Still activate windows watermark keeps coming back? Y ou can use a third party windows watermark remover tool, “Universal Watermark Disabler 1.0.0.6” which helps remove all kinds of watermarks in Windows 10. In addition, refer to this video for one more registry tweak that help remove activate windows watermark on windows 10. Close registry editor and any other programs and restart your computer.And Change the value “ 1” to a “ 0” and click OK to save changes.Double click on the value “ PaintDesktopVersion” in the right-hand window.Then expand HKEY_CURRENT_USER\Control Panel\Desktop.Open Windows registry editor by Press Windows + R, type regedit and hit the enter key.