Can't install update KB5099539

Fred Pearce 1 Reputation point
2026-07-23T07:47:04.5+00:00

I can't install Windows Update KB5099539 on a Dell XPS 8910.

It gets to 100% and then comes up with error 0x80073701.

I have tried installing from the msu, running the troubleshooter, DISM, sfc and clearing the update cache.

After the last update, I ran into the secure boot freeze issue and have disabled the secure boot updates.

Any help would be hugely appreciated.

Windows for home | Windows 10 | Windows update
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  1. Kayece Jan Mae Amizola 16,475 Reputation points Independent Advisor
    2026-07-23T08:36:21.55+00:00

    Hi,

    There may be missing system files or assemblies causing this issue. One solution is to perform a repair installation of Windows 10. This process will preserve your files and applications, but it is still strongly recommended that you back up your important data beforehand. Please refer to the guidelines in the article below and follow the instructions carefully.

    Repair install of Windows 10

    If you need additional assistance, please let me know.

    Stay Safe!

    Disclaimer: There are links to non-Microsoft websites. The pages appear to provide accurate and secure information. Watch out for ads on websites that may advertise products that are often classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on websites before deciding to download and install it.

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