Fix Error when installing/downloading Update KB5012643 On Windows 11, Fix Can't Update Windows 11 with KB5012643 Update
Step 1) Run Update Troubleshooter
Step 2) Restart Windows Update & Background intelligent transfer service
Step 3) Use Microsoft Update Catalog
[ Ссылка ]
Step 4) Use Windows 11 Installation Assistant
[ Ссылка ]
Step 5) Reset Windows Update Components
SC config trustedinstaller start=auto
net stop bits
net stop wuauserv
net stop msiserver
net stop cryptsvc
net stop appidsvc
Ren %Systemroot%\SoftwareDistribution SoftwareDistribution.old
Ren %Systemroot%\System32\catroot2 catroot2.old
regsvr32.exe /s atl.dll
regsvr32.exe /s urlmon.dll
regsvr32.exe /s mshtml.dll
netsh winsock reset
netsh winsock reset proxy
rundll32.exe pnpclean.dll,RunDLL_PnpClean /DRIVERS /MAXCLEAN
dism /Online /Cleanup-image /ScanHealth
dism /Online /Cleanup-image /CheckHealth
dism /Online /Cleanup-image /RestoreHealth
dism /Online /Cleanup-image /StartComponentCleanup
Sfc /ScanNow
net start bits
net start wuauserv
net start msiserver
net start cryptsvc
net start appidsvc

Name it Wufix.bat
Right-click on the Wufix file and click Run as administrator
Restart your PC
Step 6) Use Media Creation Tool
[ Ссылка ]

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