also, you might try Last known Good Configuration
To start your computer using the Last Known Good Configuration that your computer has on record, simply start up your computer like normal and when you see the "Please select the operating system to start" message come up, hit the F8 key on your keyboard. Next, the Windows Advanced Options menu will appear and you can use your keyboard's arrow keys to scroll down to the "Last Known Good Configuration (your most recent settings that worked)" option. Once you've got it highlighted, press Enter.
Your computer will then boot up successfully and you'll be able to look into what caused the problem in the first place. Now, keep in mind that the Last Known Good Configuration feature does not automatically fix the problems you were having. It will only get your computer started so you can troubleshoot the rest of the problem on your own. Either way, it's an easy way to combat your computer startup troubles.
