How To Update Macos High Sierra 10136 To 1015 !!link!!

Do not close the laptop lid or force a restart during the process. Phase 4: Post-Installation Checklist

Once your backup is complete, before starting the upgrade. This protects your backup from any accidental issues during the installation.

If your Mac falls outside this range, the official update path is impossible. However, if your hardware is supported, you can proceed.

Check the column. Any app listed as "No" will stop working after upgrading to 10.15. Update or find alternatives for these apps prior to upgrading. Step-by-Step Installation Guide how to update macos high sierra 10136 to 1015

Although you're already running High Sierra, not all models that run High Sierra are officially compatible with Catalina. Check your model against the list below.

. If your Mac was released between 2009 and 2011, it likely cannot officially run Catalina and will remain at High Sierra. Apple Support Community : Early 2015 or newer MacBook Air / Pro : Mid-2012 or newer : Late 2012 or newer : Late 2012 or newer : Late 2013 or newer Apple Support Phase 2: Crucial Pre-Update Steps

The macOS Catalina installer requires a significant amount of free storage space to download, extract, and install files safely. Do not close the laptop lid or force

to back up your files, as major OS upgrades can occasionally fail. Check Disk Space : Ensure you have at least of available storage if upgrading from High Sierra. Software Note : Catalina does not support 32-bit apps . Use a tool like to identify apps that will stop working after the update. Apple Support Community 3. Download and Install

[High Sierra 10.13.6] ──> [Time Machine Backup] ──> [Download Catalina Installer via Safari] ──> [Run Setup] 1. Create a Time Machine Backup

Never initiate a major OS upgrade without a current backup. If the installation fails or power cuts out mid-update, your data could be corrupted. Connect an external hard drive to your Mac. Open > Time Machine . Click Select Backup Disk and choose your external drive. If your Mac falls outside this range, the

"This copy of the Install macOS Catalina application is damaged"

: Once the download completes, the "Install macOS Catalina" app will open automatically from your Applications folder. Follow On-Screen Steps to the license terms.

Catalina officially supports the following Mac models:

macOS Catalina is quite selective. If your Mac model is from Mid-2012 or later, you're likely in the clear. You can find your Mac's model and year by clicking the () in the top-left corner of your screen and selecting "About This Mac."

Because macOS Catalina is an older operating system, it will not appear automatically in your High Sierra Software Update panel. You must pull it directly from the Mac App Store via a specific link.