I've been using Visual Studio 2010 for over a year now to work on XNA games for the Windows Phone 7. Just today it started crashing every single time it loads. If I load the game I'm currently working on it will crash. If I just open VS by itself it crashes as well. It just started today. I have no idea what suddenly caused it to start. I updated my graphics drivers but that shouldn't have caused it. I haven't done much else since I was just working on my game a couple days ago. I tried reapplying VS2010 SP1 but it failed. I tried to install windows updates for VS2010 but they apparently failed to install as well.
I'm not sure what to try now. I could try to install the updates again. I'm not sure why they keep failing to install. It just says the program has stopped working and needs to close. I've restarted a couple times as well. Any thoughts on what I could try next?
Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: devenv.exe
Problem Signature 02: 10.0.40219.1
Problem Signature 03: 4d5f2a73
Problem Signature 04: mscorlib
Problem Signature 05: 4.0.0.0
Problem Signature 06: 4dd23522
Problem Signature 07: 3789
Problem Signature 08: 3e
Problem Signature 09: System.UnauthorizedAccess
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033