Update problem

noordkaap 0 Reputation points
2026-09-16T14:36:33.6833333+00:00

2026-09 Beveiligingsupdate (KB5129195) (26200.9457) Downloadfout - 0x800705b9 I am unable to install this update, it stops at 4% and then I get this error message. How can I solve this problem?

Windows for home | Windows 11 | Windows update
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  1. David-M 126.1K Reputation points Independent Advisor
    2026-09-16T15:10:10.9966667+00:00

    Hi. I'm David, and I'm happy to help you.

    To be able to assist you better, please clarify the following:

    • Do you have a third-party antivirus installed? If yes, which one?
    • Do you have any VPN software installed? (Even if it's not running at the moment) If yes, which one?

    Also. What is the current "OS Build" of your Windows 11?

    • Press "Windows + R", type winver, and click OK.

    If you prefer, share a screenshot. Use the shortcut "Windows + Shift + S" to use the screenshot tool.

    Be sure to censor your email address if it appears. The Microsoft Q&A is public.

    Looking forward to your reply.

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