D2L Troubleshooting Antivirus Software We highly recommend you install an antivirus program and keep it updated. Plugins/Media Players Links to download these plugins/players are for your convenience. Your course may or may not use these plugins/players. Download Adobe Reader Download Flash Player Download Real Player Download QuickTime Popup Blockers If you use popup blocker software, it will prevent multiple windows from opening on your screen. You should disable popup blockers when using D2L Brightspace/e-Campus.