I convert my vbars from 5.3 to 6.0 pro and did a recovery files on both of vbars because the vconrol satellites was back odered. Now I have the vcontrol satellites, and trying to convert it back to 6.o pro but it will not update.When I click on the 6.0 pro version and I keep getting the message " this option is not available." Help!!!!
you always need a license key before you can do an update: go here, click the icon in the column 'License'
Those license keys make the update possible for 24 hours, thereafter the update for this serial# is locked again, for safety reasons.