How to make one drive on mac?

Question

macOS

video

Attached a video of the problem, how to be and what to do? I installed Windows through bootcamp, then deleted it through disk utility, but the disk is still broken, when I do it as described on the Apple website, it gives an error.

Answer 1

Go to Disk Utility
1. Select your disk
2. Select "Partition"

3. Select the partition with Windows, click on -

4. Click "Apply"

5. Agree and wait for the operation to complete.
PS I did not create an additional section in the screenshots, but the process is the same.

Answer 2

The Bootcamp partition is removed via Bootcamp Assistant.
The screen can be recorded using Quicktime.