Recently changed to Ubuntu, wanting to try out and learn the command line, etc. Then after about 2 weeks I wanted to change to a harder Linux distribution, like arch, so I proceeded to make a boot able USB and put it in. My computer was unable to find it in the BIOS, so I played around with some settings in it.
Now when I try to start my computer all I see is a black screen and hear 1 beep and then 3 fast beeps following the first beep. I can SOMETIMES start and enter Ubuntu, without any problems, but some times it just continues to an infinite black screen that doesn't change no matter what I press and do. I got an asus boot menu, and I think I change some setting where it stood "Windows something something". Can someone give me a solution or have any idea on what I changed?