Decode Windows Autounattend.xml password using PowerShell
Recently I needed to recover the password that I forgot from Windows unattended installer file Autounattend.xml. Password is stored in this file as Base64 encoded value which can be easily decoded with following lines of PowerShell script. $EncodedText = “UABhAHMAcwB3AG8AcgBkAA==” $DecodedText = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($EncodedText)) $DecodedText To encode using PowerShell: $EncodedText = “UABhAHMAcwB3AG8AcgBkAA==” $DecodedText = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($EncodedText)) $DecodedText