Today, customers call the server's anti-virus software does not work, so they will leave where customers will be left immediately. Studying the server's anti-virus software is not aware of the reason, and later found that the system date is not the current date, but it has been pushed for many years. Because all anti-virus software has a period of use, it does not work when the life is exceeded, so that the correct time is changed, the anti-virus software is working properly. Restarting the server discovery date has changed, it can be determined whether the battery is dead, or the first touch server (not ordinary PC) battery is dead, because there is no new battery on the hand, so dismantled on the abandoned old PC One battery is changed, everything is returned to normal.