Windows 10: "Activate Windows" watermark randomly popped up after years of Windows 10 use

I've been using Windows 10 Pro for a few years now, and just recently, while playing a new game, the "Activate Windows" watermarked appeared out of nowhere. I've tried multiple things already, and nothing is helping my case.

I have not done any hardware changes, and this happened after an "Update and Restart" That I did to reset my computer, because of a memory leak that was slowing a game down.

:)

 

Activate Windows Watermark

Hi Duncan,

The Windows activation watermark is usually appearing if the activation servers detect that a device is not activated. For further help with activating your copy of Windows 10, visit this
link. If the same issue persists after performing the troubleshooting suggestions on the link, follow these steps:

• Using Cortana, type Notepad and then click on Notepad (Desktop app).
• Type the following commands in Notepad:
  • @echo off
    
    taskkill /F /IM explorer.exe
    
    explorer.exe
    
    exit
    
    
• 
  Save the file and name it as Activation.bat.
  
• 
  Change the Save as type to All files.
  
• 
  Locate the file, right-click on it and then choose Run as Administrator.
  
• 
  After running the file, restart your computer and then check if the same issue persists.
  

Let us know if further assistance is needed.

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.

 

DOWNLOAD WINDOWS 10 NOW - Upgrade and ISO direct from microsoft

Click to expand... Yeah I went to that site, why do I need to buy a key?
I won't buy a key, stupid.

I'll revert back to windows 7 then.

When I still was on windows 7, about a year ago I added 4GB extra ram which is a total of 8GB now,
is that causing the problem?