The most comprehensive document on how to troubleshoot IE Maintenance Policies. Please refer the attachment.
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For IE Crashes and Hangs, the first thing to do is disable Add-Ons. On IE6, you use inetcpl.cpl, Manage Add-Ons from the Program Tab and disable all Add-Ons one by one. On IE7, you can use the iexplore -extoff mode or go to Program Files - Accessories
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