Please ignore 'Perform an in-place upgrade(reinstallation)' section from the above article. When you use System Restore to restore the computer to a previous state, programs and updates that you installed are removed. Important: After you have finished troubleshooting, follow these steps from section “How to reset the computer to start as usual after clean boot troubleshooting” to reset the computer to start as usual.
Do not turn off your computer' error when you try to install Windows updates Please use suggestions provided in this Microsoft knowledge based article and check the issue. Run Windows update troubleshooter and check. I would suggest you to try following methods and check if it helps.
What do you mean when you say, 'it displayed the startup menu as if it had crashed'? Thank you for posting your question on Microsoft community forum.
