Ketron will always help with solutions to these data problems. Its worth keeping an eye on www.ketron.it for any updates on this matter

As of today you have to do one of the following:
1) Create your own back up
2) Purchase a new Hard Drive from Ketron Italy (preloaded)
3) Purchase restore CD's

The restore CD's (and replacement hard drives) have data up to 4.2b (2010 update) and should be available from your distributor. You then simply install the latest OS. However it seems some distributors cannot be bothered to stock these items in which case either contact Ketron Italy Direct or if that fails Ketron UK who stock Genuine replacement hard drives and restore CD's.