In PC we can see older system files got deleted after 30 days. So as same OS (windows 10), will there downloaded UPDATE data deletes automatically? Actually i was facing problem since yesterday while updating my L640XL from 10586.164 to .218. Update downloaded successfully but unable to install it because it's showing an error that update data corrupted. I KNOW HARD RESET OPTION! Just asking will there data deletes automatically in phone or not?