I forgot my password to my amdim

Or try http://www.resetwindowspassword.com/
I just used it last week.
you see, it's also the recommendation of http://pcsupport.about.com/od/toolsofthetrade/tp/prem-windows-password-recovery.htm

If you can not remember the windows admin password, try to reset it with a reset disk. Free download windows password unlocker from http://www.passwordunlocker.com/products/wpu.html and there is a .iso file included. Burn the .ISO file onto a blank CD which is so-called windows password reset disk. With this disk, you can reset the unknown password without erasing anything