PC Security Guardian

This page is about PC Security Guardian. Included are description and removal guides to help you delete the malware from an infected PC.

PC Security Guardian virus will claim itself as a security program. However, security experts find this program fake after running a thorough diagnostic test. It does not have the means to perform computer protection neither virus removal. Its involvement in the circle of bogus security software makes sense why it needs to be removed from the computer in no time.

Showing fake scan results combined with pop-ups of false alert messages is another thing why PC Security Guardian should not be trusted. It will tweak Windows registry to perform its malicious actions and gain control on system performance. Presence of PC Security Guardian will prevent execution of software. To cause more troubles, this malware will halt the presence of legitimate security programs. Thus, the affected system becomes more vulnerable to subsequent attacks.

Have you wonder how this malware got into your computer even with the presence of an anti-virus program? It uses a special technique called rootkit. It will enable embedding of its own code onto legitimate system process. Malware will remain invisible to security software that is installed on victim’s computer. Contracted system will experience average to severe annoyances like excessive display of alerts, redirecting of Internet browser and malfunction of Windows tools like task manager and control panel. To work around with this problem, it is a priority to remove PC Security Guardian. Getting rid of this fake program completely will bring back computer to its normal working state.

Screenshot Image:

Damage Level: Medium

Systems Affected: Windows 9x, 2000, XP, Vista, Windows 7

Technical Details and Additional Information:

Malicious Files Added by PC Security Guardian:
%AppData%\Application Data\PC Security Guardian\cookies.sqlite
%AppData%\Application Data\PC Security Guardian\Instructions.ini
%Documents and Settings%\All Users\Application Data\[random]\[random].exe
%Documents and Settings%\All Users\Application Data\[random]\[random].mof
%Documents and Settings%\All Users\Application Data\[random]\[random].dll
%Documents and Settings%\All Users\Application Data\[random]\[random].ocx

File Location for Windows Versions:

  • %UserProfile% for Vista/7 user is C:\Users\<Current User> for Windows Vista/7, for Windows XP/2000 this is C:\Documents and Settings\<Current User>
  • %AppData% for Vista/7 refers to C:\Users\<Current User>\AppData\Roaming, while for Windows XP/2000 user it is C:\Documents and Settings\<Current User>\Application Data

PC Security Guardian Registry Entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “PC Security Guardian?
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options “Debugger” = “svchost.exe”
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download “RunInvalidSignatures” = “1?
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “ProxyServer” = “http=

How to Remove PC Security Guardian

Systematic procedures to get rid of the threat are presented on this section. Make sure to scan the computer with suggested tools and scanners.

Step 1 : Scan the computer with recommended removal tool

1 First thing you should do is reboot the computer in Safe Mode with Networking to avoid PC Security Guardian from loading at start-up.

NOTE: You will need to PRINT or BOOKMARK this procedure, as we have to restart the computer during the removal process.

Remove all media such as Memory Card, cd, dvd, and USB devices. Then, restart the computer and please do the following:

Boot in Safe Mode on Windows XP, Windows Vista, and Windows 7 system
a Before Windows begins to load, press F8 on your keyboard.
b It will display the Advanced Boot Options menu. Select Safe Mode.

Start computer in Safe Mode using Windows 8 and Windows 10
a Close any running programs on your computer.
b Get ready to Start Windows. On your keyboard, Press and Hold Shift key and then, click on Restart button.
c It will prompt you with options, please click on Troubleshoot icon.
d Under Troubleshoot window, select Advanced Options.
e On next window, click on Startup Settings icon.
f Lastly, click on Restart button on subsequent window.
g When Windows restarts, present startup options with numbers 1 - 9. Select "Enable Safe Mode with Networking" or number 5.

Startup Options

h Windows will now boot on Safe Mode with Networking. Proceed with virus scan as the next step.

2 Download our malware removal tool and save it on your Desktop or any location on your PC.

Download Tool

3 Click on the button to start downloading our recommended anti-virus tool. Save it to an accessible location inside your hard drive or clean USB drive if you are downloading from a different PC.

4 When finished downloading, locate and double-click the file to install the application. Windows' User Account Control will prompt at this point, please click Yes to continue installing the program.

5 Follow the prompts and install as 'default' only. There are no changes needed during the installation process.

6 Malwarebytes Anti-Malware will launch for the first time. It is necessary to proceed with software update.

7 After downloading updates, please click on Scan Now button.

8 The tool willl run Threat Scan to ensure that it thoroughly check the PC for any presence of PC Security Guardian and other forms of threats.


9 Once the scan has completed, Malwarebytes Anti-Malware will issue a list of identified threats. Mark all threats and click on Quarantine Selected.

10 If it prompts to restart the computer, please reboot Windows.

Step 2 : Ensure that no more files of PC Security Guardian are left inside the computer

11 Click on the button below to download Norton Power Eraser from official web site. Save it to your desktop or any location of your choice.

