Uninstall Apps In Mac Os High Sierra
For a MacBook that old (Powerbooks dropped off the market somewhere around 2005), you will likely need to use the Snow Leopard DVD that shipped with the Mac.
You can try Internet Recovery, but it only works on 2012 and later, or 2010, 2011 models that you installed the firmware update to use Internet Recovery.
On restart, hold down cmd-option-shift-R. If your Mac supports it, you will see a spinning Globe instead of an Apple. It will boot from Apple's servers and will install the OS that shipped on that Mac. However, it had Snow Leopard at best, so I think it will install Lion.
Apple Mac Os Sierra Download
You will need to erase the drive and reinstall OS X. There is no way to go backwards without erasing the drive. Did you make a backup before upgrading? If so, just boot into Recovery and Restore from a Time Machine backup.
Here’s what you need to do: Open Finder. Go to Applications. Choose the app you want to delete. Press Command + Delete (⌘⌫). Click the Empty button in the upper-right corner of the window.
Install Mac Os Sierra File
Uninstall Apps In Mac Os High Sierra Version
Here are Apple's instructions: macOS Sierra: Revert to a previous macOS version
Dec 17, 2017 4:03 PM