$Reg = (Get-Item 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU').GetValueNames()
foreach ($Value in $Reg)
{
if ($Value -eq 'MRUList')
{
Set-ItemProperty 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU' -name $Value -value ' '
}
Else
{
Remove-ItemProperty 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU' -name $Value
}
}