There have been reports of some Windows 7 beta testers experiencing installation errors with Windows Update and third party applications like Java and Flash (crashes of Explorer and MSI-based installers). This may be an issue related to the Customer Experience Improvement Program client (CEIP also known as SQM). If you are experiencing this try the fix outlined below. Any machine that?s currently not affected by this problem does not need this fix, nor will future installations or upgrades.
Detailed instructions: 1. Select and copy the following to your clipboard: reg delete HKLM\SOFTWARE\Microsoft\SQMClient\Windows\DisabledSessions /va /f 2. Click on “Start”, then “All Programs”, then “Accessories”