How do I completely restore my laptop like it gets brand new again?  

- Lately ive been having alot of issues with my new laptop. It is a new laptop, I can post spec's at the end of this post. After restoring to an earlier point for about four week's ago, it has always frooze atleast one time after startup when entering internet or other applications. The mouse doesn't freeze, but if I click while the screen is froozen, then the mouse freezes too, and this beep sound comes after the freezing part is over. This happened now: I played a game AVA (FPS), with 140fps, no possible lag can caused this. And the game just started to freeze, like every five secounds.

So I have now decided to restore it. Remove EVERYTHING, except Windows. I have no CD's or so, so I can't backup. I tried following this guide: How to Restore Your Computer to Like New | eHow

But at the part where: "As the computer boots from the CD you will be prompted to choose to either repair your operating system or to reinstall it."

I only have a "repair" option, no re-installation. Is there any other way's? I have no experience when it comes to this. So I need proffessional help.

- Thanks!

Spec's;


15.6" Wide LED Full HD screen, Matt type, uten reflekser (anti-glare)
3rd gen Intel® Core™ i7 3630QM 2.4-3.3GHz processor, quadcore
Intel HM77 Express chipset
8GB DDR3 1600MHz SO-DIMM memory (2x4GB)
NVIDIA GeForce GTX 675MX 4GB GDDR5 graphic card
750GB hard drive (ramme for å bytte DVD med ekstra SSD/HDD selges løst)
DVDRW brenner
Intel 802.11 a/b/g/n trådløst nettverkskort (Intel Centrino 6235)
Bluetooth

My pc is "Multicom", you've never heard of it probably, i will go see if i can find a manual.

EDIT: Cannot find manual.