Preparing automatic repair and Diagnosing your computer LOOP

Question

So this happened just today, I was uninstalling things from my LAPTOP and there was something in Chinese and I uninstalled it and it was something important that I needed to play a game and there was no way to get it back so I went ahead and factory reset my laptop and than I came across a video on how to reset my laptop WITHOUT losing my files AND it resets the things I installed/uninstalled so I shut the computer down while it was in the middle of a factory reset and than I turn it back on and BAM it says Preparing automatic repair and 2 seconds after that it says Diagnosing your computer and keeps repeating it and SOMETIMES it says something like 'this may couple hours to complete'' but I waited like 10 hours and nothing happened. Please help my laptop is a Dell Vostro 5470 and is running Windows 8 and was not upgraded to 8 and also I can't find my disk, IF it even came with my laptop.

LSUFAN51 · Answer

:emotion-2: Run Diagnostics by tapping F12 as soon as you reboot to access the boot menu.Don't wait for any screen before tapping F12. youtu.be/rMBIyeelQA0