The quickest and easiest way to fix this is to contact "Virus removal service" linked under the "Useful links" at the top of the page.
Moved to Malware Discussions. McAfee's RootkitRemover has enhanced Zeroaccess removal capabilities and links to it and other tools are shown in the last link in my signature below.
There should be a free way of sorting this out other than the paid Virus Removal Service, whilst the latter being very convenient, not all can afford it.
By the way, try saving the file as a different name to your desktop, or even try it in "Safe Mode with Networking".
Could you update the current status of the issue?