How Can I Fix the Unmount Hive Error in My Script?

Be sure to close your handles correctly. If you're using `$Key = Get-Item HKCU:Console`, you need to follow up with `$Key.Dispose()` to clean up before unmounting the hive.

You might want to check your script for a few flaws. Make sure the user hive isn’t already loaded to avoid corruption and consider removing unnecessary commands like [System.GC]::Collect(), since they can slow down your script without actually helping.

If these students are using the same user account, that might be part of the problem. You could set up a login script or scheduled task to rewrite the registry keys. But really, allowing them to rename things like the Recycle Bin means they probably have too many rights. It might be worth looking into GPO settings to manage their access.

Here's a sample of the code you might want to try:
```powershell
$targetUser = 'Default'
$hiveName = 'UserHive'
reg load "HKLM$hiveName" "C:Users$targetUserNTUSER.DAT"
Start-Sleep -Seconds 2
$null = Reg.exe delete "HKLM$hiveNameSoftwarePoliciesMicrosoftOffice16.0commonlanguageresources" /f
Start-Process -NoNewWindow -Wait -FilePath "C:WindowsSystem32reg.exe" -ArgumentList "unload", "HKLM$hiveName"
while (Test-Path "HKLM:$hiveName") {
Start-Sleep -Seconds 1
}
```
This could help with the unmount process. Also, consider using GPO to lock down certain features instead.

It sounds like your script is freezing because of the Start-Sleep command. Instead, consider using Start-Job to run your commands asynchronously—it could solve your unmount issue without pausing your entire script.