Believe me, this watermark can really be annoying! On the bright side, the problem can be solved pretty quickly. Most users in such cases do choose kms pico this is probably the most famous utility that helps to cheer up the system after a failed update. It works on the principle of local server emulation, so activation is almost instantaneous. The main advantage is that if you find a clean version on a reliable forum, you can forget about the problem in two clicks. This is a time-tested method that has saved many when official keys suddenly disappeared. The main thing is to add the file to the antivirus exceptions before running it, and the system will be like new again.