How to Remove Windows Activation Notifications and Watermark Using Registry Editor

You can temporarily remove Windows activation notifications and watermark from an unactivated version of Windows. You can do this by changing a value in the Services menu or by editing the Windows registry. Keep in mind that the only way to permanently remove Windows activation notifications is to activate Windows.
1-Open Start. Click the Windows logo in the lower left corner of the screen.
2-Type regedit in Start. This will search for the Registry Editor command.
3-Click on regedit. It's a collection of blue blocks at the top of the Start window.
4-Click Yes when prompted. This will open the Registry Editor window.
5-Expand the /"HKEY_LOCAL_MACHINE/" folder. Click the image titled Android7expandright.png to the left of the /"HKEY_LOCAL_MACHINE/" folder in the upper left corner of the registry window.
If you see an indented folder column below /"HKEY_LOCAL_MACHINE/