Open Command Prompt or PowerShell and enter "wmic bios get serialnumber" to find your PC's serial number. Windows and System Information won't display your PC's serial number. If the command doesn't ...

Dreamweever66 needs to reinstall Windows. He asked the Answer Line forum where he can find that 20-digit number that tells Microsoft he bought Windows. The fact that you have a Windows CD handy ...

There are various reasons you might want to find your laptop or computer’s serial number. Some schools ask that you register your laptop for academic use. Workplaces often do the same thing. You may ...