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What is McAfee Virus Scan Error 1603

The users of McAfee antivirus may have encountered Virus scan error 1603 while installing the McAfee antivirus in their computer system. This is caused due to incomplete installation or corrupt download of the antivirus software. This error can crash the active program window and it can also crash your computer system when you try to run the same program

The error 1603 can slow down the performance of your computer system. The error 1603 can be caused due to the changes made by the McAfee antivirus. With the changes that you have made the computer system may show error 1603 and because of this error, the window may respond slow and also may give slow input to the keyboard and mouse.

Sometimes, this error can freeze your computer system for a few seconds. The error 1603 can also be caused due to malware or malicious viruses that have damaged the McAfee Virus Scan related files and other important files.

Procedure for solving the McAfee Virus Scan Error 1603

To resolve the McAfee Virus Scan Error 1603,you are recommended to follow the below mentioned steps in the same order to avoid any problems. The given steps require some technical skills so if you are not technically sound then you are advised to ask online technical experts for help to complete the difficult steps. Follow the below-mentioned steps to resolve the McAfee Virus Scan Error 1603.

  • The first is to make sure you have proper internet connectivity.
  • Make sure the windows registry which is associated with error 1603 is repaired.
  • Before you start the process, ensure to scan your computer system properly.
  • Remove all the junk files with the help of Disk Clean-up.
  • Update the latest version of device drivers.
  • Undo all the recent changes with the help of Windows System Restore.
  • Now, in the next step uninstall the McAfee Virus Scan and then reinstall it again.
  • Start the “Windows System File Checker”.
  • Now install all the latest versions of Windows Updates.
  • If the above-mentioned steps aren’t working then you can perform the clean installation of Windows.

If you are still having any trouble then you can contact the technical expert of McAfee. You can contact them at