Resetting my computer to factory settings

Hi everyone, looking for some help. I'll give you guys the rundown.

My computer has become riddled with viruses, some that i know of include a bunch of browser takeover ones that i have tried to get rid of but keep popping up. Whenever i run Security Essentials and MalwareBytes i get lots of stuff popping up and i remove it. My computer has become very slow and annoying to use, so i want to reset it back to factory settings.

Here's my problem though, i dont have any system restore points set up when i got it, i was young and naive, and i dont have the disks anymore to reinstall. I don't care about my files, they can all be wiped, i just wanna have a smooth operating computer again.

I would love any suggestions or tips on how to resolve this issue.

TL;DR
No windows 7 disks, no system restore points, don't care about my files, want to go back to factory settings.

Certified Data Intel Core i7 4770 Desktop Computer - London Drugs

Wow. Well if those are builders then you can check the paperwork which came with it or the Manual for your specific model online to see if there's an onboard Recovery partition or DVD to run to reset to factory condition.

If not then confirm that there's a COA sticker for Win7 on the box to use to do a Clean Reinstall Windows 7.
It discusses in Step 1 how to obtain reinstallation media if it did not come with the PC.

gregrocker said:

Wow. Well if those are builders then you can check the paperwork which came with it or the Manual for your specific model online to see if there's an onboard Recovery partition or DVD to run to reset to factory condition.

If not then confirm that there's a COA sticker for Win7 on the box to use to do a Clean Reinstall Windows 7.
It discusses in Step 1 how to obtain reinstallation media if it did not come with the PC.

Thanks, i read your guide earlier and considered doing this, i'm gonna try this tomorrow, i'll let you know how it goes.