But note that a key can only be used on one PC at a time, so if you use that key for a new PC build , any other PC running that key is out of luck. Downsides of Using an Old Key When using an older Windows key to activate Windows 10, you may run into complications if Microsoft isn't sure whether you're eligible to update or not. But that seems to be happening less in recent months and years. Don't Activate Windows: I have colleagues who have used non-activated versions of Windows for years without Microsoft ever shutting it down. Microsoft brands PCs running an unactivated version of Windows 10 with a watermark in the bottom-right corner of the screen.
Have one to sell? Get an Operating System that starts up and resumes fast, has more built-in security to help keep you safe and is designed to work with the software and hardware you already own. Windows 10 Pro is a modern OS that comes from a long line of popular, functional releases from Microsoft. Windows is perfect for gamers, office computers, and everything in between. Windows 10 Pro helps you store what you need, find it when you need it, and clean things up to save space.
This offer seemed the perfect solution for my circumstances. Paul sent the license almost immediately after purchasing, and the installation was easy. Thank you for helping me resurrect an old trusted system. It is running faster than ever! Verified purchase: