Windows 7 fails to install

"When you hit a failure during a Windows 7 upgrade (and it rolls back to the original system), it would be helpful to share out and/or look at \$windows.~bt\sources\panther\setupact.log. (The setuperr.log file that you shared contains a filtered view of the full log file.) Also, you should look to see if there are any ""dump files"" (with extension .dmp) anywhere under the $windows.~bt\sources folder; it's possible that some device driver installed on your system caused the computer to blue-screen during the upgrade process.

Update: Loading up the attached dump file in WinDbg shows the problem to most likely lie in viahduaa.sys. A quick search on the web shows that it's some sort of audio driver, possibly distributed by VIA. My recommendation would be to first see if there's an update available for that driver (and install the update before upgrading). If that doesn't work, you might be able to see if you can forcibly uninstall the driver (and make sure it gets deleted from your system) before upgrading. Once the upgrade goes through successfully, you can worry about making sure you have the right audio drivers again."

I seem to be experiencing the same problem. After doing some research on the "failed to find driver path" message in setuperr.log, I tried uninstalling a few non-essential drivers. This lessened the enumerated count I had from 17 to 15. Looking at my setupact.log, I found the device IDs associated with the errors (to find it quickly, copy/paste each error listed in the setuperr.log into "find" in setupact.log--it seems to be a direct parse). I'm going to attempt to uninstall each of the erroneous drivers tonight and try to update again. I'll let you know how that goes. With any luck, Windows 7 will fully update once all of these errors are cleared.