Hi, I am Dave, I will help you with this.
1
Are you unable to get into Windows normally, are you blocked by that blue screen?
2
Does this method get you into the Recovery Environment and if so, are all options like System Restore, Safe Mode... etc. failing in there?
Start your PC, just as Windows attempts to load (spinning dots), press and hold Power Button for 5 - 10 seconds to perform a Hard Shut Down
Do this twice
On the third start Windows will boot into the Recovery Environment and from there you can access System Repair, Safe Mode, Command Prompt... etc.