Unable to save changes to files in Visual Studio 2013

Question

I have a Visual Studio 2013 solution that is under source control (TFS, Visual Studio Online). It is mapped to a local workspace, I have checked out some files (e.g. web.config,

Answer 1

For me, it was Windows' Controlled Folder Access, even though I didn't get the standard warning/error. In "Allow an app through...", I had to add

C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\WDExpress.exe