Friday, October 27, 2006

Windows Update Error - RunAs component at fault

I kept getting an error message whenever I would try to manually install Windows Updates using Tools > WindowsUpdate on a Windows XP computer. On most computers, the update happens automatically through Group Policy from a single server except this one (because of which I realized it does not even have SP1 installed on it). Although, the Automatic Updates is set to automatically install every update I approve on the server, this one computer never got updated. I manually downloaded SP2 and installed it. Didn't fix the problem. I upgraded IE to 7.0. Didn't fix the problem. I realized that even some Group Policy rules did not get enforced on this computer. I don't know why.

When I googled the error message "Updates were unable to be successfully installed", someone mentioned that he had the same problem when trying to install from a administrative "runas" instance of IE from a non-administrative login. But that's how I always did it. Anyway, I logged out and logged in with an administrative account, and voila it installs just fine. I guess some instances of XP have the "runas" component broken.

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