Computer won't shutdown after reformatting

I tried reformatting the computer and was able to reformat after that it will not turn off it'll just display at the bottom "restarting the computer" and it stayed on so I manually tun off the computer and continue to the next installation process where it installed the other software and the TIME and stuff and after that it did the same, it will not turn off the computer so again I manually turn off the computer and again I continue the installing this time the drivers, every time the computer prompted me to restart the computer or turn off the computer, I do it but it will not turn off the computer. If anyone could offer some concrete advice/assistance I'd truly appreciate it.