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

martijn_himself sounds correct, problem could be because of Disk Encryption Software. This problem started om my PC when i changed settings (domain etc) on Disk Encryption Software. and a simple "Update 2" for VS2013 fixed this issue.