20 appears on computer boot, and computer boot appears

The computer often turns on the screen suddenly and does not turn on.

You need to press the F1 key to enter the boot, mainly because the settings in the BIOS do not match the real hardware data, which can be divided into the following situations:

1. In fact, there is no floppy drive or the floppy drive is broken, but there is a floppy drive in the BIOS, which leads to pressing F1 to continue.

2. I originally hung two hard disks, and set them as dual hard disks in the BIOS, but later forgot to change the BIOS settings back when I removed one of them, which will also cause this problem.

3. If the motherboard battery is out of power, it will also cause data loss, which will cause this failure.

4. Reboot the system, enter the BIOS settings, and find that the floppy drive is set to, but in fact there is no floppy drive in the chassis, set this item to none, troubleshooting.

To turn off this annoying prompt, go to boot--boot configration and set wait for"f1"If error is set to disable, F10 will save and restart, and the problem will be solved.

Here's how to fix it:

Boot into the BIOS, set your hard disk parameters, if you don't know, change to automatic check, generally autodetect;.

There is also a situation where the bios may set the floppy drive to inches, but in fact you don't have a floppy drive at all, and drive A is set to none.

Go to the boot item, there is a boot configration in it, and find something like wait for"f1"If error, set it to disable to avoid prompts.

The easiest way is to restore the BIOS default settings, usually by going to the BIOS and selecting Load Fail-Safe Defaults or Load OptMized Defaults and pressing F10 to save and exit.

That round coin cell battery on your computer's motherboard is dead, causing your time and date to be wrong. What do you do now:

1.If you don't understand the computer, press F1 every time you start, you can enter the system, and after you enter the time and date of your computer, if your computer is not powered on, there will be no problem. If the power goes out, there will be this problem next time.

2.If you know the computer, you should change the battery, then click the delete key, enter the CMOS settings, change the time and date, and start order. That's it.

The last time you shut down, was it a forced shutdown?