If you are using a genuine Windows 11 that you have bought from Microsoft or any authorized retailer, then you must have its product key – this all needs to be provided when activating Windows. However, the method of activation depends on how you have acquired your copy of Windows 11 in the first place. So, how you activate Windows? By simply, typing in the license or product key. Technically, the watermark is just a straightforward reminder for you to activate it that requires no further explanation. I hope, now you know why you got the Activate Windows 11 watermark appeared on your monitor. But firstly it’s not only you every user who has an unactivated Windows 11 likely to get that. If you are still in dilemma that why on earth only your computer’s screen is getting a watermark “activate Windows 11” slapped on its corner, then don’t worry because here I’ve got the correct answer.
Or maybe you have made some significant hardware changes on your device. There must be some sort of Windows 11 update that you might have processed with, and that got you the watermark on your screen.