2026-01 Security Update (KB5074109) (26200.7623) Failed to install on ‎06/‎02/‎2026 - 0x800f0983

Question

2026-01 Security Update (KB5074109) (26200.7623) Failed to install on ‎06/‎02/‎2026 - 0x800f0983

Updated repeatedly fails - affecting PC performance

*Moved from: System Center Service Manager

Answer 1

This very error 0x800f0983 was shown to lots of people after trying to install the KB5077181 February monthly patch for Windows 11. Later, it switched to 991 at the end. All these people including me with my Vivobook tried all possible deletion of SoftwareDistribution, catroot2 folders, restarting WU related services, SFC, DISM with Scanhealth, Checkhealth, Restorehealth, without source, with source at Windows Update, and even with the full ISO source, and the MSU patch from Microsoft Catalog. Everything fails.

However, all ten+ people who have tried have succeeded a miraculous cure using a new Windows 11 tool. It is in Settings, System (in the left sidebar), Recovery (a right sidebar option), and "Fix Problems Using Windows Update" (second tool in the right sidebar). Click "reinstall now" and don't be afraid of the terrifying verb. It preserves apps, files, and settings. Except for asking whether you want an automatic restart at the end, it is nothing else than a Windows Update process, just the patch is called "Windows 11 Recovery Edition". And it takes twice as long because it is really installing even things that the regular light Windows Update (incorrectly) decides that your PC does not need (that is really why these 800f errors appear). For me, a fast WiFi downloaded it in 10 minutes, followed by 55 minutes "installing" inside Windows, otherwise like a regular patch, and just 5 minutes of black-screen installation phase outside Windows, plus 2 extra minutes after the first login to a user profile. And when it was completed, I had the newest post-February-patch level of Windows 11.

You should simply do it, trust me, you are no longer a beta tester, this tool simply works (10 out of 10 confirm) and frankly speaking, it may be better to use it after any error of Windows Update.

Answer 2

The January update (KB5074109) is a very troublesome update, and contains many bugs, Microsoft released 3 out pf band updates to resolve some of the problems in that update, if that January update is continually failing, then the best option is to pause your updates, the February update is being released tomorrow with many new features, and if you wait for that update, it will supersede and remove the troublesome January update form the Updates list.

Answer 3

Hi Nick Powell,

Thanks for reaching out to Microsoft Q&A Forum. I understand the 2026-01 Security Update (KB5074109) (26200.7623) is failing to install with error 0x800f0983 and it is affecting your PC performance.

Could you please confirm:

1. What is your current Windows 11 version and OS build shown in winver?
2. Do you have any third-party antivirus or additional language packs installed?

In the meantime, you can try these steps:

1, Repair the Windows component store (often resolves 0x800f0983 servicing errors)

• Open Windows Terminal as administrator
• Run: DISM /Online /Cleanup-Image /RestoreHealth
• Then run: DISM /Online /Cleanup-Image /StartComponentCleanup
• Restart the PC

2, Try the update in a clean environment

• Temporarily disable or uninstall third-party antivirus (if installed), then restart
• Disconnect non-essential external devices (USB drives, docks, controllers)
• Try Windows Update again

3, Remove extra language packs (if any), then retry

• Open Settings, go to Time & language, select Language & region
• Remove any languages you do not actively use, then restart
• Try installing KB5074109 again

4, Install KB5074109 manually from Microsoft Update Catalog

• Go to https://www.catalog.update.microsoft.com/Search.aspx?q=%22kb5074109%22
• Download the package matching your device architecture (x64 or arm64), then run the .msu file
• Restart and re-check Windows Update

5, Use the built-in repair reinstall option (keeps apps and files, refreshes servicing stack)

• Open Settings, select System, select Recovery
• Under Fix problems using Windows Update, select Reinstall now
• After it completes, go back and try installing KB5074109 again

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