Windows 10: Why has Activate windows watermark suddenly appeared?

For no reason that I can see the Activate Widows watermark appeared on the bottom right of my laptop screen. I followed the instruction go to settings and tried to activate but got this response "windows reported that no product key was found on your device error code 0XC004F213. I've gone round in circles, troubleshooting, rebooting the device to factory settings to start from scratch. I've left my number 3 times for a call back and heard nothing. I have a desk top using the same microsoft account and that is fine.

:)

 

Activate Windows watermark suddenly appeared

No changes have been made to the hardware, and I've had this laptop for nearly two years. This morning, a watermark appeared in the bottom right corner of my screen telling me to activate windows.

On the activation page in settings it tells me I don't have a valid digital license or product key, with the error code "0xc004f012".

It also suggests that I try the troubleshooter below, which then tells me that troubleshooting was interrupted and gives the error code "0xc3f6501".

 

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.

 

Activate Windows watermark suddenly appeared

Hello, I'm sorry to have wasted people's time, and I feel kind of stupid now, but I just reset my computer, and everything was fixed: the watermark disappeared, windows is activated again.