Here's a trip for you.
I'm running Vista Home Premium 64-bit and everything was running well. I upgraded my processor from an AMD X2 5000 to a Phenom 9850. Now, any time I try to start Windows Media Player, It loads, I see the library for a second before it hazes over and I get the "Windows Media Player has quit working" window. It happens any time I try to start WMP and sometimes just when I boot my computer and suddenly I get the "WMP has quit working" without even starting it. I can't even use Windows Media Center without it locking up.
I ran that SFC. It reported that some files were corrupt and created a log, but when I try to view the log I get the "You don't have permission to view this" window. Yes, I verified that I am running as an administrator.
I tried loading the 64 bit Codec, but I'm beginning to wonder. I read above where you speak of 64 bit WMP and 32 bit WMP, I don't see a WMP (64 bit) like I see Internet Explorer (64 bit). Does that mean I'm only running WMP 32 bit?
Also, Any attempt to download and re-install WMP will not run. I keep getting the "Your version is newer than what you are trying to install" warning and then it quits.
Am I doomed to re-install Vista (repair)?