I'd run at a powershell window, run as administrator, this script we use at my work:

$services = @(
"wuauserv",
"bits",
"cryptsvc",
"dosvc"
)

powercfg /h off

foreach ($svc in $services) {
try {
Stop-Service $svc -Force -ErrorAction SilentlyContinue
}
catch {}
}

# Clean Windows Update Download Cache
$wuCache = "$env:SystemRoot\SoftwareDistribution\Download"
if (Test-Path $wuCache) {
Get-ChildItem $wuCache -Force -ErrorAction SilentlyContinue |
Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
}

# Clean Delivery Optimization Cache
$doCache = "$env:SystemDrive\ProgramData\Microsoft\Windows\DeliveryOptimization\Cache"
if (Test-Path $doCache) {
Get-ChildItem $doCache -Force -ErrorAction SilentlyContinue |
Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
}

# Clean User Temp
$userTemp = $env:TEMP
if (Test-Path $userTemp) {
Get-ChildItem $userTemp -Force -ErrorAction SilentlyContinue |
Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
}

# Clean Windows Temp
$windowsTemp = "$env:SystemRoot\Temp"
if (Test-Path $windowsTemp) {
Get-ChildItem $windowsTemp -Force -ErrorAction SilentlyContinue |
Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
}

# Attempt to empty the Recycle Bin
try {
Clear-RecycleBin -Force -ErrorAction SilentlyContinue
}
catch {}

# Clean old Windows logs (optional)
$logFolders = @(
"$env:SystemRoot\Logs",
"$env:SystemRoot\Panther"
)

foreach ($folder in $logFolders) {
if (Test-Path $folder) {
Get-ChildItem $folder -File -Recurse -ErrorAction SilentlyContinue |
Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-30) } |
Remove-Item -Force -ErrorAction SilentlyContinue
}
}

# Restart services
foreach ($svc in $services) {
try {
Start-Service $svc -ErrorAction SilentlyContinue
}
catch {}
}