1. #1
    Unregistered

    Getting error codes 2503 and 2502 when installing or uninstalling certain programs on Windows 7

    It is possible to install or uninstall some programs like QuickTime, iTunes etc. using my PC running on Windows 7. Whenever I try to do that, I am getting the error codes 2503 and 2502. How can I fix this error?

  2. #2
    sarvarayudu Array
    Join Date
    Feb 2013
    Location
    india
    Posts
    44

    Re: Getting error codes 2503 and 2502 when installing or uninstalling certain programs on Windows 7

    Unregister Windows Installer, and then reregister Windows Installer. To do this, follow these steps:

    1. On the "Start" menu, click "Run.

    2. In the "Open" box, type "msiexec /unreg", and then press ENTER.

    3. On the "Start" menu, click "Run".

    4. In the "Open" box, type "msiexec /regserver", and then press ENTER.

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