I have tried most of these fixes. After updating to SP3 as part of this and some of the other changes, I no longer have the option to uncheck in MCE/Settings. I uninstalled KB946648, I made the regedit change, I tried the access settings, etc. I updated Messenger to 5.1. My PC is 4 years old, but I have done all the updates all along through Windows Update. When I did the security fixes Aug 17, I stopped being able to use LiveTV. After all these fixes, I no longer see a Messenger failed to open, it just kicks me right out of MCE completely.
It is obvious this is a result of the Aug 14 security releases, but I can't seem to do a system restore either, no matter what date I pick it goes through as if it is going to restore, but then comes up after the reboot saying there have been no changes (there have been at least 3 updates since May when it won't go back any further, but will not restore to a single restore point).
ANY HELP WOULD BE APPRECIATED. I am so frustrated, I have spent so much time trying to get my Live TV back up so I can record.
THANKS.