Clean reinstall, no back up no drivers pleade help

Solution
You likely screwed something up by reseting the BIOS to default. What is impossible for me to know.
Don't buy used computers if you're not computer literate I guess.
Take it to a computer repair shop or a friend who knows computers.
I have reinstalled windows 8.1 and 7 to try to fix it and it never had the mouse function just the keyboard. The mouse function only worked when i was i the screen where i put my password to open the desktop...navigating through the desktop takes forever to load too.
 


Harsh words, but true
 


I guess ill have to get it repaired then. Thanks for the help