As the name suggests, the Remove variable destroys a variable and any data it may hold.

The Remove variable is used as follows:

$psProcesses = Get-Process powershell 
Remove-Variable psProcesses 

If more than one variable refers to an object, the object won't be removed. For example, the following command shows the name of the first process running (conhost.exe, in this particular case):

PS> $object1 = $object2 = Get-Process | Select-Object -First 1
PS> Remove-Variable object1
PS> Write-Host $object2.Name

conhost