Battery that controls the date and time when booting up

You need to have the battery in order for system to boot, however, you can reset it.

http://www.howtogeek.com/131623/how-to-clear-your-computers-cmos-to-reset-bios-settings/
How to Clear Your Computers CMOS to Reset BIOS Settings

Hello.

Please provide more details about your problem.

If you are seeing the "F1" prompt soon after turning the computer on, it is likely preceded by details of what has occurred and wants you to confirm the change. Reboot the computer and look at the entire screen and provide the details on the screen so we can help.

Until we get your exact issue, I will cover the basic reasons why you would see

If the message states the DATE AND TIME are incorrect, you will need to replace the small round battery that is on the motherboard. These are typically a battery with 2032 written on them and you can pick them up almost anywhere watch batteries are sold. Replace the battery, boot the computer and then go into BIOS and set the correct date and time.

If something has failed on your PC (like a stick of memory, hard drive, CD ROM drive, etc.) the BIOS would see this change and would prompt you to acknowledge this change and either hit F2 to go into BIOS and fix the issue or F1 to continue booting the computer. IF this is the case, note what has failed and then go into BIOS and either disable the drive or accept the new memory value.

replace the cmos battery, reboot the computer go into bios reset date and time and change boot order cdrom to boot first save changes. boot from windows xp cd do a repair. form command type sfc /scannow checks all system files.if any are bad should repair them.

Go and press F2 then find Load Default or something similar as each BIOS is different.
If it then loads, change the cmos battery.

It means that something is wrong with your setup - my first guess is that your computer backup battery has gone bad, but it may be something else.

Press F1 to retry - if the computer starts, check the system date/time (usually in the right-hand corner of the toolbar - the opposite end of where the Start icon is located).

If the computer does not start, press F2 - you will be entering the BIOS (Basic Input/Output System) and you really should not change anythig unless you are familiar with what the terms mean. BUT - it will do no harm to change the date and/or time if they are incorrect.

Exit out and the computer should now boot automatically.

If it DOES boot, then the battery is weak or dead. You will have to shut down the computer, open the case and replace the quarter-sized battery - usually 3volts.

While you are in there, blow out any accumulated dust - and don't forget the power supply.

Close the case and reboot. You will still get the error, but this time, once you reset the date/time the computer will "remember" the settings and you will be good to go for a few more years.

Hit F2,look in setup to see if the hard drive is recognized and check that the date and time are correct.
Then hit esc key. it will ask if you want to save changes, click yes. It should boot and probably ask you to hit F1 or F2 again., unless there is a problem with the CMOS battery, which may need to be replaced.
If you hit F1 to continue, it will boot, but your time and date will be off.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Try going to the setup and loading the default values. If this does not solve your problem its time to change your CMOS battery. Turn your system off. Open your case. You will find a coin like component. That is your CMOS battery remove it and replace it with a new one. When booting for the first time after replacing the battery,enter the correct date and time.

are u able to enter the bios, if yes then there is a problem with the hdd and the memories, check the hdd cables and clean the memories. if possible plz install a clean copy of windows.once done also upgrade the bios of ur motherboard to latest

Sounds like you need to change the CMOS battery, the time being wrong everytime you boot is a good sign but also it losing its settings in bios is also another sign

Update the BIOS or CMOS it should be fine after that.