You need to replace the Bios Battery. Remove base covers to see if you can locate the battery there. (Flat 3 volt watch battery type) if its not there then you may find it under your keyboard. thats a little more tricky to get to but i have a video that can help open the laptop to get to it. www.powerjackrepair.com
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IS your TimeZone is Correct? Right click on your clock, choose Adjust Date/Time. Click Time Zone Tab. Make sure your Time zone is correctly set.
Boot into the BIOS (setup) screens and check the date and time there. If the date is off by years then that verifies you need a new CMOS battery. Do not confuse the CMOS battery with the large external battery you run the computer with.
When you change the date and Time to the correct Date and Time and when you next boot up the laptop the Date and Time is lost. Then this is caused by a flat BIOS battery which cannot keep these setting stored in the BIOS. Replace the BIOS battery then go into the BIOS setting to set the Date and Time and this will fix your problem.
Go into the BIOS settings then to the Date and Time and set the Date and Time, Save the settings and Exit. IWhen you boot up later and the Date and Time is incorrect then the BIOS battery is flat and a new replacement battery is needed. The BIOS battery keeps the laptop's configuration plus the Date and Time settings unless the battery is flat.
When you boot up and the Date & Time is wrong then you correct the
Date & Time, then when you shut down and boot up again the Date and
Time has changed. This is an indication that the BIOS battery is flat
and you need to replace the BIOS battery. Install a new BIOS battery, go
into the BIOS setting and set the Date & Time etc. and the new
battery will keep your settings stored in the BIOS.
Go into the BIOS by turning on the laptop and pressing F2. In there i believe on the main screen you can change the time and date. Do that, save changes and exit and then go into windows and see if it keeps the right time and date.
Go into the BIOS by pressing F2 when you first turn on the laptop. In the main screen you should be able to change the time and date. After you do that save the changes and exit and go into windows and see if the date and time is current.
Your internal CMOS battery(button battery) needs to be replaced. That keeps your date & time always working. Therefore when your main Battery runs out and external power is not present the date and time goes back to the date of manufacture.....sodeep
Inside your computer on your motherboard there is a very small battery. It looks like a watch battery and is called the CMOS battery. The purpose of the battery is to keep a constant flow of electricity flowing through the motherboard so it can keep the time and date program running and also to keep all of your settings. If there was not battery then the date and time would stop when you shut your computer off. So it is time to change the battery for a new one and you will be good. Its not that hard but if you never worked inside a laptop then it is probably better if you found someone experienced to change it.
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