How to unlock computer from Mandiant U.S.A. Cyber Security Virus warning screen? Unlock guide: This article is going to show you how to remove Mandiant U.S.A. Cyber Security Virus finally and easily. It is so lucky that you find these guides and haven’t sent your money to the hackers. Obviously, if you have violated any laws, the police would contact you personally instead of sending a warning message and asking for your money. You want a refund for your money? That is no way! The Mandiant U.S.A. Cyber Security Virus cheats your money time and time again and will never unblock your computer just keeping pops-up the fake message on your computer. To remove Mandiant U.S.A. Cyber Security Virusmalwarescam, you can follow the removal instructions as below: br 1.Start your computer in safe mode. Click Start, then click Shut down. Select Restart and click OK. During your computer starting process press F8 key on your keyboard multiple times until Windows Advanced Options menu shows up, then select Safe mode with networking from the list and press ENTER. If malware does not load, run MSConfig and disable all startup entries. br 2.If Malware does load, reboot into safe mode with command prompt br 3.Run Regedit and search for Winlogon br 4.Remove the parameter “Shell” from the registry entry HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon Once you found the Mandiant U.S.A. Cyber Security Virus file name (something from Application Data), search for it in registry and remove. br 5.Remove the files that were created by this ransomware program: br APPDATAmsconfig.dat br APPDATAmsconfig.ini br TEMPerror.png br TEMPheader.jpg br 6.Search for all related registry entries infected by Mandiant U.S.A. Cyber Security Virus and wipe them out: br 7.HKEYCURRENTUSER\Software\Microsoft\Windows\CurrentVersion\Run “.exe” br HKEYCURRENTUSER\Software\Microsoft\Windows\CurrentVersion\Run “” br HKEYCURRENTUSER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “CertificateRevocation” = ’0′ br Mandiant U.S.A. Cyber Security Virus File Location Notes: br UserProfile refers to the current user’s profile folder. By default, this is C:\Documents and Settings\ for Windows 2000XP, C:\Users\ for Windows Vista7, and c:\winnt\profiles\ for Windows NT. br AllUsersProfile refers to the All Users Profile folder. By default, this is C:\Documents and Settings\All Users for Windows 2000XP and C:\ProgramData\ for Windows Vista7. br If you failed to remove Mandiant U.S.A. Cyber Security Virus, please contact YooSecurity experts for instant help.