Script doesn't work via Task Scheduler

Question

I've got the script below that works fine in an elevated PS window but when run as a sceduled task produces a last run result of 0x80070001 which I think is strangely something to do with Windows backup after some googling!
$LimitDay = 21
$limit = (Get-Date).AddDays(-$LimitDay)
# Path to Recurse
get-childitem -Path \\mainserver\backups\myfolder  -Force |where {$_.psiscontainer -and $_.lastwritetime -le $limit}|foreach { remove-item $_.fullname -recurse -force -confirm:$false }
The task is set to run with the highest privileges and usin a domain user service account, I have tried to deleteand recreate the job as well.
I'm trying to remove old backup folders based on their modified date and the contents, but not the contents when the modified date is valid e.g. server backups so config files date's never change but the folder to be deleted should still be recognised.

Answer 1

Hi,
in the Scheduler try to  call the script with the whole path like this:
powershell.exe -noexit &'C:\DATA\Scripts\myscript.ps1'
Regards
I'd use -File instead (and drop -noexit).
Action: Start a program
Program/script: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
Add arguments: -File C:\Path\To\Script.ps1
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