hello friend...hope so your problem is regarding logging in windows...any kind of operating system can be reset or hacked with an linux operating system installed in just an usb
so first download this operating system to your pc from the below link
then download this software to install your operating system to get into your pendrive
regarding the usage of the above software, u can refer the same page itself
then when all is done change your BIOS settings to boot from pendrive(as primary booting device)...
then watch this video link to reset your SAM file to reset your password
PIECE OF CAKE:-)
"feel free to ask further help...am here to guide u based on computers:-)"