While you try to install Comodo antivirus or update the already existing version of Comodo antivirus on your computer, you may encounter the ‘Cannot install Comodo Antivirus Error 1603’. There can be many reasons for this error to occur during the installation.It may be due to an incomplete or corrupt download of the installations files, corrupted registry entry on your Windows computer, or viruses on your computer that might have corrupted or deleted your installation files. If you face the Error 1603 while installing the Comodo antivirus on your Windows computer, then try any of the given methods to solve it.
Since the ‘Cannot install Comodo Antivirus Error 1603’ can arise due to the conflicting programs running on your computer while you install the Comodo antivirus, try to end the other conflicting programs running on your computer by going through the below steps.
If you are trying to update the existing Comodo antivirus version on your computer, then try to uninstall the earlier version and reinstall Comodo antivirus again. The steps to uninstall the previous version of Comodo antivirus is given below.
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