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Error 1603 is a Windows error. There are several reasons for this particular problem. For example, if you receive an error message related to this problem in Windows XP, you can repair the Windows Installer. Apart from that, if any of the following situations is true, you may also get this error message:

• If the Windows Installer tries to install an application that is already installed on your system, you will get ESET error code 1603.
• Additionally, if the folder that you are trying to install, for example, the Windows installation package may also experience the problem.
• Also, knowing that the SYSTEM account does not have full access to the folder you are trying to install.
• You can see that the error message occurs because of the Windows Installer service.

Symptoms: When the user tries to install the Microsoft Windows Installer package, he may be faced with the problem with the following error message:

“Error 1603: A disastrous error occurred during installation.” So, at this point, if you have to press the OK button in the error message box, the installation process is reestablished.

Solutions For ESET Error Code 1603

If you are already installing antivirus software on your system, you may have problems installing other security software. Additionally, if the user tries to repair the Microsoft Windows Installer package, this error may also occur. Check if the application is already present on your device. If the antivirus application is already present on your device, uninstall it first, then reinstall it.

Secondly, if you are creating the app as a shortcut to your desktop, then also. In such cases, it is likely that the application will continue to install on the PC, which will cause this error when you try to reinstall the application. You can restore the shortcut by searching for the application. If it is found, hold down (or right-click) the application and select Pin at Start. You can also solve the problem by uninstalling and reinstalling the application. To search for and uninstall apps in Windows 10:

1. On the Start menu, select the
2. In Settings, select System and then click on the Apps and features option.
3. If the app is listed, then this is, select it and then select Uninstall.
4. Follow the directions on the screen.

Install Packages

• At first, you need to install the packages to a folder which are not encrypted.
• Now, you need to install the package to a drive which you are not using as a substitute drive. You need to use this method if you receive an error message.
• You can now “Grant Full Control” permissions to the SYSTEM account which you are using. However, you need to use this method if you receive the error message because the SYSTEM account which you are using does not have Full Control permissions on the folder which you are installing.