enter the password to unprotect the disk

podmakov wrote:

I deleted BootCamp from DiskUtility :(

now, I have only MacOS, and I can’t powered MacOs

Revive or restore an Intel-based Mac using Apple Configurator - Apple Support

or

Make an appointment

Genius Bar Reservation and Apple Support Options - Apple

Outside the USA

Contact Apple for support and service - Apple Support

podmakov wrote:

Good afternoon. After installing BootCamp - I can't reboot into MacOS.

When I start MacOS, it asks me to enter a password to unprotected MacOS disk protection. I enter the password and the macbook reboots again and everything starts again. I'm sure the password is correct.

Hmmm...

Change your Mac startup disk

Restart your Mac in macOS or Windows - Apple Support

User wrote " When I start MacOS, it asks me to enter a password to unprotected MacOS disk protection."

Is there a Firmware Password involved ?

Set a firmware password on your Mac - Apple Support (CA)

Follow the advise from @leroydouglas - First

Below is only for informational purposes and future use

Deleting a Bootcamp Windows Partition should be done from With Bootcamp to avoid this type of issue the computer is experience Now

Remove Windows from your Mac using Boot Camp - Apple Support (CA)