Comments In brief For the longest time Windows PCs came with a product key sticker that was placed outside of the machine or with your computer's manuals. Certainly a better approach overall. In other instances, for example if you built and installed your OS, your key is associated with your Microsoft account, so there is no way to "lose it" anymore. Read on for more details. Microsoft has been changing and improving the way it handles Windows licenses.
If activation troubleshooter doesn't work. Link your Windows license to your Microsoft account Your Windows 10 license must be linked to your Microsoft account to reactivate it. If you don't have a Microsoft account, you can sign up for one at account.
July 05, - 19 comments You may link a Microsoft account windows 10 license account a Windows 10 license on a device on Windows 10 license account 10 version and later Anniversary Update. The main benefit of doing so is that it may help you reactive Windows 10 on the machine if you make a "significant" hardware change. Windows 10 remains activated if you change some hardware components like a hard drive or a video card. The operating system may see a device as a new machine if you make significant changes to the hardware, for instance by replacing the motherboard with a new one. You may overcome activation issues after making changes to the hardware of a Windows 10 machine by linking a Microsoft account to the license.
Link Microsoft Account To Your Windows 10 Digital License