Hi!
sorry to disappoint you but i play the Wersi Abacus fro three months now most nights a week and there were NO Crashes!
Please understand that the 'instability'o f Windows systems is mainly due to conflicts in the various software components installed.
if someone 'plays around'in a Windows PC by installing and unistalling software then problems will arise.My concern before byuing it was the possible Hard Disk problems but i have an exact copy on another Hard Disk 'just in case' .