Since your computer is locked by FBI Moneypak virus, you have to delete the virus manually with professional computer knowledge. This happened to my computer and this is how I got it off

Step A: Restart your computer in safe mode. To do this, please press F8 key before the system is started like this:

Step B: Press Ctrl+Alt+Del keys to open the Task manager to stop the progress of this scam malware virus. Because the name will be changed fast, it will be show with different name.

Step C: Delete all the files related to this scam ransomware virus

Step D: Delete the ransomware Virus register entries created in computer system.

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download “RunInvalidSignatures” = “1?
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Internet

Step E: Remove malicious files
%Documents and Settings%\All Users\Application Data\[random]\
%Documents and Settings%\All Users\Application Data\[random]\[random].exe
%Documents and Settings%\All Users\Application Data\[random]\[random].mof