Add optimize-windows.ps1 Windows optimization script - #7481
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…-run default) Adds a PowerShell tool that performs safe dry-run by default and supports -Execute, -Aggressive, -Force, and -Reboot flags for real runs. Requires Administrator privileges. Logs actions and writes a manifest of deletions/terminated processes. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Pull request overview
Adds a new administrative PowerShell utility (optimize-windows.ps1) intended to perform Windows cleanup/optimization with a dry-run default and optional execution/aggressive modes. This fits the repo as an operational/maintenance helper script rather than a runtime library change.
Changes:
- Introduces
optimize-windows.ps1with logging plus a JSON manifest of actions. - Implements temp cleanup, recycle bin emptying, process termination heuristics, optional service stopping, DISM/SFC runs, and volume optimization.
- Adds Windows Update cache clearing and optional reboot behavior when executed.
Suppressed comments (2)
optimize-windows.ps1:177
- Service stop/disable entries are currently written into the manifest's
terminatedsection. If you add a dedicatedservicessection, update this append to write there so consumers can distinguish services from processes.
if ($DoStop) {
if ($svc.Status -ne 'Stopped') {
Stop-Service -Name $svc.Name -Force -ErrorAction Stop
Set-Service -Name $svc.Name -StartupType Disabled -ErrorAction SilentlyContinue
Append-Manifest -manifestPath $manifest -section 'terminated' -entry $entry
Log "Stopped & disabled service: $($svc.Name)"
optimize-windows.ps1:127
$procInfosis expensive to compute (Get-CimInstance Win32_Process) and is never used, which adds avoidable runtime overhead for every run.
# Get process performance counters
$procInfos = Get-CimInstance Win32_Process | ForEach-Object {
$p = $_
$owner = try { ($p | Invoke-CimMethod -MethodName GetOwner).User } catch { '' }
[PSCustomObject]@{
| foreach ($it in $items) { | ||
| # Skip reparse points, system-critical files | ||
| if ($it.Attributes -band [IO.FileAttributes]::ReparsePoint) { continue } | ||
| $entry = @{Path=$it.FullName; Length=$it.Length; LastWrite=$it.LastWriteTime.ToString()} |
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| # Use Get-Process for CPU % via sampling | ||
| $samples = Get-Process | Select-Object Id, ProcessName, CPU, WS | ||
| foreach ($s in $samples) { | ||
| $name = $s.ProcessName | ||
| if ($whitelist -contains $name) { continue } | ||
| $wsMB = [int]($s.WS / 1MB) | ||
| $cpu = if ($s.CPU) { [int]$s.CPU } else { 0 } | ||
| $shouldKill = $false | ||
| if ($cpu -ge $CpuThreshold -or $wsMB -ge $MemMBThreshold) { $shouldKill = $true } | ||
| if ($shouldKill) { | ||
| $entry = @{Name=$name; Id=$s.Id; CPU=$cpu; WS_MB=$wsMB} | ||
| if ($DoKill) { | ||
| try { | ||
| Stop-Process -Id $s.Id -Force -ErrorAction Stop | ||
| Append-Manifest -manifestPath $manifest -section 'terminated' -entry $entry | ||
| Log "Terminated process $name (PID $($s.Id)) CPU=$cpu WS_MB=$wsMB" | ||
| } catch { | ||
| Log "Failed to terminate $name (PID $($s.Id)): $($_.Exception.Message)" | ||
| } | ||
| } else { | ||
| Log "Would terminate $name (PID $($s.Id)) CPU=$cpu WS_MB=$wsMB" | ||
| } | ||
| } | ||
| } |
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| function Get-TempPaths { | ||
| return @( | ||
| $env:TEMP, | ||
| $env:TMP, | ||
| "$env:SystemRoot\Temp", | ||
| "$env:SystemRoot\SoftwareDistribution\Download", | ||
| "$env:SystemRoot\Prefetch" | ||
| ) | Where-Object { $_ -and (Test-Path $_) } | Select-Object -Unique | ||
| } |
|
|
||
| # 8) Clear Windows Update cache (SoftwareDistribution) | ||
| $wuCache = "$env:SystemRoot\SoftwareDistribution\Download" | ||
| if (Test-Path $wuCache) { |
|
|
||
| function Create-BackupManifest { | ||
| $manifest = "$PSScriptRoot\optimize-backup-$(Get-Date -Format yyyyMMdd-HHmmss).json" | ||
| @{created=(Get-Date); deletions=@(); terminated=@()} | ConvertTo-Json | Out-File -FilePath $manifest -Encoding UTF8 |
| foreach ($d in $drives) { | ||
| if ($DoOptimize) { | ||
| try { | ||
| Optimize-Volume -DriveLetter $d.DriveLetter -Defrag -Verbose -ErrorAction Stop |
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| function Append-Manifest { | ||
| param($manifestPath, $section, $entry) | ||
| $json = Get-Content $manifestPath -Raw | ConvertFrom-Json | ||
| $list = $json.$section | ||
| $list += $entry | ||
| $json.$section = $list | ||
| $json | ConvertTo-Json | Out-File -FilePath $manifestPath -Encoding UTF8 |
Contributor
|
@HASSanHASSgit, again no issue is attached to this PR. Why do we need this change? |
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Motivation & Context
This change adds a PowerShell utility to automate Windows cleanup and performance optimization. It addresses the need for a repeatable maintenance tool that safely previews actions by default and offers an aggressive execution mode for administrators who want to reclaim resources and remove unnecessary temp/cache files.
Description & Review Guide
Related Issue
N/A
Contribution Checklist
breaking changelabel (or add "[BREAKING]" to the title prefix).