Quick Heal Total Security Error 1603: Easy Fixes To Remove Antivirus Issues Instantly

Windows users can come across Quick Heal Total Security error 1603 while attempting to run this program or install any other antivirus software. Sometimes, this issue can also pop-up if you are trying to load any application while the Quick Heal Total Security is running in the background. However, in many cases, the problem can be totally independent of any security program and solely depends on Windows Installer service. To find out more about this error code 1603, you can go through this article and learn its main causes. If you are experiencing this error while running the Quick Heal program, keep reading this article to know the solutions.

Why your PC is Showing Quick Heal Total Security Error 1603?

If your device has been affected by the Quick Heal Total Security error 1603, it can be an annoying issue. When this problem hits your system, the complete protection features of this software will get turned off on its own. So, if you are thinking about what might be the factors to cause this error, check out the following points.

Registry Issues

There can be invalid keys for error 1603 in form of Windows registry data for Quick Heal Total Security. This can mostly occur when you try to wrongly edit the registry entries and harm your system. Hence, if any such issue is taking place in your PC, it can further lead to this error code 1603.

Virus and Malware

In case, your computer is infected with critical malware or viruses, it can remove many important programs. So, if somehow, such damage has taken place and it has corrupted Quick Heal, it can generate 1603.

Wrong Update or Quick Heal Version

According to a majority of Windows users, they are experiencing error code 1603 after installing a buggy update. So, if you have downloaded the wrong version of Windows Update or applied an incorrect one, it can cause 1603.

You can also receive this error message if you have installed Quick Heal Total Security that is already corrupted. This error can usually occur when you have downloaded antivirus software from unreliable resources or websites.

Internet and Other Issues

While installing the program online or updating Quick Heal Total Security, the internet connection can go missing. So, if your system ends up having an incomplete installer program, it can produce 1603.

On some Windows-based devices, having another security software along with Quick Heal Total Security can also cause this error.

Many times, the error 1603 can appear on your PC because of issues with Windows Installer and not the Quick Heal program.

How Can you Fix Quick Heal Total Security Error 1603 in your Computer?

If you don’t want to tolerate the annoying problem of Quick Heal Total Security error 1603 anymore, try the following solutions.

Solution 1- Close or Disable Programs Conflicting in your System

Since the issue of Quick Heal Total Security 1603 is a runtime error, it can happen due to conflicts between the programs. Hence, the best method to deal with this situation is to stop these applications on Windows.

To apply this fix, first, press Ctrl, Alt and Delete buttons altogether on your keyword. Then, wait for ‘Task Manager’ window to appear and go through the list of programs running on your PC.

Now, hit the ‘Processes’ tab and select the conflicting programs which can cause error 1603. In case, you are not aware of them, you can consult a Windows professional to select these processes. So, after clicking on each one of this program, right-click on it and select ‘End Process’.


If there is more than one conflicting software, you need to end the process and see the error status every time. So, by repeating the above steps for each program, you can easily know which one is causing 1603 error.

Next, you can either fix the error with some technical method or by uninstalling the conflicting application. After this, you can visit a proper website or a reliable software provider to reinstall the program. Hopefully, the error code 1603 will not appear anymore while launching Quick Heal Total Security.

Solution 2- Install Runtime Libraries to Fix Microsoft Installer Issues

As already discussed in the causes, the error message about 1603 can also occur due to corrupted Microsoft Installer. Hence, if you are sure about this issue and there is nothing to do about Quick Heal Total Security, apply this method.

You need to verify that error code 1603 is occurring because of missing MS Visual C++ files. Only after confirming it, you should uninstall the active installer package and reinstall a new version.

So, you can open ‘Control Panel’ on Windows by typing the name in the search box. Then, go to ‘Programs and Features’ and find the program for ‘MS Visual C++’ and click on it. After that, select the ‘Uninstall/Change’ option and follow on-screen instructions to remove the program. You can also repeat the same procedure for other runtime library files, which can cause 1603.

Solution 3- Restart Microsoft Installer Service and Re-register it on Windows

If the Quick Heal Total Security error 1603 is occurring due to problems in Microsoft Installer service, try this solution. Here, you can apply the following steps in order to restart the service of Microsoft Installer and register it once again.

So, hit the Windows logo and R buttons at the same time and wait for the Run dialog box. After that, type ‘services.msc’ in this box and click on the ‘OK’ button. It will give you access to the Windows Services (Local) window, where you can view the programs list on your PC.

Now, you need to navigate to the ‘Windows Installer’ services and double-click after selecting it. Then, view the Service status on the next window and hit the ‘Start’ button. Finally, save these settings by clicking on ‘OK’.

However, if you find the Windows Installer service already running on your system, then hit the ‘Stop’ button. After that, follow the above steps for restarting this program and to fix Quick Heal Total Security error 1603.

Next, for re-registering Windows Installer service, open the Run dialog box by hitting Windows and R buttons. Then, type in the text space ‘msiexec/unregister’ and hit the ‘OK’ button.

After this, type ‘msiexec/regserver’ in the Run dialog box and press the ‘Enter’ key. Hopefully, now your Windows will no longer display error code 1603 whenever you attempt to update or install Quick Heal Total Security.

In case, you are unable to troubleshoot Quick Heal Total Security error 1603 by following the above methods, get in touch with an expert.

Maria Colombo
Maria Colombo
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