Laptop starts only in the bios. What can I do?

My laptop starts only in bios and I have no idea what it is.

Usage was always quite normal. Only I turned on the laptop and immediately there was the bios.

Will also insert some pictures

If the battery is too weak, differences will arise and can only be compensated in the BIOS (for example, date).

Change the voltage or measure the voltage (3V)

Unfortunately I have no idea about PCs. So that's not the battery itself but the small button cell (2032) is the one I know

It has nothing to do with it.

OK. But why is there such a battery? You have to explain that.

Even if it is empty, it must start.

Turn HDD1-Password on clear.

Disable secure boot.

Disable password on boot.

If that does not help, change the boot order to get # 1 Windows Boot Manager. But you have to turn on BootSecure again.

I have changed the boot order but strangely it will not be saved. After a restart, I'm immediately back in the bios and the order is again original

He does not have to. When starting, a test is always carried out. However, a CMOS memory will always have different data when it gets supply voltage again. If they are written back to memory when leaving the BIOS, then it will work until the next cold start.
The CMOS battery prevents the memory from assuming undefined values.

Then the lithium battery must be replaced.

You can't of course leave the BIOS without saving, then he goes right back into the BIOS.

Your date is wrong. BIOS battery flat?

New button cell installed, problem persists

Has not changed anything