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While running an InstallShield based installer, my Windows 7 machine became unresponsive. After forcing a reboot, I can log in to the system, but explorer does not run.

I can log in as a different user without issue and when I change UAC to its lowest setting, I can log in as the user that was performing the install. However, if I re-enable UAC, I am unable to get explorer to run again on login.

I have checked the HKCU\Software\Microsoft\Windows\CurrentVersion\Run and HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce, but don't see anything that isn't configured to run on startup.

I completed the installation of the software as the "good" user without issue.

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This is very strange behavior. You should try to set the user to an "Administrator" if they are not already. What sort of software are you installing? It may be a corrupt user profile in that case follow the Microsoft kb and migrate the user to a new account

Good Luck


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I'd also suggest running SysInternals Autoruns to see if there is anything else loading that is potentially causing this problem, perhaps it was related to the installer you ran: – Ruairi Fullam Jul 6 '11 at 0:43

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