I'm still running MCE 2005 rollup 2 on an XP-Pro SP3 home-built 2006 HTPC.
Running great until unexpectedly, MCE 2005 began to actup:
It won't display my list of OTA TV scheduled recordings
It won't display my list of OTA TV recorded shows
It won't allow playback of dvr.ms files when accessed from the folder in the drive
It changed my saved recoding location to (C:) drive and won't let me change it back to the 1TB (V:) drive.
It still plays direct OTA TV
It still displays OTA TV listing
When tryig to schedule a TV recording I get this message: "The recording could not be scheduled for an unknown reason. Restart Media Center and try to schedule your recording again."
When trying to open and play a dvr.ms recording file I get this message: "Application Failure - A critical Media Center process has failed. Please restart the computer and try again. If the problem persists, contact you hardware manufacturer for assistance."
This has been puzzling me for a few days now. I'm trying hard to not have to reinstall XP all together as I recall having to troubleshoot a bunch of issues over the years...
I'd be grateful for any pointers and how-to instructions for solutions such as editing WMC registry, resetting WMC to its default values, etc...
Have you done a chkdsk on your recordings drive (V:)? Could be disk problems, so I'd actually do this on all drives in your system. Have a look in the Event Viewer as well for any disk errors (might be bad blocks).
Welcome to the forum! Two excellent pieces of advise above. If you go to windows 7 be sure to do a clean install; not a upgrade. If the OS disk is fine try creating a new user, login with it and setup Media Center "fresh".