1 - Select a windows key for whichever version of windows you are running.
Home: TX9XD-98N7V-6WMQ6-BX7FG-H8Q99
Home N: 3KHY7-WNT83-DGQKR-F7HPR-844BM
Home Single Language: 7HNRX-D7KGG-3K4RQ-4WPJ4-YTDFH
Home Country Specific: PVMJN-6DFY6-9CCP6-7BKTT-D3WVR
Professional: W269N-WFGWX-YVC9B-4J6C9-T83GX
Professional N: MH37W-N47XK-V7XM9-C7227-GCQG9
Education: NW6C2-QMPVW-D7KKK-3GKT6-VCFB2
Education N: 2WH4N-8QGBV-H22JP-CT43Q-MDWWJ
Enterprise: NPPR9-FWDCX-D2C8J-H872K-2YT43
Enterprise N: DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4
2 - Open Command Prompt as Administrator
3 - Run the command “slmgr /ipk YOURKEYHERE” (use the key you selected from above, make sure its is for your correct version of windows). Wait a few seconds and if done correctly you will get a white box that pops up saying "Installed product key (YOURKEY) successfully
4 - Run the command “slmgr /skms kms8.msguides.com” Wait a few seconds and a white box should pop up saying "Key Management Service machine name set to kms8.msguides.com successfully"
5 - Run the command “slmgr /ato” wait a few seconds and you should see a white box pop up confirming windows was activated.
6 - Done! Enjoy activated windows for FREE