NPE Download

12 After downloading, navigate its location and double-click on the NPE.exe file to launch the program.

13 Norton Power Eraser will run. If it prompts for End User License Agreement, please click on Accept to proceed.

14 On NPE main window, click on Advanced Scans. We will attempt to remove "PC Security Guardian" by thoroughly scanning your current operating system.

Advance Scan

15 On next window, click System Scan to perform standard scan on your computer.

Scan the System

16 NPE will proceed with the scan. It will search for Trojans, viruses, and malware like PC Security Guardian. This may take some time, depending on the number of files currently stored on the computer.

17 When scan is complete. All detected risks are listed. Click on Fix Now to remove PC Security Guardian and other known threats. Then, restart Windows if necessary.

Step 3 : Remove the Rootkit Trojan that installs PC Security Guardian

Rootkit Remover is a stand-alone utility developed by McAfee. It can be used to detect and remove rootkit Trojan that is associated with PC Security Guardian. This tool can detect rootkit that is part of ZeroAccess, Necurs, and TDSS family.

18 Download Rootkit Remover and save it to your desktop or any accessible location. Click the button below to begin the download.

click to download

19 Locate the file rootkitremover.exe and double-click to run the program.

20 When User Account Control prompts if you want to allow the program to make changes on the computer, please click Yes.

Rootkit Remover Scan

21 Rootkit Remover instantly scans the computer and look for presence of Trojans, viruses, and rootkit that is related to PC Security Guardian .

22 Once it finishes scanning the computer, the tool will require you to restart Windows.

Alternative Removal Procedures for PC Security Guardian

Use Windows System Restore to return Windows to previous state

During an infection, PC Security Guardian drops various files and registry entries. The threat intentionally hides system files by setting options in the registry. With these rigid changes, the best solution is to return Windows to previous working state is through System Restore.

To verify if System Restore is active on your computer, please follow the instructions below to access this feature.

Access System Restore on Windows XP, Windows Vista, and Windows 7

a Go to Start Menu, then under 'Run' or 'Search Program and Files field, type rstrui.
b Then, press Enter on the keyboard to open System Restore Settings.


c Windows will display list of saved restore points. Select the most recent one to restore Windows to previous working and clean state.
d It may take some time to fully restore back-up files. Restart Windows when done.

Open System Restore on Windows 8 and Windows 10

a For Windows 8 user, go to Start Search, while on Windows 10, use the Start Menu Search and type rstrui.
b Click on the located program to open System Restore window.


c Windows will display list of saved restore points if it is active. Select the most recent one to restore Windows to previous working and clean state.
d It may take a while to fully restore back-up files. Restart Windows when done.

If previous restore point is saved, you may proceed with Windows System Restore.

Troubleshooting Guides

Did PC Security Guardian blocks your Internet access?

It is usual that rogue program prevents user from downloading removal tools from the Internet. Thus, infected computer may be denied to access the Internet by making changes to computer's proxy, DNS, and Hosts file. To solve Internet connection problem, please see our guide in fixing a virus-blocked Internet access. Also, make sure that your Windows Host File is free from any malicious entries. View steps in cleaning Windows host file.


About Marco Mathew

Marco Mathew works as Windows Network administrator before establishing precisesecurity.com. Now, Marco is dedicating full-time to help computer users' fight viruses, malware, trojan, worms, adware, and potentially unwanted programs.


  1. AvatarRemove PC Security Guardian

    thank you sooo much…..u saved me the trouble and time of taking my pc to the store……thanks a million….all ur steps work and did fix my problem!!

  2. AvatarRemove PC Security Guardian

    Thank you so much, you’ve saved me a whole lot of trouble. Very easily explained and it’s totally gone from my computer as well as tons of other stuff my former anti-virus program couldn’t catch.

  3. AvatarJulia walden

    all I want to say is PC SECURITY GUARDIAN I WANT MY MONEY RETURNED TO ME. I paid for your product expecting a honest company not a FAKE one I live on a limited income and the computer helps me stay connected to friends and family. I TRUSTED YOU!!!there should be someone that I can contact to get my money back.

  4. AvatarJulia walden


  5. AvatarSinesipho

    thanx so much! you’re a lifesaver!

  6. AvatarLloyd Harrison

    If I can’t find this entry ”HKEY_CLASSES_ROOT\PersonalSS.DocHostUIHandler” (but I can find the others), does it mean it’s not there.

  7. AvatarHaley

    I think they found a way to block ur task manager because i cant even get it to open

  8. AvatarPierre

    I have the same problem as Haley… I cannot open Task Manager. Is there a way get to task manager before PC Security Guardian has a chance to gain control of it ???

  9. AvatarjunGman

    Haley & Pierre, go to the system32 folder on your computer, look for a file named taskmgr and copy paste it so that you get a file named copy of taskmgr, then rename it to anything you like and you should be able to start taskmanager via the run command, just type the name you used for the copied taskmanager file and click OK. It worked for me.

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