Comodo dragon auto updates deletes my profile

Switched on my computer this morning to find that Dragon has reset itself to default. I have lost all my bookmarks, autosave data in fact my profile has gone.Some of the links are from clients which i need to do my work, please dont tell me i have to ask my clients for details again has this looks like i have no regard or care for their details which is far from the truth.How can a update that never asked me, delete personel details off my computer without giving me a option to decline. How many times a day would i need to save my bookmarks to ensure this does not happen again.i have spent most of the day trying to find a solution that i may revert my browser back, could anyone here advise if this will be possible.Why are people reporting this has a issue but Comodo do nothing to rectify.