I can assure you, I really have tried and I have spent days going round in circles reading all the threads I can find !
I have windows 7 home professional 32bit and an xbox 360, and I just cannot get media center to work.
I have moved from wireless to wired, disabled windows firewall, tried just using a switch instead of my BT Home Hub 3.0
It gets as far as the xbox displaying 'connecting to media center' but the PC comes up with an error was encountered.
The event viewer error message is :
Media Center Extender Setup cannot create an account for the Extender with ID: uuid:10000000-0000-0000-0200-0025AEEBD738.
Error: Only part of a ReadProcessMemory or WriteProcessMemory request was completed.
The event ID is 545
Source : Media Center Extender.
Any help gratefully received ! I've been at it all morning, so I'm popping out for a bit to calm down
But will start again later.
Are there any connectivity issues with the Home Hub 3.0 ? UPnP is enabled.