I recently overcloked my monitor for my Acer NItro 5 AN515-45 for more fps while gaming and it asked to restart. I restarted and loaded fortnite but it showed up as a black screen so I shut the computer down but when i started the computer it showed the acer logo and then kept switching to a gray screen then after 3 seconds a black screen and so on. After 2 minutes of the cycle it loads to say choose your keyboard layout showing trouble shoot options. Please help me to fix this and load windows. I can load BIOS settings too.