I upgraded my Vista Ultimate 64 system using Windows 7 Ultimate RTM. Everything is running very nicely, with one exception: I cannot get any of the troubleshooters to launch. As an example, when I try to use the network troubleshooter, I get a popup that says: An error occured while troubleshooting: An unexpected error has occurred. The troubleshooting wizard can't continue. Package ID: Network Diagnostics Path: C:\Windows\diagnostics\system\networking Error code: 0x80131700 Source: Engine User: xxxxxxxx Context Elevated Any ideas about how I might fix this would be greatly appreciated.