Most likely you are using a game which updates itself very often. The updates have many advantages including but not limited to bug fixing. Beside bugs, the updates could increase performance, stability and issues with the game. My suggestion is to let the update perform its operations and then play the game. Also, many EA games now work through Origin, and although you would still buy the CD/DVD only, their software must be installed in order for the game to run properly.
If you want to perform a test, go to Control Panel and locate Add or Remove Programs or Programs and uninstall Origin from that location. You will notice that after you restart your computer, the game will simply stop working and you will need to install Origin (EA client for update, game purchases, etc).