PowerShell – Clear Temporary ASP.NET Files

If your Temporary ASP.NET Files directory is getting out of hand there are a few things you can do about it.

First option I found was at https://sysadminspot.com/server-administration/powershell-cleanup-temp-asp-net-files/.

Get-ChildItem “C:\Windows\Microsoft.NET\Framework*\v*\Temporary ASP.NET Files” -Recurse | Remove-Item -Recurse

This option works well and in some cases could be the safer option as it can’t delete files that are currently in use.

I then found this option at https://foxsys.blogspot.com/2012/08/powershell-script-to-delete-temporary.html that in some ways is risker but is more thorough.

I like the second option when I can take a server out of a load balancer or temporary take the site down.

As a combination of both I came up with the below.

# WARNING ONLY RUN AFTER SERVER IS OUT OF LOAD BALANCER!
# THIS SCRIPT WILL STOP/START SERVICES FOR YOUR WEBSITE

$sleep = 10

clear

$disk = ([wmi]"Win32_logicalDisk.DeviceID='c:'")
"C: has {0:#.0} GB free of {1:#.0} GB Total" -f ($disk.FreeSpace / 1GB), ($disk.Size / 1GB) | write-output

Write-Output "Stopping IIS and sleeping $sleep seconds!"
Stop-Service W3SVC, WAS -force
Start-Sleep -s $sleep

Write-Output "Deleting Temporary Internet Files!"
Get-ChildItem “C:\Windows\Microsoft.NET\Framework*\v*\Temporary ASP.NET Files” -Recurse | Remove-Item -Recurse #-Verbose

Write-Output "Starting IIS Services"
Start-Service W3SVC, WAS
Get-Service  W3SVC, WAS

$disk = ([wmi]"Win32_logicalDisk.DeviceID='c:'")
"C: has {0:#.0} GB free of {1:#.0} GB Total" -f ($disk.FreeSpace / 1GB), ($disk.Size / 1GB) | write-output