Press and hold Command + Option + R.This allows you to reinstall the latest version of macOS that is compatible with your Mac computer from the internet. Press and hold Shift + Command + Option + R. This option allows you to reinstall the macOS that came with your Mac, or the closest version still available. Press and hold Command + R. How to reinstall Catalina on your Mac. Isn't as simple as finding the older version of the Mac operating system and reinstalling it. Once your Mac is running a newer version it won't allow.

Safari for Mac

Safari is included with your Mac.

• To keep Safari up to date, install the latest macOS updates. The most recent version of macOS includes the most recent version of Safari.
• If you deleted Safari and don't have a backup, reinstall macOS to put Safari back in your Applications folder. Reinstalling macOS doesn't remove data from your computer. Before reinstalling, you might want to use Spotlight to search for Safari. If you find it, but it's no longer in your Dock, just drag it to the Dock to add it back.

Safari for Windows

How To Install Catalina On Macbook Air

Apple no longer offers Safari updates for Windows. Safari 5.1.7 for Windows was the last version made for Windows, and it is now outdated.