Default platform value in Visual Studio 2013

Hi Team,

Currently we found an issue in Visual Studio 2013 Ultimate. It's about the default value in the platform.

1,Create a c# console application

2,Right click the solution in the solution explorer

3,click configuration properties, in the platform, usually you can see the x64 and x86.

4,suppose currently the default value is active(x86), now I select x64 and click cancel

5,right click solution and open the configuration properties again, you will find x64 is selected.

This issue happens on SQL server2012R2.

While in another Win7 machine, the same Visual Studio version, the issue won't happen.

This may be an configuration or registry issue.

any suggestion is appreciated.

Thanks & Regards,

Lyle