Windows 11 Maintenance (DISM, SFC, compact VM disks)

Start-Maintenance.ps1

#Requires -RunAsAdministrator

$logFile = "$env:USERPROFILE\Desktop\WindowsMaintenance_$(Get-Date -Format 'yyyyMMdd_HHmmss').log"
Start-Transcript -Path $logFile -Append

"Starting Windows maintenance routine..."

if ($wslFeature.State -eq 'Enabled') {
    "Shutting down WSL..."
    wsl --shutdown
}

$drives = Get-Volume | Where-Object {
    $_.DriveLetter -match '^[A-Z]$' -and $_.FileSystem -ne $null -and $_.DriveType -eq "Fixed"
}

Start-MpScan -ScanType QuickScan

DISM /Online /Cleanup-Image /RestoreHealth

sfc /scannow

foreach ($drive in $drives) {
    $letter = $drive.DriveLetter
    "Running chkdsk on drive $letter..."
    chkdsk.exe /scan "${letter}:"
}

"Optimizing local VHDX files..."
Get-ChildItem -Path $Env:LOCALAPPDATA -Recurse -Filter *.vhdx -ErrorAction SilentlyContinue | ForEach-Object {
    "Optimizing VHD: $($_.FullName)"
    Optimize-VHD -Path $_.FullName -Mode Full
}

foreach ($drive in $drives) {
    $letter = $drive.DriveLetter
    "Optimizing drive $letter..."
    Optimize-Volume -DriveLetter $letter -NormalPriority -Verbose
}

"Cleaning temporary files..."
Get-ChildItem "$env:TEMP" -Recurse -ErrorAction SilentlyContinue | Remove-Item -Force -Recurse -ErrorAction SilentlyContinue

"Disk space report:"
foreach ($drive in $drives) {
    $letter = $drive.DriveLetter
    $freeGB = "{0:N1}" -f ($drive.SizeRemaining / 1GB)
    "Drive ${letter}: $freeGB GB free"
}

"Reviewing recent system errors..."
$errors = Get-WinEvent -LogName System -FilterXPath "*[System[(Level=1 or Level=2) and TimeCreated[timediff(@SystemTime) <= 86400000]]]"
if ($errors.Count -gt 0) {
    "Errors found in the System log:"
    $errors | Format-Table TimeCreated, Id, Message -AutoSize
} else {
    "No critical or error-level events in the last 24 hours."
}

# if (Get-Module -ListAvailable -Name PSWindowsUpdate) {
#     "Checking for Windows Updates..."
#     Import-Module PSWindowsUpdate
#     Get-WindowsUpdate -AcceptAll -Install -AutoReboot
# } else {
#     "PSWindowsUpdate module not found. Skipping update check."
# }

"Windows maintenance complete!"
Stop-Transcript