. Unfortunately, it introduced severe visual glitches that severely disrupt daily workflows and user experience.
If you recently updated your system and noticed erratic pointer behavior, you are not alone. Microsoft has officially acknowledged these widespread Windows 11 optional update bugs, and a temporary rollback is currently the best solution.
How the Windows 11 KB5120998 Update Breaks Mouse Cursors
The primary issue reported by users involves bizarre and unpredictable pointer scaling. After installing the patch, users report their pointer completely disappearing from the screen.
In other instances, the cursor becomes abnormally large or shrinks to a microscopic dot, making navigation incredibly uncomfortable. Furthermore, your custom mouse cursor personalization settings are completely ignored.
Even if you navigate to your device settings and manually reapply your preferred colors or sizes, the operating system aggressively reverts them back to a broken default state on reboot.
“Microsoft has confirmed that personalization settings are being reverted following the installation of updates released on August 27, 2026.”
It is now an undeniable fact that the Windows 11 KB5120998 Update Breaks Mouse Cursors across multiple hardware configurations, forcing users to seek immediate workarounds.
| Reported Bug | User Experience Impact | System Status |
|---|---|---|
| Missing Cursor | Unable to navigate the UI visually. | Acknowledged by Microsoft |
| Erratic Sizing | Cursor becomes giant or microscopic. | Acknowledged by Microsoft |
| Settings Reversion | Custom colors and themes are deleted. | Acknowledged by Microsoft |
Beyond the Pointer: The Windows 11 Black Screen Wallpaper Bug
While the fact that the Windows 11 KB5120998 Update Breaks Mouse Cursors is frustrating, it is not the only problem. Users have discovered a persistent visual bug affecting their desktop backgrounds.
Whenever you attempt to change your desktop background and restart your PC, you are greeted by a Windows 11 black screen wallpaper. The system simply fails to load the selected image file.
No matter how many times you reapply your desired image through personalization settings, the black screen remains locked in place until the problematic patch is entirely removed from your system.
The Ultimate Fix When Windows 11 KB5120998 Update Breaks Mouse Cursors
Because the upcoming Microsoft release notes fix is still pending deployment, the only reliable way to restore your system is to perform a KB5120998 uninstall fix immediately.
Uninstalling this specific optional update instantly restores your custom pointer settings and brings your desktop wallpaper back to normal. The process is safe, fast, and does not delete your personal files.
“Removing the problematic August 2026 optional update instantly resolves both the erratic pointer scaling and the persistent black desktop background.”
If you need further official guidance on managing your system’s update history, you can always visit Microsoft Support directly.
Step-by-Step KB5120998 Uninstall Fix
Knowing that the Windows 11 KB5120998 Update Breaks Mouse Cursors means you must take action through the Windows Settings menu. Follow these specific steps to safely roll back your operating system.
| Step | Action Required |
|---|---|
| Step 1 | Open the Start Menu and click on the ‘Settings’ gear icon. |
| Step 2 | Navigate to ‘Windows Update’ on the left-hand sidebar menu. |
| Step 3 | Click on ‘Update history’, then scroll down to ‘Uninstall updates’. |
| Step 4 | Locate KB5120998 in the list, click ‘Uninstall’, and restart your PC. |
Once your computer reboots, pause your updates for at least one week to ensure this buggy version does not automatically install itself again overnight.
Frequently Asked Questions
Why did my pointer disappear recently?
It is highly likely because the Windows 11 KB5120998 Update Breaks Mouse Cursors due to a known bug in the August 2026 optional patch rollout.
How do I fix the black desktop background?
You must completely uninstall update KB5120998 from your update history and restart your computer to restore normal wallpaper functionality.
Will uninstalling this update delete my personal files?
No. Uninstalling a Windows update only removes system files related to that specific patch; your personal documents, photos, and apps remain perfectly safe.
Has Microsoft officially acknowledged this issue?
Yes. Microsoft has updated its release notes to confirm that the August 27, 2026 update is actively interfering with mouse cursor personalization settings.
Is KB5120998 a mandatory security patch?
No. It is an optional preview update designed to test new Taskbar and Search features, which is why it is safe to remove it.
What should I do after I fix the issue?
After you uninstall the patch, navigate to your Windows Update settings and pause updates for at least one to two weeks to prevent reinstallation.
When will an official Microsoft release notes fix arrive?
Microsoft is actively investigating the situation, and a stable patch is expected to arrive during the next mandatory Patch Tuesday release cycle.
Disclaimer: This article is for informational purposes only. Modifying system settings and uninstalling system updates carry inherent risks; proceed with caution and always ensure your personal data is backed up.
