Cannnot remove trojan.patchep!sys

Hi Quads,

 

I'm not sure how I ended up getting this trojan.patchep!sys virus on my computer, but I, like the other members, cannot remove this on my own.

 

I currently have a Sony Vaio VPCSC31FM with a 64-bit OS and running Windows 7. I have tried using the Norton Eraser, and have installed the Norton Bootable Recovery Tool, but am on vacation & don't have access to any external media.

 

I was toying with whether or not paying $149.99 to have Geek Squad remove it, but before spending the money, I thought maybe you might be able to walk me through the steps of manual removal to see if there's anything I can do.

 

Thanks so much for your help.

 

 

 

[edit: Clarified subject.]