Windows 8 BSOD

It happens a lot when I go idle for more than 5-10mins.

Any fixes? I'm sure it's one of my drivers. If not, then help would be appreciated.

Repair Windows 8 Using OS DVD/CD

Yeah I don't own one of those.

Welcome
Without luck it is impossible to give a definitive answer to a BSOD without several reports and you gave us only one.

Iastor.sys file description

Productname:
Intel Matrix Storage Manager driver

Description:
Intel Matrix Storage Manager driver

Company:
Intel Corporation

That one indicates a driver, go to company website and update driver