Size of Icons on Screen

Just recently, everything on my screen has shrunk, icons start bar, etc. What can cause this problem and what is a possible fix. I went into the Control Panel and tried to see if the resolution got changed but it didnt it is the same as it was. What else could be causing this problem.

Thanks for your help.

Right click on desktop -> Properties -> Settings -> Advanced -> General Tab -> dpi setting -> large size.

See if that solves the problem. Or I am not too sure of.