I'm playing Starcraft2 on windows and it suddenly crashed. any ideas on why?

Hello Gamefreak

Can you give us more details about the crash such as what sort of a crash it was?

Can you also post some information about your computer? You can find this information in the Direct X Diagnostic Tool:

Press the Windows Key and R
Type in: dxdiag
Hit Enter or OK

Click on the Save All Information button at the bottom, and create a dxdiag text file, and copy and paste the data from the dxdiag file into your reply.