Some times when dealing with a new operating system like windows 7, Some programs stop functioning or wont run like starcraft. And then you may feel the need to look up local computer repair help. This however is not always necessary! Windows 7 as well as older operating systems allows you to run old programs in backwards compatibility mode. Which in a nut shell means this. If you have a program or a game like starcraft you would like to play that's designed to run on much older operating systems then you can right click on the game icon and select run in compatibility mode. Or you may have to right click on the icon and select properties first then look for a tab which mentions compatibility. And then that's it!
Now as a note of interest, it seems windows 7 does not like to run starcraft even in backwards compatibility mode! If you find that this is the case then I recommend shutting off ALL programs you have running and then trying it.