Lenovo all in one s300 boot option F2 how to remove

Dear Lenovo users, hello!

1. The reason why you have to press F1 or F2 to enter the system is because the CMOS battery is dead.

2. You can buy a CMOS battery in a physical store or online3. Disassemble the back cover of the all-in-one machine, take out the old CMOS battery and replace it with a new CMOS battery.

4. Press F2 to enter the system after powering on, and set the latest time in the time position in the lower right corner of the system.

5. After the setting is completed, there will be no F1 or F2 prompt when restarting.

Click F1 to go to BIOS settings to restore the default settings.

We recommend that you try the following: turn off your computer and unplug it, then press the power on button and hold it for three seconds before releasing it, then press it three more times. Finally, reconnect the power supply to power the boot test.

If the problem persists, it is recommended that you go to the nearest service station to check.

Lenovo service network query link.

The hint should be that there is a problem with the fan fan, either the fan is not detected, or there is a problem with the fan. The host computer generally has 2 fans, namely the CPU fan and the graphics card fan.

1. It is recommended to use Master Lu to check the temperature of the CPU motherboard and the fan speed after entering the system.

2. Or press F1 to enter the BIOS when this interface appears, and see if there is an option to check the CPU temperature in the BIOS.

3. You can also open the case to see if the fans of the CPU and graphics card are working properly.

Dear Lenovo users, hello! You can refer to the Lenovo Technology Forum, where there is a comprehensive knowledge and analysis discussion.

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Hope it helps you and have a great day!

1. The battery on the motherboard is dead.

2. The floppy drive is set to start, but there is a problem with your floppy drive.

3. There is a problem with the hard disk.

The solution after the problem arises:

1. The battery on the motherboard is dead.

Solution: Replace the motherboard battery.

2. The floppy drive is set to start, but there is a problem with your floppy drive.

Solution: Press del to enter the BIOS at boot, boot the boot order, and turn off the floppy drive to boot.

Turn off the power-on floppy drive detection function: Start the computer, and then press the [DEL] button to enter the main interface of BIOS settings;

Select the "Advanced BIOS Features" setting item and press the Enter key to enter; Set "Boot Up Floppy Seek" to "disabled" to turn off boot software detection.

3. There is a problem with the hard disk.

Solution: Detect the bad sectors of the hard disk, shield the bad sectors, or replace the hard disk directly.

The brightness adjustment button is on the side of the computer, and you can press the corresponding button.

It can also be adjusted in the graphics card settings of the system.

In the settings, there is a display and then click on the screen backlight.

Dear Lenovo users, hello!

Back up your important data first. Then enable one-click recovery system to try.

In addition, you are provided with the following methods to reinstall the system:

It is recommended that you use the system installation disc to reinstall the system, and do not install the ghost system.

If you install win7 system, you can refer to the following method.

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Lenovo Community.

Dear Lenovo users, because we can't see the actual situation of your computer here, the text description may not be a brawl to help you complete the operation in detail, if you do not understand the dismantling of the computer, it is recommended that you contact the local series of service stations, please ask our engineers to help you deal with it.

Lenovo service station information inquiry: