Problems formating my macbook air 2015 (macintosh HD no visible)
Hello
Computer: Late 2015 Macbook Air MacOS High Sierra.
Note: My files are backed-up and safe in an external hard drive.
The Problem:
As viewed in Disc Utilities ... The second drive: 'Macintosh HD' is not recognised (does not appear at all).
And when I try to install a new version of Mac OS High Sierra the error ''No bag entry'' pops up, in other circumstances, it will give me the option to choose the drive in which I want to install the OS, but no drives appear. (so I don't have where to install the new OS)
Steps Leading Up To The Problem:
- I was told I should erase the previous ''Macintosh HD'' which I did, and now it does not appear.
I don't mind if I lose everything inside as that was the plan, to begin with, but I don't want to continue doing anything because I really need this laptop to work.
So the question is: What do I have to do next?
I am attaching some screen pictures of things that might help you to help me.
Thanks in advance for any help.
MacBook Air 13″, macOS 11.4