How to get out of Boot menu\Application menu?

Question

BIOS

I tried to reinstall the wired Windows OS to get rid of a couple of bugs. I went into the bios, reset what I needed, and pressed something like "save and exit". After that, a window with the tabs "Boot menu" and "Application menu" opened. Further, no matter what menu items I chose, nothing happened. After rebooting the laptop, this hopeless window pops up again. I can't go back to bios. My laptop is Lenovo v580. Thanks

Answer 1

You have killed partitions on your hard drive. Now you need to create a disk or flash drive with UEFI bootloader support and repartition the partitions. Or install from such OS media. The campaign and the recovery partition were demolished too. Or, if you didn’t touch the partitions on the screw, go into the BIOS using the esc + f1 + delete combination and restore the boot settings.

Answer 2

There is a simple option - you need to get into the BIOS and disable secure boot.
The easiest, fastest and most effective way to enter the BIOS on a lenovo v580, regardless of the operating system.
It works 100%, and not the x **** that you shoveled a bunch on the Internet and nothing helped you.
So so!
1) Remove the battery and turn off the mains.
2) Turn over and remove the large cover, there are only 2 bolts.
3) Under the cover we find the battery as in the system unit and remove it, in order for everything to be OK for sure, remove the hard one (there is only one bolt).
4) We connect only to the network. We turn on the laptop.
5) There will be an error setting the time and date, this is already in the BIOS itself, I don’t remember exactly what to press there, but don’t blame me,
like f1 or esc you will understand more clearly.
6) Here you are in the BIOS, set the settings you need.
Good luck!