If you are having problems activating Windows 10, Server 2016, Windows 8, or Server 2012 one of these three solutions below should get you through:
Command Line to Launch Activation GUI:
This is handy if the GUI won’t start and you want to skip some steps to get it to work:
click START (gets you to the tiles)
type RUN
type slui 3 and press ENTER
yes, SLUI: which stands foR
SOFTWARE LICENSING USER INTERFACE
SLUI 1 brings up the activation status window
SLUI 2 brings up the activation window
SLUI 3 brings up the CHANGE PRODUCT KEY window
SLUI 4 brings up the CALL MICROSOFT & MANUALLY ACTIVATE window
Type in your product key
Have a nice day.
Command Line to Activate Windows
Through Command Line:
1. Launch a CMD as an Administrator
2. Type: slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
3. Press Enter