The Offline NT Password & Registry Editor disc you just burned is "bootable" meaning it contains a small operating system and software and can be ran independent of the operating system on your hard drive. This is exactly what we need in this situation because you can't access the operating system on your hard drive right now because you don't know the password.
Insert the Offline NT Password & Registry Editor disc into your CD/DVD/BD drive and then restart your computer.
The initial screen you see after restarting should be the same one you always see immediately after starting your computer. There may be computer information as pictured above or there may be a computer manufacturer logo.
Offline NT Password & Registry Editor begins to load after this point in the boot process, as shown in the next step.