System: Windows 7 SP1 x64 and i86
IE 11 fails to launch from Guest account
I have tried resetting IE to default, running SFC, uninstalling and reinstalling IE 11 (still fails both before and after updates are applied). I've traced the startup with ProcMon and it is launching, but something causes it to close down before the UI appears.
IE 10 does not have this problem. Neither does the current version of Chrome. Current work around is to use Chrome unless IE is required for a site, then IE 10.
More info available at: http://answers.microsoft.com/en-us/ie/forum/ie11-windows_7/guest-account-cannot-successfully-launch-ie-11/24ab5693-ac5c-474d-8ba5-58296b141c71.