TIP: Keys that will affect the bootup process are F4, F5, F6, F8, Shift+F5, Control+F5 and Shift+F8. Try them out and see what happens!!!
Then rename all files with the extension .pwl by typing the following command: C:\windows>ren *.pwl *.xyz Or delete them by typing C:\windows>del *.pwl *.xyz Now when the Windows password login pops up you can write anything in the place where the windows login password is got to be typed. As you have renamed (or deleted although renaming then would be better as the victim will not know that his PC has been tampered with.)the windows password files windows cannot find that file so when you enter a password that you have made up in your mind Windows just takes it as the original password.