[hazeh]

Whats uefi? How do i know of it supports? The mobo?
Ive got an asrock a75m mobo.. And a crucial m4 ssd...
Where can i find the retail?

It's essentially a replacement for the BIOS. On a traditional motherboard it takes several seconds before the computer even starts booting because the BIOS is POSTing. (POST = Power On Self Test)

With UEFI it pretty much starts booting instantaneously.

Looks like your motherboard does support UEFI. It's possible that you will have to enable it somewhere, because I think most motherboards defaults to using BIOS even if it supports UEFI.

I've got two UEFI machines at work that I tested with win8, neither seem to POST any quicker than any other machine I've used.
and... if anything, the HP desktops we have seemed to have slowed down since switching from a traditional bios - The almost instant POST was one of the best things about them!

I guess that just because an old bios needs decrypting etc doesn't mean it's slow, just as a new uefi machine doesn't necessarily boot fast.
There's HUGE variance between motherboards, I wish average post time was on the spec sheets - Especially for some of these (often aimed at htpc?) small form factor boards.