Powershell clear variables

without deleting variables one by one or closing the current ps window, is there a command i can use to clear all user defined variables?
Kylo RenSystem EngineerAsked:
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so Get-Variable will list all the variables and Clear-Variable will set it to null

If you prefix you variables with something, you can clear them all at the same time
$Mem= WmiObject Win32_ComputerSystem
$Mem1= WmiObject Win32_ComputerSystem
$Mem2= WmiObject Win32_ComputerSystem

Get-Variable mem*

Name                           Value
----                           -----
Mem                            \\PAUL-SEVEN\root\cimv2:Win32_ComputerSystem.Name="PAUL-SEVEN"
Mem1                           \\PAUL-SEVEN\root\cimv2:Win32_ComputerSystem.Name="PAUL-SEVEN"
Mem2                           \\PAUL-SEVEN\root\cimv2:Win32_ComputerSystem.Name="PAUL-SEVEN"

Get-Variable mem* | Clear-Variable
Get-Variable mem*

Name                           Value
----                           -----

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Kylo RenSystem EngineerAuthor Commented:
makes sense, thanks for the tip
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