It all started like this -
I was trying to watch a movie on laptop (I think the movie software on the site was similar to 'youku', and my laptop suddenly shut down after a short beep. When I restarted and checked the 'microsoft security essentials' anti-virus software without going online, it showed a security threat due to a trojan and was not able to remove it.
I did not go online then; instead as advised by a friend I tried to run combofix from a thumb drive. It almost went well and started to show like 'completed stage 1..2..until 50' and then my system shut down with a windows message that an unexpected error occurred.
I restarted the system and checked my microsoft anti-virus. It's still showing that trojan threat and wasn't able to remove it even after re-starting my system as suggested by its message.
This time, I've saved 'combofix' file on my desktop instead of using it from a thumb drive. I am running it again, but I can see two prominent messages similar to the ones which came when I ran it few minutes ago using thumb drive. One is some thing like the one I posted in the other message..."yahoo\audible\cache\base.us\...Please check with chkdsk utility." The other message is "pev.exe has stopped working. Windows will close the program and notify if a solution occurs." I can't understand what these messages are.
Could anyone please tell me how I can have my system get rid of that trojan and be completely protected?