I own a lenovo y700 gaming laptop and recently my computer has started randomly restarting eventually after it restarted it made it to the desktop page and screen would begin flashing on and off then I thought it was a problem with my graphics card. I updated that and it started to work fine until today when it restarted, now I it wont bring me to the home page at all and instead its stuck on a black screen with the windows 10 spinning circle loading sign on it and control alt delete doesn’t work either.