cleanup chocolatey cache

Cleanup-SystemTempFiles.ps1

@@ -129,6 +129,17 @@ If ( $ShadowCopies.Length -gt 1 ) {
     }   
 }
 
+# Delete old temp directories from Chocolatey cache
+$ChocolateyCache = "${Env:WinDir}\Temp\chocolatey"
+$ChocolateyTempDirs = Get-ChildItem -Path $ChocolateyCache -Directory -ErrorAction SilentlyContinue | Where-Object { $_.LastWriteTime -lt ((Get-Date) - $TimeDelta) }
+If ( $ChocolateyTempDirs ) {
+    Write-Output "Deleting all temp directories not modified in ${OlderThan} day(s) from ""${ChocolateyCache}"""
+    ForEach ( $d in $ChocolateyTempDirs ) {
+        Try { Remove-Item $d -Force -Recurse -ErrorAction SilentlyContinue }
+        Catch { Write-Error $_.Exception.Message }
+    }
+}
+
 # Remove files from user profile directories
 ForEach ( $userProfile in $(Get-UserProfiles) ) {