How can I correctly obtain and install MacOS on a clean reinstall?
4309
How can I download an older version of OS X/macOS?
132604
How do I install OS X Yosemite without a working Mac App Store application?
132442
How to install Ubuntu as the single OS on a MacBook?
132533
back-up: which patitions to back-up before upgrading/reinstalling
46437
install Ubuntu on a Mac book single boot
149200
How to install Ubuntu on a Mac with M1 processor?
50546
Can I Reinstall iBooks?
74932
Erased Macintosh HD and installing OS X Lion again
43279
Alternative Method to Acquire El Capitan Upgrade
30312
How do you get system diagnostic files from macOS?
46084
Can I downgrade from macOS Sierra to Snow Leopard (OS X 10.6)?
123504
Copying applications from applications folder to external and reinstalling osx
125110
Recover data after reinstalling OS X?
68614
Is it possible to install an old version of Mac OS on a new Mac?
125823
How can I create a bootable USB stick with Linux and FAT32 from macOS
79327
How do you perform a clean install of macOS High Sierra with APFS?
36892
Upgrading from Yosemite to El Capitan, but not Sierra