My little Acer laptop had it's old antivirus expire last night so I decided to add ESET Nod32 AV5 to the mix because I had it running on my big laptop. I uninstalled Norton IS2011 with the uninstall tool and re-booted. I installed Nod32 and noticed that it was doing some housecleaning right after installation. I rebooted and noticed that I couldn't boot back into Windows. I used ctrl-alt-del and got the Task Manager running and typed in new task/explorer.exe to see if my task bar would come back. It didn't but I did get an explorer.exe window, so I was able to look at the Nod quarantine and it had taken my explorer.exe/shell loader and put it into quarantine and I'm guessing that is why I was not getting my taskbar and main desktop. Can someone tell me what the solution is for cleaning this Trojan that has attacked the explorer.exe/shell loader without putting it in quarantine. I'm running windows 7 HP x32 on this Acer 5100. What I don't understand is why Nod32 would clean this in such a way as to not be able to boot into Windows.