问题
I'm trying to launch Visual Studio 2010 from my desktop and I just get this error box popping up saying "Unknown Error"...
Anyone have an idea why this might happen?
回答1:
I just fixed it, I uninstalled and reinstalled my version of the .NET Framework (v4.0). And then when I again tried to launch Visual studio it started up without any issue.
回答2:
Here's some things you can check:
- Temporary de-activate all Addins
- Temporary disable all Extensions
- Check the Event Log for any errors
- Reset your settings
- Start with /ResetSkipPkgs
Based on your comment below, if you can't find the DevEnv.exe when you have opened a VIsual Studio Command prompt, I would suggest you to re-install Visual Studio as it indicates your installation (paths) are in a bad state.
And here are some other things you migh want to check:
VS 2010 Crashes on Startup with "Unknown Error"
Visual Studio 2010 quit working...now gives me an "unknown error" dialogue when launched
Visual Studio 2010 Startup Errors
Visual Studio 2010 crashes on startup after installing SP1
回答3:
Open Visual Studio Command Prompt with Administrator permission and type the following,
devenv /ResetSkipPkgs
回答4:
the Solution of this problem ist very simple.
Install VS 2010 on a other machine and export HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\10.0 to a file. Copy the file to your target machine and rename the path above to ".old", then double click your exported reg-file and wait a time....
After this my Visual Studio was starting correctly.
The other solution, that people post wont work in my case.
I hope this will help some body.
Enjoy
Sven
回答5:
I had the same problem.. Instead of completely uninstalling .net framework, I just repaired the .net framework from the repair/uninstall option available in Control Panel of my Windows 7 Ultimate pc. Finally I got another error that, Visual Studio could not create AppData folder in my system. Then, I right click the Visual Studio icon and selected Run as Administrator. This worked for me!! Now, Visual Studio 2010 is working on my pc!! Try this out if you want..
来源：https://stackoverflow.com/questions/10910406/visual-studio-2010-unknown-error-on-startup