USB & PS/2 Mouse and Keyboard don't work.

Hi,

I have a USB mouse and a PS/2 Keyboard but I also have a PS/2 Mouse aswell but no luck of any of them working.

I've recently updated my drivers for my logitech mouse and after the initial reboot my mouse & keyboard all of a sudden don't work.

Lights are on but I can't type or move the arrow of the mouse.

I've tried opening from safe mode and still no luck of anything working.

I cannot reinstall windows because my computer came with it and there was no CD with the package.

BUT my keyboard and mouse do work before the windows boots up but once it hits the desktop page, it doesn't.