A week ago, my AVG anti-virus program kept reporting the threat of Trojan horse generic29 AHHS every few minutes. I tried to use the AVG anti-virus program to delete this computer virus, however, AVG virus removal tool failed to clean it out of the infected computer completely. Every time, the scan seemed to successful, however, when I restarted the infected PC after the scan, Trojan horse generic29 AHHS popped up again, I think AVG virus removal tool can just pick it up, but this computer infection is too stubborn and can not be removed by automatically scans.
As a result, I searched in the internet and tried and manual removal guide.
Firstly, I restarted my PC into safe mode with networking. For doing that, you must hit F8 key repeatedly when the PC booting up. And then use the arrow key to highlight Safe mode with Networking option and hit enter key.
Here is the screenshot of this step
Secondly, I ended all the running processes of Trojan Horse generic29 AHHS in my PC from the Task manager.