Check md5sum to make sure ISO is genuine. On windows, simply drop ISO on md5sum.exe from here: http://www.etree.org/md5com.html
We recommend using imagewriter (Windows or Linux) for “burning” the ISO onto an USB stick.
Please turn Secure Boot OFF in your BIOS and select non-UEFI boot option from invoking boot menu (usually with pressing F12-key during boot).
If you run Netrunner in a VirtualBox, please use the 32bit version, 1 GB RAM and 10 GB diskspace.