yogy

I fired up windbg and I looked at the running threads of the Visual Studio process (devenv.exe) and I noticed that a program that I’ve installed Smoothping Elite injected one of its DLLs to the process, after I removed the software completely from the computer and restarted it everything went back to normal again.

It’s important to note that in your case the software that is causing the problem might vary so if you got this problem and you didn’t manage to solve it you can use windbg, process hacker or process explorer to check for DLL injections which may block the debugger from debugging your program.