Opening Command Prompt from Advanced Options The Choose an option screen will appear so navigate to Troubleshoot > Advanced options > Command Prompt You will see a Choose your keyboard layout window so choose the one you want to use.If you are not able to access your operating system at all, you will have to insert the installation drive you own or which you have just created and boot your computer.Since this issue mostly occurs when you are not able to access your operating system, all troubleshooting will be run from the advanced startup options. However, before you run it, you should rename two system files which cause the “You must enable system protection on this drive” message to appear. System Restore can also be run in a command prompt window. Make sure you check out both causes and the methods related to them! Solution 1: Use Command Prompt to Rename Registry File and Perform the System Restore The second cause may be the fact that the S ystem Protection service is simply not running on your computer and you need to restart it properly. This can be more difficult if you have accessed System Restore from the Advanced Startup.
The first case scenario is that System Protection is simply not activated on your computer and you have to activate it manually. This problem can be caused by two distinct causes. What Causes the “You Must Enable System Protection on This Drive” Error on Windows?