PowerShell Commands
Chocolatey
Set-ExecutionPolicy Bypass -Scope Process -Force; `
iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
CTT Windows Utility
irm christitus.com/win | iex
Windows Online Fix
DISM /Online /Cleanup-Image /RestoreHealth
Windows Fix From ISO
If the above fix fails you can use an ISO as a source...
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Download the Windows ISO
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Mount the ISO and note the drive letter (ex. E:)
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Run DISM with the source flag
DISM /Online /Cleanup-Image /RestoreHealth /Source:E:\Sources\install.wim Windows Subsystem for Linux (WSL) wsl --install -d ubuntu