🧹 Clear Windows Update Cache

Intune Remediation · Purges SoftwareDistribution\Download when it bloats past 1 GB

Test in a pilot group before you point this at the fleet. Detection exits 1 to trigger remediation, 0 to stay put.

Detection Script

Detect cache over 1 GB detection

Exits 1 (non-compliant) to trigger remediation. Exits 0 if clean.

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# Flags a Windows Update download cache over 1 GB.
$path = "$env:WinDir\SoftwareDistribution\Download"
$size = (Get-ChildItem $path -Recurse -File -ErrorAction SilentlyContinue | Measure-Object Length -Sum).Sum / 1GB

if ($size -gt 1) {
    Write-Output "Non-compliant: $([math]::Round($size, 2)) GB"
    exit 1
}

Write-Output 'Compliant'
exit 0

Remediation Script

Stop services, purge, restart remediation

Runs only when detection exits 1.

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# Stops update services, clears the cache, starts them.
Stop-Service wuauserv, bits -Force
Remove-Item "$env:WinDir\SoftwareDistribution\Download\*" -Recurse -Force -ErrorAction SilentlyContinue
Start-Service bits, wuauserv

Intune Remediation Settings

Run this script using the logged on credentials No

Enforce script signature check No

Run script in 64-bit PowerShell host Yes

Schedule (recommended) Weekly