Windows is not Genuine Error notifications occur when
your computer hasn't passed the validation test. The validation test can be
failed because you installed a pirated non-genuine copy of windows, or sometimes it
just happens for no reason at all. However, you can easily get rid of these
annoying notifications yourself.
How to Identify your system is not genuine?
How to Identify your system is not genuine?
See below image and when your system prompts for that error, it means your windows copy not passed in validation test and your windows is not genuine.
For solved this error follows below steps
Step 1
Open Command Prompt as administrator in start menu > all programs >accessories >command prompt .
Right click on the command prompt and select run as administrator.
Step 2
Type SLMGR/REARM and press enter
Step 3
Wait for a few seconds, after the few second system prompt for system restart request. Press OK button
Step 4
Restart System.
