PS C:>Remove-ItemProperty HKLM:SOFTWARENodeSoftware -Name AppSecurity -Force -Verbose
VERBOSE: Performing the operation "Remove Property" on target "Item: HKEY_LOCAL_MACHINESOFTWARENodeSoftware Property: AppSecurity".
#example:
PS C:> Set-Location HKLM:SOFTWARENodeSoftware
PS HKLM:SOFTWARENodeSoftware> Remove-ItemProperty -Path . -Name AppSecurity -Force -Verbose