BSOD crash when using Media Centre on Windows 7 64bit

Is this a USB tuner card? If so I'd suspect an incompatibility between the device/drivers and Windows.
What is the exact make and model of the card? (see below if it was picked up by the dump file analysis)

The single memory dump file blames usbport.sys - a Windows file.
Windows files aren't usually to blame (they're 4th in my list of possibilities - 3rd party drivers, incompatibilities, hardware issues, Windows issues) so we look at them last.
Since 3rd party drivers are the most common reason - and the STOP 0xA error that you got is most often caused by 3rd party drivers - we need a tool to force the 3rd party driver to reveal itself (if possible).

That tool is Driver Verifier. Please run it according to these directions:

Using Driver Verifier is an iffy proposition. Most times it'll crash and it'll tell you what the driver is. But sometimes it'll crash and won't tell you the driver. Other times it'll crash before you can log in to Windows. If you can't get to Safe Mode, then you'll have to resort to offline editing of the registry to disable Driver Verifier.

So, I'd suggest that you first backup your stuff and then make sure you've got access to another computer so you can contact us if problems arise. Then make a System Restore point (so you can restore the system using the Vista/Win7 Startup Repair feature).

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

Reboot the system and wait for it to crash to the Blue Screen. Continue to use your system normally, and if you know what causes the crash, do that repeatedly. The objective here is to get the system to crash because Driver Verifier is stressing the drivers out. If it doesn't crash for you, then let it run for at least 36 hours of continuous operation (an estimate on my part).

Reboot into Windows (after the crash) and turn off Driver Verifier by going back in and selecting "Delete existing settings" on the first page, then locate and zip up the memory dump file and upload it with your next post.

If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.

If that doesn't work, post back and we'll have to see about fixing the registry entry off-line:

Code:

Delete these registry keys (works in XP, Vista, Win7):
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDrivers
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDriverLevel

More info on this at this link: Using Driver Verifier to identify issues with Windows drivers for advanced users

Interestingly, the only older driver that revealed itself in the memory dump is AF15BDA.sys (Tue Nov 20 05:19:55 2007) - a component of the DigitalNow TinyTwin DVB-T Receiver. Please update that driver from the manufacturer's website immediately: DigitalNow

Summary of the BSOD:

Code:

Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Debug session time: Sun Jun 13 08:05:26.024 2010 (UTC - 4:00)
System Uptime: 0 days 2:35:36.085
BugCheck A, {fffff8800d3c4ff8, 2, 1, fffff8000361702e}
Probably caused by : USBPORT.SYS ( USBPORT!USBPORT_Core_iCompleteDoneTransfer+45f )
BUGCHECK_STR:  0xA
PROCESS_NAME:  System