Hku\s-1-5-21 trojan virus

my windows 7 pc has been infected with the hku\s-1-5-21 trojan virus/malware
avg did not stop it I have tried every  way to remove but no program works

please advise how to  remove even manually ie regedit etc thanks

Brian,
We sincerely apologize for any inconvenience this may have caused you. Could you provide us the screenshot http://avgclick.me/getscreenshot of the AVG detection and the error message you are getting while trying to remove the threat? Not to worry, once we received the screenshot, we will check and help you further. Thank you!

Brian, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru

Brian,
We sincerely apologize for any inconvenience this may have caused you. Could you provide us the screenshot http://avgclick.me/getscreenshot of the AVG detection and the error message you are getting while trying to remove the threat? Not to worry, once we received the screenshot, we will check and help you further. Thank you!