Fake Windows Activation Screen Removal Guide

Fake Windows Activation Screen is a Trojan which pretends to be a Windows Activation program. The infected computer will show a screen simulating Microsoft Windows Activation which state that Windows needs to be reactivated. Fake Windows Activation Screen will force users to enter their name, contact information and credit card details to cheat their money. After that, the credit card will be charged.

Removal Guide
Kill Process
(How to kill a process effectively?)
$SYSDIR\.exe

Unregister DLL files
%UserProfile%\Application Data\mtl.dll

Delete Registry
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ""
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System "DisableTaskMgr" = "1"
HKEY_CURRENT_USER\Software\
HKEY_CURRENT_USER\Software\AntiPiracy

Remove Folders and Files
%UserProfile%\Application Data\mtl.dll
$SYSDIR\.exe

Read more:
Constants in manual removal guide