How to Remove 'DirtyDecrypt' Virus

This virus is not only disables Task Manager and Registry and other system tools, but also to modify the system settings left backdoor Trojan which will bring other security risks.This malware is detected by antivirus software 'AVAST' as virus called: Win32:Crypt-POQ [Trj].
So how can we delete this virus?Follow all steps to remove 'DirtyDecrypt' and clean up your computer.

Learn more about how to remove computer virus at: http://www.removalvideos.com/
Note: take care of these Registry keys: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
[DisableTaskMgr] = [0x00000001]
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
[UACDisableNotify] = [0x00000001]
[AntiVirusOverride] = [0x00000001]
[FirewallOverride] = [0x00000001]
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run