2026-08 suojauspäivitys (KB5121003) (26200.9168) ei asennu ollenkaan. Lataa sen 99% asti eikä enempää

Hi, good day!

Here are some of the things you can try.

• Run the Windows Update Troubleshooter Open Settings > System > Troubleshoot > Other troubleshooters > Windows Update > Run troubleshooter
• Make sure Windows Update and Background Intelligent Transfer services are available and running. Press Windows key+R to open Run then type: services.msc Press Enter to open Services app Double-click Background Intelligent Transfer Service. If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart Double-click Windows Update. If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart
• Please try to run SFC and DISM to check for any system errors and corrupted files.  https://support.microsoft.com/windows/using-system-file-checker-in-windows-365e0031-36b1-6031-f804-8fd86e0ef4ca  Restart your computer

I look forward to receiving your update and I'm willing to collaborate with you till we resolve the issue. Do keep me informed by clicking "Add comment" below instead of Yes or No button.

Voit tehdä päivityksen myös näin, jos ei se onnistu Windows Updaten kautta:

Suora Microsoft Update Catalog -hakulinkki päivitykselle KB5121003 (Windows 11 25H2 Build 26200.9168):

Microsoft Update Catalog – KB5121003