Check Your Hard Drive
macOS Catalina approaches disk storage in a new way. Compared to previous versions, it favors cleaner hard drive for better performance, so first check what’s taking up your space before upgrading.
Clean Up Your Mac
The fresh macOS needs a fresh Mac. It’s recommended that you remove large and old files from your disk and install macOS Catalina on a cleaner hard drive. The easiest (and fastest) way to free up your storage is by running a scan with CleanMyMac X. It cleans out:
System junk
Unused apps
Extensions
Browser junk
Large & old files
Broken downloads
Adware extensions
User caches & logs
Unused DMG installers
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CleanMyMac can find as much as 62 GB of junk (based on average scan results). But besides cleaning, it speeds up your Mac with maintenance scripts and manages memory-draining apps. Get CleanMyMac X now and run a scan to see how much junk you can clean up.
If you have OS X version 10.8, download the previous version, CleanMyMac Classic.
Back Up Your Mac
And now that your Mac is clean, you should definitely back it up. Why? You never know what will happen when upgrading your operating system. Plus, it’s just good practice to back it up every so often, you know, just in case.
- Go to yourSystem Preferences folder.
- Select Time Machine.
- “Select Backup Disk…”
You may need to first choose to “Set Up Time Machine.” - Choose where you’d like to store your backup.
An external drive or an Airport Time Capsule is good.
After you’ve chosen the drive, click the Time Machine icon in the upper bar and select Back Up Now. This initiates the backup.
That’s all. Happy time with macOS 10.15 Catalina!