Below step is how to recover it as old version
Step 1. Download file VS2012CPPWinForms.zip
Step 2. Go to directory of: C:\Program Files\Microsoft Visual Studio 11.0\VC\vcprojects\vcNET
And make backup the fles
Step 3. Replace those file by files on Step 1
Step 4. Making project "hello world"
Step 5. Build the project