I have the following MacBook
MacBook Pro (Retina, 15-inch, Late 2013)
I want to format the hard-disk and reinstall the Mac so that I have a clean system.
I tried to boot up with
CMD + R and reinstall OS. Looks like it didn't wipe out the hard disk and just install the OS again.
Please let me know whats the best way forward. Read a lot of articles are they are confusing. Some say it will get into Internet recovery mode etc.