Hello,
首先尝试修复丢失文件:
SFC /SCANNOW
DISM /Online /Cleanup-Image /StartComponentCleanup
DISM /Online /Cleanup-Image /RestoreHealth
然后试试用以下CMD命令重装Windows Defender
PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage *Microsoft.Windows.SecHealthUI*).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"
或者以下powershell 命令:
Get-AppxPackage *Microsoft.Windows.SecHealthUI* | Reset-AppxPackage
Best regards,
Karlie