In order to prevent the PrestoExperts Messenger from automatically putting your status into 'available' when the computer is started, please follow the below instructions:

1. Click on the Windows Start Menu.
2. Choose All Programs.
3. Choose Startup.
4. Within the Startup, you will find  PrestoExperts Messenger.  Right-click on it and choose Delete.

The PrestoExperts Messenger will no longer appear upon start-up of the computer.  You may manually Sign In at your own convenience.