THIS WILL NOT WORK ON LIVE ACCOUNTS. Learn how to hack a local forgotten password on Microsoft Windows 8 with this video tutorial. This video is used on Windows 8.1, but I've done this on Windows 8 as well. The only thing that is required is access to the boot order and a Windows 8 repair disc. Make sure to get the same operating system as the one on the computer. You can't use a Windows 8.1 disc to hack a Windows 8 PC. It doesn't have to be a repair disc, it can be an install disc or even a bootable USB. The computers I've done this with had neither TPM chips or UEFI, so "Your mileage may vary."
This is a replacement to the Ultimate Boot CD video that I made. ( www.youtube.com/watch ) Since that doesn't work on Windows 8.
As always, remember to use this safely and legally. YOU are responsible for any damage you do or laws you break.