Ms. Jessica Gil of GSRI reported a problem that all the transaction from NAV 2009 for today has been deleted. I ask her if she did something then she said she doesn't . I seek assistance from John regarding the case he said that it is impossible that all the transactions were deleted without doing anything. Upon checking on the back up the last differential back up that run was around 2pm today. I asked the user if what time was the last she transacted on NAV before it has been deleted. She said it was around 230pm today, I advised her to log out first. Then I told her if ever we will retrieve the data the last data that we can only get is from 2pm. She said it is okay. Then she restarted her computer then she said that all the files were restored already without us, restoring the backup.