This fault signal can be removed easily as it looks very irritating on the desktop.
So look at the complete guide below to permanently remove this fault signal from the windows screen.
Easy Ways To Fix Windows Not Genuine oops message
1.

First of all, press the Windows button and then typeCMD.
Now right-tap on the command prompt and select Run as administrator
2.
Now, typeSLMGR -REARMand press enter.

After this, you will see a success message.
When your gear starts, you wont see the annoying windows issue notification again.
Now you better key in rsop.msc in the box and hit enter.

Now you’re gonna wanna locate the following path WindowsSettings > Security options > System Services.
Now look for the Plug and Play option in System services.
Right-tap on it, and select properties.

Next, select Automatic on the Plug and Play Properties.
Now, again pop launch the RUN dialog box and typegpupdate/force.
Now kickstart your rig, and you will not see the Windows not Genuine error alert.

This will eventually fix your problem.
Additional Steps
you oughta modify your windows update options.
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