management-scripts/Fix-WindowsHealth.ps1

# Run SFC to check the filesystem, convert the result from Unicode to UTF8, delete the intermediate $tempFile
$tempFile = New-TemporaryFile
$(sfc.exe /scannow) | Out-File $tempFile
Set-Content -Path $tempFile -Value $(Get-Content -Path $tempFile -Encoding Unicode) -Encoding UTF8
$SFCOutput = Get-Content -Path $tempFile
Remove-Item $tempFile -Force -ErrorAction SilentlyContinue

# Examine $SFCOutput for integrity violations, if found make sure chkdsk runs at the next boot
If ( $SFCOutput -contains 'Windows Resource Protection did not find any integrity violations.' ) { $ScheduleCheckDisk = $false } Else { $ScheduleCheckDisk = $true }

# Run enhanced DISM for Windows 8 and higher endpoints
If ( IsWindowsVersion -ge "6.2" )
{
    # Record start of DISM repair
    $BeginDISMRun = (Get-Date)

    Write-Output "Beginning repair of Windows Component Store"
    Start-Process "dism.exe" -ArgumentList "/online /cleanup-image /restorehealth" -Wait

    Write-Output "Beginning cleanup of superceded components in Windows Component Store"
    Start-Process "dism.exe" -ArgumentList "/online /cleanup-image /startcomponentcleanup" -Wait

    # Record end of DISM repair
    $EndDISMRun = (Get-Date)

    # Extract results of DISM repair from system log and add them to this log
    Write-Output "Beginning Windows Component Store log data collection"
    Get-Content -Path "${Env:WinDir}\Logs\DISM\dism.log" | Select-String -Pattern '^(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})' |
        ForEach-Object {
            If ( ((Get-Date $_.Line.Substring(0,19)) -gt $BeginDISMRun) -and ((Get-Date $_.Line.Substring(0,19)) -le $EndDISMRun) ) {
            Write-Output $_.Line
        }
    }
    Write-Output "Completed Windows Component Store log data collection"
}
Else { Write-Output "Online image cleanup and restoration is only supported on Windows 8 and higher" }

# Schedule Check Disk if needed
If ( $ScheduleCheckDisk ) {
    Write-Output "Scheduling disk repair at next boot"
    Start-Process "cmd.exe" -ArgumentList '/C echo y | chkdsk /F /R /X' -Wait
}