Pre-release updates are updates that have been thoroughly tested and will be released soon. Enabling pre-release updates gives access to the most recent detection methods and fixes; however, pre-release updates might not be stable enough at all times, so you should always revert to using normal updates when an issue is resolved.
Press the F5 key to open Advanced setup.
Click Update, expand Profiles → Updates, select Pre-release update from the Update type drop-down menu and then click OK.
Restart your computer.
Click Update → Check for updates.
After your issue is resolved or you no longer need pre-release updates, follow these instructions to switch Update type back to Regular update.
Press F5 key to open Advanced setup.
Click Update, expand Profiles → Updates, and then select Regular update from the Update type drop-down menu. Click OK to close Advanced setup.