電腦的時間 時常轉慢了

你有機會是底板電池無電，大多數底板只得一粒電池，形號是CR2032 (3V)大部份相機店，電腦或曬相鋪都有得賣，5至6元一粒，試下換了電後，較返正確時間，再測測。不過，許多電腦的時間也不會大準確，每隔個多月也會唔差三至五分鐘的。

There's only one battery on your motherboard, but it doesn't matter with the battery.
U hv to config and update the date and time automatically synchronize with an Internet time server.

Pls try the method as follow:
Just Right click the clock on the lower right of desktop -->
select Adjust Date/Time --> select the tab of Internet Time -->
*Check the box of Automatically synchronize with an Internet time server -->
select the Server: eg. time.windows.com... -->
press the button of *Update Now --> OK.