Can't change screen resolution, help?

i try to change my screen resolution and the little (well big on my screen) arrow will not move, it just will not budge or drag.

i had a virus and had to wipe my computer clean i lost my documents and programs, i then got my programs back (by downloading them myself)

does anyone know how i can change my screen resolution another way?

please provide a SIMPLE step-by-step guide (i've not been using computers long and have never seen this before this

don't think i'm stupid lol, i'm 14Can't change screen resolution, help?
well the guy on top of me that thinks he has a master in networking is pretty sad if that's his solution to the problem

but you should check your computer what model it is. if it is a hp or dell just google your computer model ex: optiplex 2350 or something like that and open up the link that takes you to a support website for your computer

in there go to downloads and go to display driver or display or whatever it is. there should be an auto-extract or an easy way to download a driver

when its done it either takes care of it on its own once you run it or you;re gunna have to extract it to a folder and right click your computer go to properties, hardware, device manager, display adapters and right click on the one that should have a yellow sign on it

update driver and say to install manually put the file that the driver is in and press next it should take care of it on its own

let mek now what kind your computer is and i could give you better and more precise adviceCan't change screen resolution, help?
There's no other way. Try installing some software.
Restart your PC. If the mouse moves after that, right-click anywhere on your desktop that is blank, Click on Properties, Click on the settings tab, You can adjust your resolution in there. If your mouse doesn't work at all anymore, you may have to reformat your hard drive.
try figuring out what video card is in your computer (the card that the monitor connects to). Usually, they will have it stamped somewhere, or a sticker will have the brand/model on it. After you find that, do a google search for ';videocardnamehere driver';, videocardnamehere obviously being your video card. Install the driver, restart your PC, and try changing your resolution again.