Need Help Running Sample Project

I Insalled NVIDIA developer toolkit & VS express 2013.
I’m trying to run DeviceQuery sample but the solution doesnt load in VS.
Load failed.

Can you help me. I’m trying to learn programming with CUDA.

Follow the getting started guide carefully:

If you study that document carefully, you’ll note that the express versions of VS are not supported by the CUDA 7.5 toolkit.

A warning to this effect will also be displayed during toolkit install if you have no compatible versions of VS.

If you’re looking for a “free” version of VS, try VS 2013 Community edition.

After installing vs2013 community, should I install CUDA toolkit again?

Yes. If you read and think about the document carefully, you’ll realize that having a proper VS installed is a requirement before you start installing CUDA.