Assuming that you have forgotten your AD password and need to reset it, there are a few ways that you can go about doing this. One way is to use a program like Kon-Boot, which will allow you to bypass the password prompt and change your password without knowing the old one.If you don't want to use a third-party program, then you can try resetting your password via the command prompt. To do this, you will need to have access to a computer that is connected to your AD domain. Once you have access, open the command prompt and type in the following commands:net user