How to Remove Windows Diagnostic Fake Security Program?

# This article How to Remove Windows Diagnostic Virus is an article in Spyware Removal Instructions, the original author is .You can read more information in the following:


Windows Diagnostic Information:

Windows Diagnostic (also known as WindowsDiagnostic) is a fake computer optimization that comes for the same rogue group as Windows Tool malware. It inherits the similar User Interface and behavior patterns such as infiltration method and the malicious behaviors on the contaminated computer. Windows Diagnostic can infiltrate into your computer via Trojans that exploit software loopholes and system vulnerabilities on your system. Afther the infiltration, Windows Diagnostic quickly configures itself to run automatically with your system. When running, this malware will become very aggressive. It frequently triggers loads of irritating system tray notifications telling you about a variety of hard drive and memory problems on your PC. Of course, this malware will also launch its fabricated scanner whose job is to list many urgent system errors that are not really on your system and make you further brainwashed. In case you attempt to fix all detected errors, you will be taken to a webpage and requested to pay for its authorized version to activate its functions. Remember not to provide your credit card information on such webpage as Windows Diagnostic is a phishing scam. When you try to run an application, Windows Diagnostic will block it and reports that the application or your hard drive is damaged. Don’t give it any chance to further destroy your system. Just remove Windows Diagnostic virus as shown below.

Windows Diagnostic Screenshot:

Manual Removal

Note: If you are not proficient with computer, it’s suggested that you backup your registry before manually removing Windows Diagnostic Rogue Anti-Spyware. And double check the entries that you are going to delete, or your computer can’t work for missing some files.

Step 1: Processes you need to end:


Step 2: Registry entries you need to delete:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “.exe”

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ““

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′

Step 3: Files you need to delete:

%Documents and Settings%\All Users\Application Data\[random]

%Documents and Settings%\All Users\Application Data\[random].exe

%Documents and Settings%\All Users\Application Data\[random].dll

%Documents and Settings%\[User Name]\Desktop\Windows Diagnostic.lnk

%Documents and Settings%\[User Name]\Start Menu\Programs\Windows Diagnostic

%Documents and Settings%\[User Name]\Start Menu\Programs\Windows Diagnostic\Windows Diagnostic.lnk

%Documents and Settings%\[User Name]\Start Menu\Programs\Windows Diagnostic\Uninstall Windows Diagnostic.lnk


Please, be aware that manual removal of Windows Diagnostic Rogue Anti-Spyware is a cumbersome task and can not always ensure complete removal of the malware, due to the fact that some files might be hidden or may get reanimated automatically afterwards. Moreover, lack of the required skills and even the slightest deviation from the instructions may lead to irreparable system damage. That’s why it’s strongly recommended automatic removal of Windows Diagnostic Rogue Anti-Spyware, which will save your time and enable avoiding any system malfunctions and guarantee the needed result.

Automatic Windows Diagnostic Rogue Anti-Spyware Removal:

1. Restart your computer and keep pressing F8 Key before Windows launches. Use the arrow keys to select the “Safe Mode with Networking” option, and then hit ENTER Key to continue.

2. Download Windows Diagnostic Remover, install it and update its database to the latest. After that, restart your computer so as to make Windows Diagnostic Remover fully functional. Repeat Step 1 into Safe Mode and run an Online Scan of your computer so that Windows Diagnostic Remover can detect all potential malware in your system.

NOTE: If you have problem installing Windows Diagnostic Remover, you can download this correction script, unzip it and then double click to run it. It will correct your registry settings that the virus has modified. Then double click the program and finish the installation.

3. After the Online Scan finishes, click “Details” for the malware detected to make sure that your important data are not infected and removed. Ignore or select the scan result and click “Remove” to remove the threats. Reboot your computer and let Windows Diagnostic Remover delete all detected virus.

4. Click to repair your corrupted registry

Why should you need to repair the registry?

As we all know, virus and Trojans modify and destroy system registry and make the computer malfunction so that the computer will not perform normally. Even if the virus and Trojans are removed, the registry is still destroyed or modified, so the computer still has problems. That’s the very reason why you need to repair the registry. At the meanwhile, some virus and Trojans leave some DLL files in the registry and this will cause strange DLL errors and affect the computer performance.

To make your computer run as perfectly as before or much faster than before:
1. Download and install Multi-Awarded Registry Tool.
2. Run a full scan of your registry.
3. Click “Repair Problems” and repair all errors detected.


After these 3 easy steps, your computer will run much faster than before within minutes!

Related posts:

  1. How to Remove HDD Diagnostic Fake Security Program?
  2. How to Remove Hard Drive Diagnostic Fake Security Program?
  3. How to Remove Windows System Optimizator Fake Security Program?
  4. How to Remove Windows Scan Fake Security Program?
  5. How to Remove Windows Disk Fake Security Program?

One Comment

Step by Step Uninstall/remove System Diagnostic virus Removal Guide |  on March 16th, 2011

[…] Diagnostic (aka SystemDiagnostic) is a new fake system optimizer that comes after Windows Diagnostic malware. Based on its aggressive activities on infected computer, System Diagnostic is clasified as […]