Clean IE and Chrome cache for all stale users. Handy on RDS servers.

Clean-Cache.ps1

<#
.SYNOPSIS
    Clean old cached items.

.DESCRIPTION
   Forcibly clear Google Chrome and IE Cache for all users staler than a certain number of days

.PARAMETER Days
    The number of days stale. Determined by LastUsed time from the user's profile.

#>
[cmdletbinding(SupportsShouldProcess = $True)]
param(
    [Parameter(Mandatory = $false)][int]$numDays = 7
)

#$numDays = 7
$staleDate = (Get-Date).AddDays( - ($numDays))
$LogFile = "\LogFiles\Clean-Cache\Clean-Cache-$((Get-Date -format 'yyyyMMdd')).log"

if ([bool]$WhatIfPreference.IsPresent) {
    Write-Output "**Running in WHATIF mode**"
}
Write-Output "Searching for profiles older than $($numDays) days ago ($($staleDate))..." |
    Tee-Object -FilePath $LogFile -Append

$Stale = Get-WmiObject -Class Win32_UserProfile -Filter "Special = false" |
    Where-Object { $_.LocalPath -notmatch "\\(Admin|Owner)" -and ($_.ConvertToDateTime($_.LastUseTime) -lt $staleDate) } |
    Sort-Object LocalPath

foreach ($p in $Stale) {
    Write-Output "Cleaning $($p.LocalPath) Google Chrome cache..." |
        Tee-Object -FilePath $LogFile -Append
    Remove-Item -path "$($p.LocalPath)\AppData\Local\Google\Chrome\User Data\Default\Cache\*" -Recurse -Force `
        -ErrorAction SilentlyContinue -WhatIf:([bool]$WhatIfPreference.IsPresent) -Verbose |
        Tee-Object -FilePath $LogFile -Append

    Write-Output "Cleaning $($p.LocalPath) IE cache..." |
        Tee-Object -FilePath $LogFile -Append
    Remove-Item -path "$($p.LocalPath)\AppData\Local\Microsoft\Windows\InetCache\*" -Recurse -Force `
        -ErrorAction SilentlyContinue -WhatIf:([bool]$WhatIfPreference.IsPresent) |
        Tee-Object -FilePath $LogFile -Append
}