rundll can't load ctor.dll, access denied.

Posted on 2010-01-01
Last Modified: 2012-06-27
I'm trying to install Win 7 (from vista), using the toshiba upgrade assistant, and there are several 'components' that have to be uninstalled.

During the uninstall process, I get a pop up that says:

RunDLL, error loading ...Ctor.dll, access denied.

I tried using a different program (easy uninstaller) to take these programs out, but ran into the same problem with that.

How do I resolve this error and remove these programs?

Thanks,  Chris
Question by:St_Aug_Beach_Bum
    LVL 22

    Expert Comment

    Have you checked the attribute of the ctor.dll? It should only be
    "archive" - and nothing else.
    Also,do you have administrative privileges for uninstall ?
    Also make sure the programs you are trying to uninstall are not running in the background (check services too).Disable all antivirus during the process.
    LVL 40

    Accepted Solution

    According to scat7ter's advice in a Toshiba Support forum, the fix maybe as follows:-
    "I finally managed to take care of the problem. This time I went to the Toshiba Resources Guide (icon on the desktop) Chap 5 Utilities>Toshiba Application Installer. This directed me to Start>All Programs>Toshiba>Recovery>Toshiba Application Installer>Next and picked the application."

    Author Closing Comment

    Thank you!  Got it rolling now!

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