Resetting old MacBook Air to factory defaults I got an old MacBook Air. I know very little about it, because I got it as a workstation in a new job and nobody has any info about it.

I'm also a Mac newbie. These are the specs: it's running Snow Leopard, it has 128GB SSD, Core 2 Duo 1,86 GHz CPU and 2GB RAM.

I'm trying to factory reset it but don't know how.

Which MacBook edition is it? 2010 or 2011? How do I factory reset it? There is no USB in the box, just some CDs (and the computer doesn't even have an optical drive).
The simplest manner would be to use the Air's Remote Disc functionality to re-install the OS using an erase and install.