How To Update Macos High Sierra 10.13.6 To 10.15

Enter your Mac’s administrator password to authorize the installation. 3. Wait for Completion

Here is the step-by-step guide to safely making the jump.

This is the most critical step. A major OS upgrade carries a small but real risk of data loss or a failed installation that could require erasing your drive. If you have a current backup, you can always restore your system to its previous state. how to update macos high sierra 10.13.6 to 10.15

Upgrading from macOS High Sierra (10.13.6) to macOS Catalina (10.15) is a major leap that brings a modern interface, improved security, and support for newer applications. However, because this jump involves moving from older 32-bit technology to 64-bit-only systems, careful preparation is required.

Open the Mac App Store and click Updates in the sidebar to download the 64-bit compatible versions of your third-party applications. Enter your Mac’s administrator password to authorize the

There are two primary methods to perform the upgrade.

Before downloading any files, you must ensure your specific Mac model officially supports macOS Catalina 10.15. Attempting to force an installation on unsupported hardware can result in system instability or a failure to boot. This is the most critical step

Once the download completes (the file is roughly 8 GB, so it may take some time depending on your internet connection), the installer will launch automatically. A window will appear reading Click Continue and accept the software license agreement.

Congratulations! You've successfully updated your Mac to macOS 10.15. Here are some post-update tips:

Old network kexts from High Sierra remain. Fix: Go to System Preferences → Network → Click Wi-Fi → Advanced → Remove all saved networks → Apply → Re-add your network. For Bluetooth, delete /Library/Preferences/com.apple.Bluetooth.plist and restart.

macOS Catalina requires a significant amount of free storage space.