Files shortcuts, anything won't respond on computer?

whenever i open anything on my computer it says not responding and stays frozen, and it stays like that the whole time, i clicked the start bar and i typed a letter on the search bar and the whole start bar froze, the only thing that doesn’t freeze is the internet, which i’m using now :p. i’m even on safe mode, and the same thing happens, i’ve also tried downloading and it freezes too, everything but the internet freezes, i tried scanning the computer, and even the antivirus scan froze in the middle of scanning, im in a horrible situation basicly im unable to open anything im no computer genius, help me out here guys D: