When using PowerShell Commands for Active Directory modifications on AD objects are scripted easily. But dealing with some properties (e.g., sIDHistory) requires a special approach. Let's say we need to clear the sIDHistory for the account TEST01 This account does have the sIDHistory attribute populated [PS] C:\>$user=Get-QADUser -SamAccountName TEST01 -IncludedProperties sidhistory [PS] C:\>$user.sIDHistory 0105000000000005150000002B012212B316AD0EEE04CFAD576F1600 If we want to clear an attribute like DisplayName we can use Set-QADUser and set the attribute to $null like this: [PS] C:\>Set-QADUser $user -ObjectAttributes @{DisplayName=$null} Name Type DN ---- ---- -- Test01,User ...