Background applications - especially programs which require bandwidth (chat clients, FTP programs, web browsers, etc) - may contribute to choppy gameplay, a low framerate, and other symptoms of lag. Unnecessary background applications can cause, slow performance, errors during the installation, issues with Audio/Video in the game, crashes, and other errors.
- Press Windows key + R
- Enter "msconfig" in the entry field and hit enter
- Select the "Startup" tab and hit "Disable All" button
- Go to the "Services" tab, check the "Hide All Microsoft Services" checkbox and then hit the "Disable All" button
- Click the "OK" button and close the utility, and restart your computer when prompted