System Diagnostic is nothing more than bogus and corrupt security software that offers virus removal and system diagnostic services that it could not perform in real. The fake System Diagnostic virus belongs to the rogue spywares. Another duplicate of System Diagnostic virus is known as Windows Diagnostic virus that uses a bit different interface but has the same tactics like System Diagnostic to trick users into buying fake system security products.

As we know that the goal of System Diagnostic virus is to sell out fake softwares to innocent internet users, nobody should install or purchase any product related to System Diagnostic. When a computer is infected by System Diagnostic virus, it tries its best to convince user to user System Diagnostic software to get rid of viruses and spywares. To scare user, System Diagnostic runs its fake scanner utility on infected computer and displays some scan results that claim that your computer is infected with spywares and viruses or sometimes it shows error about hard drive or RAM (Random Access Memory) problems. Heres a copy of its fake alerts that it shows on infected user`s screen:

Windows detected a hard drive problem.
A hard drive error occurred while starting the application.

Ram Temperature is 83 C. Optimization is required for normal operation

Remember! All these warning messages and alerts displayed by System Diagnostic virus are fake. This program is specially designed to extort your money by offering you to buy its fake system security and optimization products. You should ignore these warnings, avoid buying this program, avoid its installation and immediately remove it from your computer upon detection.

How to get rid of System Diagnostic virus manually:

To remove this virus manually, complete the following set of tasks. Do not forget to create a backup before getting started to the manual removal guide.

Stop System Diagnostic processes:
[random word].exe

Disable System Diagnostic DLL files:
[random word].dll

Delete System Diagnostic Registry Entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “[random].exe”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “[random]”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations “LowRiskFileTypes” = ‘/{hq:/s`s:/ogn:/uyu:/dyd:/c`u:/bnl:/ble:/sdf:/lrh:/iul:/iulm:/fhg:/clq:/kqf:/`wh:/lqf:/lqdf:/lnw:/lq2:/l2t:/v`w:/rbs:’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments “SaveZoneInformation” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download “CheckExeSignatures” = ‘no’
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main “Use FormSuggest” = ‘yes’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “WarnonBadCertRecving” = ’0′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableTaskMgr” = ’1′

Delete System Diagnostic files:
%AllUsersProfile%\Application Data\~[random]
%AllUsersProfile%\Application Data\~[random]
%AllUsersProfile%\Application Data\[random].dll
%AllUsersProfile%\Application Data\[random].exe
%AllUsersProfile%\Application Data\[random]
%AllUsersProfile%\Application Data\[random].exe

Auto Removal

To remove this virus Automatically, We suggest following tools:

Malware Bytes Anti-Malware

OR

Super Anti Spyware