Readers consistently ask me whether it's still feasible to clean mount Windows 10 with an extra Windows 7 or Windows 8.1 product key. Scroll down to Windows Activation and look at the PID It will certainly look something like the complying with 12345-067-1234567-54321, the portion you are interested in is the 3 figure section if it matches or is within one or two figures of the instances above yo