If you install pirated Windows OS, it will run only for some months. After that you will get error This copy of Windows is not genuine and your screen may get blank screen. This method will work for 32 bit and 64 bit versions of Windows 7.
Fix for Error This copy of Windows is not Genuine
You must follow below 3 steps to remove error. After second step, your will be gone. Even then you must follow third step. Other wise you may get this error back once again.
Step 1 Uninstall Update KB971033
You are getting error “this copy of windows is not genuine”, that means your windows has an updated file which can detect your windows OS. So before going in to actual procedure, You must uninstall the update which was detecting your windows. Remember, if you see this mentioned update, then only you need to uninstall. If you don’t see this update, you can skip this step. Follow the below steps to uninstall windows update.
Step 2 : Use SLMGR -REARM command
Now Let’s see actual procedure to fix Windows not genuine error.
SLMGR -REARM must work for Windows 32 bit version. It may work for Windows 64 bit version. If it did not work for Windows 64 bit version, then only you have to try SLMGR /REARM.
Step 3 : Turn off Updates
You are not using original OS, so you can not get updates. And you must turnoff updates. Otherwise, you will get the same error one more time. If you don’t turn off updates, you OS will get updated. Any one of future updates may detect your OS genuinity. So there is chance that you will get error. Just follow below procedure.