Microsoft uses online activation technology to block other users using the same product key. Windows License Invalid – You can input a key you are getting from online sources and it simply does not work because it has been used by others.Other than that, these are the reasons why There are varied reasons for it to appear, one of the most common reasons is when Windows is not activated/expired. Conclusion Reasons Behind Activate Windows Watermarkīefore jumping on to how to remove activate Windows watermark, you should know the reasons for it to appear on your screen.
