i am having the same problem, (my computer getting shutdown thru RPC ) (same exact warning message ) also had the same problem getting to my task manager , it opens the closes right away( to fix that just rename your taskmanager to something else ), also the wbdav.exe file on the startup menu , and the tftp temp file trying to load on start ( the tftp is Trivial File Transfer Protocol tftp.exe in windows )
I did a little digging and i found a temp fix for this problem..
in your control panel, go to administrative tools then to components services. then under the folder on the left you will see something that says Services ( local )
then on the right hand side scroll down to the "remote procedure call" highlight it right click and go to properties, then you can choose what happens when your rpc has a problem. it is automatically set to reboot in 30 seconds or something, but u can set it to do nothing or to run a program or a command line .
Im hoping this works (it has so far ), if it works for you tell me..
i have run thru my computer pretty good and no virus yet so i have no idea what it is, i ran my computer at
www.antivirus.com on the fresh virus def's ??