Windows 10 does not have a deactivation option.
Windows 10 upgrade retail license.
Use this guide if you re reinstalling windows 10 without a printed or emailed product key.
If windows 10 can retrieve your key from the motherboard then there s nothing else you need to do.
Reactivate windows 10 using a digital license.
When you walk into a store or pop over to microsoft s website handing over that 139 for windows 10 home or 200 for windows 10 pro gets you the retail license.
You ll need it to replace your current license key.
Upgrade from windows 10 home to pro via a license key digital license.
If you work with big data create large graphics edit video or need cad computer aided design windows 10 pro for workstations is for you.
If you do have a copy of windows 10 pro or maybe you found a retail copy of the upgrade for less than microsoft charges you ll have a product key alternately called a license key that enables windows 10 pro.
To move a full windows 10 license or the free upgrade from a retail version of windows 7 or 8 1 the license can no longer be in active use on a pc.