Have Mac desktop 2013. High sierra is no longer supported. What OS can I install
What version of OS can I install on a Mac 27inch 2013 vintage. High Sierra is no longer supported
iMac 27″, macOS 10.13
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What version of OS can I install on a Mac 27inch 2013 vintage. High Sierra is no longer supported
iMac 27″, macOS 10.13
❗️ Do NOT upgrade until you have made a Time Machine or other backup of your startup drive.
Learn How to Back up your Mac with Time Machine
How to Upgrade macOS:
The macOS version you can upgrade to depends on the year your Mac was released.
Click the (Apple) menu at the top of your screen and choose About This Mac.
Check the Compatibility of your Mac with newer versions of macOS:
➡️ macOS 10.14 Mojave is compatible with the Macs listed here
➡️ macOS 10.15 Catalina is compatible with the Macs listed here
➡️ macOS 11 Big Sur is compatible with the Macs listed here
➡️ macOS 12 Monterey is compatible with the Macs listed here
❗️ – IMPORTANT – Your 32-bit apps won’t work in Catalina, Big Sur or Monterey.
https://support.apple.com/en-us/HT208436
Use the free utility Go64 to check the compatibility of your apps:
https://www.stclairsoft.com/Go64/
✅ - IF your Mac and apps are compatible, then using Safari only, download the macOS upgrade installer app:
Click > Mojave, Catalina, Big Sur or Monterey.
Once downloaded, double-click the “Install macOS…” app in the Applications folder to begin the upgrade.
❗️ Do NOT upgrade until you have made a Time Machine or other backup of your startup drive.
Learn How to Back up your Mac with Time Machine
How to Upgrade macOS:
The macOS version you can upgrade to depends on the year your Mac was released.
Click the (Apple) menu at the top of your screen and choose About This Mac.
Check the Compatibility of your Mac with newer versions of macOS:
➡️ macOS 10.14 Mojave is compatible with the Macs listed here
➡️ macOS 10.15 Catalina is compatible with the Macs listed here
➡️ macOS 11 Big Sur is compatible with the Macs listed here
➡️ macOS 12 Monterey is compatible with the Macs listed here
❗️ – IMPORTANT – Your 32-bit apps won’t work in Catalina, Big Sur or Monterey.
https://support.apple.com/en-us/HT208436
Use the free utility Go64 to check the compatibility of your apps:
https://www.stclairsoft.com/Go64/
✅ - IF your Mac and apps are compatible, then using Safari only, download the macOS upgrade installer app:
Click > Mojave, Catalina, Big Sur or Monterey.
Once downloaded, double-click the “Install macOS…” app in the Applications folder to begin the upgrade.
The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.
With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. For Best results use Safari to commence the download as Others may not work.
This computer Qualifies for Mojave and Catalina
Safari will open a redirect and open the Apple Store where the download can commence
Make Time Machine Backup is very useful and can be used to Revert to Previous Working macOS
Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur & Monterey supports only 64 bit and there is no workaround.
Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.
Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS and may even Corrupt the OS requiring a Reinstallation
Have Mac desktop 2013. High sierra is no longer supported. What OS can I install