So I'm not sure exactly how to describe what is happening. I built this computer myself. (Don't think listing the parts is necessary for this problem/solution)
Basically, I'll be browsing the net, or even just doing homework on word or excel, and the computer will start to act funky. First it will freeze, from 5 - 30 seconds, mouse doesn't move, can't ctrl alt dlt, can't alt f4, nothin. When things snap back out of freeze mode, sometimes the mouse icon gets all funky, like normally if a hyperlink is hovered over it turns into a hand right? well it'll be a I cursor or it might be an old school looking hand that's all 8 bit.
It will freeze again, and usually the 2nd time it wont come undone and I usually reset my computer at this point.
if you have a seagate drive download seatools and see if your hard drive is having any issues. also burn a bootable copy of memtest and run it over night. also check what plugged into your usb ports. sometimes with a keybord and a hub or ipad or iphone you can pull to much power out of one set of usb ports and cause lock up. if you have another keyboard and mouse try swapping them and see if the mouse or keyboard was causing the lock ups.
if your missing drivers go to your vendor mb web page and download them.if your mb uses the intel chipset the newer ones are called intell chipset drivers. on intel web page. memtest is a program that check for bad spots on ram sticks. it run simple but slow tests looking for bad bits.