How I can delete a registry key for viruses?

I have recently been attacked with this fake antivirus virus blocking installation of the Internet by a dead proxy, and so far everything I've done is change the proxy settings in Firefox. I was told to remove the processes that had a lot of puzzles through the Task Manager (one of them was "hqhtnfdsjmo"), but I'm pretty sure it can not be the whole solution, the proxy dead is still there, right? So how exactly do I get rid of it? Also, when I was told to disable startup entries startup processes from the user directory, one called "rqbuoqhq" an unknown manufacturer, is also a record of this virus? And like the former, how do I get rid of it?

Autoruns http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx Displays all log entries beginning … programs, drivers, DLL, shell extensions and much more can enable / disable log entries or be eliminated. Disable if you are unsure about something, when you are unsure then be deleted. Remove or disable the startup entries fake files will stop running antivirus period. Just finished its process in task manager is only temporary. When you reboot the computer process will start again. It also eliminates the false antivirus files. That would use Process Explorer, which provides more information than Task Manager. Hover your mouse over a process and display the file path for that process. http://technet.microsoft.com/en-us/sysinternals/bb896653 not worry about power, having rid of fake antivirus just make sure your LAN settings are set to not use a proxy server.