Here at How-To Geek, we’ve covered many different ways to reset your password for Windows—but what if you can’t reset your password? Or what if you’re using drive encryption that would wipe out your files if you changed the password? It’s time to crack the password instead.
To accomplish this, we’ll use a tool called Ophcrack that can crack your password so you can login without having to change it.
The first thing we will need to do is download the CD image from Ophcrack’s website. There are two options to download, XP or Vista, so make sure you grab the right one. The Vista download works with Windows Vista or Windows 7, and the only difference between XP and Vista is the “tables” Ophcrack uses to determine the password.
Once the .iso file is downloaded, burn it to a CD using the guide below.