windows update KB5120249

Mark Henry 0 Reputation points
2026-08-23T01:06:00.3633333+00:00

On Aug.21,2026 I installed windows 10 home on my computer. The computer run smoothly at standard mode. Later I did windows update KB5120249. Right after that the computer crash within 5 minutes. On Aug.22,2026 I removed update KB5120249, the computer back normal. It already run smoothly at standard mode. How to fix update KB5120249

Windows for home | Windows 10 | Windows update
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  1. TaoLi 106K Reputation points Independent Advisor
    2026-08-23T02:46:45.2533333+00:00

    Hi

    Since your computer runs normally before installing KB5120249 and crashes within 5 minutes after the update, the issue is likely related to this update.

    You can remove KB5120249 first:

    Open Settings → Update & Security → Windows Update

    Click View update history → Uninstall updates

    Find KB5120249 → right-click it → select Uninstall

    Restart the computer

    After removal, you can temporarily pause Windows Update to prevent it from being installed again:

    Settings → Update & Security → Windows Update → Pause updates

    You can also report this issue through Feedback Hub: https://aka.ms/feedbackhub

    KB5120249 details: https://support.microsoft.com/help/5120249

    If the crash returns, please share the error message or crash code from Event Viewer so we can further check.

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