This error message occurs when you attempt to install a new application; it is a generic term that can be caused by several issues.
The most common cause of this error is that junk files are cluttering up your computer and you need to free up space on your hard drive. Read this post about various tools you can use to clean up your computer and remove unneeded files and applications.
Try the following steps to resolve the problem
Stop all running programs as they may interfere with the installation process.
It is often caused when there is not enough space on the hard drive, free up hard drive space using the Disk Cleanup utility in windows.
- Right click C: drive, properties, tools, disk cleanup.
The Temp directory is not clean or it is full, delete all temporary files.
- Navigate to C:\tmp and make sure there are no files in this folder.
Make sure you have administrative privileges on the system account; some files may be locked and cannot be overwritten.
- Read the following pages to find out how to get administrator privileges.
Windows Vista: http://support.microsoft.com/kb/555910
Windows XP: http://www.microsoft.com/windowsxp/using/setup/tips/advanced/adminaccount.mspx
If you are on a corporate computer and the system administrators is unable to grant you administrator privileges due to company policy, forward them to the following site to learn how to create an installation that always installs regardless of User Privileges.
Finally, there may be traces of files from a previous uninstall left behind on the computer.
- Run a registry cleaner to check your registry for errors and remove any invalid or corrupted registry entries left behind by previous uninstalls.
Note: The Fatal Error 1603 is a very generic error message and only indicates that something went wrong during installation and can be caused by numerous issues, if the above steps does not resolve the issue contact Microsoft technical support or the vendor of the program you wish to install and request a solution.
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