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I am running 10.12.6 sierra and have been trying to update to Catalina but it says this whenever I try to download 10.15.7 "This update requires macOS version 10.15."
I have tried to look in my app store for Catalina or mojave but only bigsur is available and my Macbook Pro cant download it.
Please help as soon as possible
MacBook Pro
The 10.15.7.dmg is an update for macOS Catalina, you need to be already running a version of macOS Catalina
before that will install.
If you want to upgrade your mac to a newer OS you need to download the full installer app from the App Store.
Open your Safari browser and click on this link,
How to get old versions of macOS – Apple Support (UK) Go to Check Compatibility to see if your mac qualifies for the OS upgrade you want.
Then go to the Download OS section and click on the OS you want to install.
This will redirect you to the App Store Catalina download page, it should say
Get or Download. This will download Install macOS Catalina.app to your Applications
folder, it is 8.26GBs in size.
As you want to upgrade from macOS Sierra to Catalina I would recommend to upgrade to
macOS High Sierra first.
Before upgrading make a full back up of your Mac.
Check that third party apps you use have updates available for the new OS.
Check that your printers/ scanners etc have updated drivers and software available for the new OS.
Connect your mac to your router via cable rather than rely on WiFi.
Do not use your mac while it is downloading
and do not use any other devices that share the same internet connection.
If the App Store says ‘Open’ then it is detecting a previous download of the install app
go to the Applications folder locate Install macOS ******.app.
Move it to the Trash, empty the Trash.
Restart, click on the link again, the App Store should say ‘Get' or 'Download'.
If you are considering upgrading to Catalina or be warned it does not support 32bit apps.
Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,
some updates may be free, some may be paid. Use this app to discover which apps you have
are 32bit, https://www.stclairsoft.com/Go64/ then contact the developers of the software to see
if they are offering 64bit updates.
The 10.15.7.dmg is an update for macOS Catalina, you need to be already running a version of macOS Catalina
before that will install.
If you want to upgrade your mac to a newer OS you need to download the full installer app from the App Store.
Open your Safari browser and click on this link,
How to get old versions of macOS – Apple Support (UK) Go to Check Compatibility to see if your mac qualifies for the OS upgrade you want.
Then go to the Download OS section and click on the OS you want to install.
This will redirect you to the App Store Catalina download page, it should say
Get or Download. This will download Install macOS Catalina.app to your Applications
folder, it is 8.26GBs in size.
As you want to upgrade from macOS Sierra to Catalina I would recommend to upgrade to
macOS High Sierra first.
Before upgrading make a full back up of your Mac.
Check that third party apps you use have updates available for the new OS.
Check that your printers/ scanners etc have updated drivers and software available for the new OS.
Connect your mac to your router via cable rather than rely on WiFi.
Do not use your mac while it is downloading
and do not use any other devices that share the same internet connection.
If the App Store says ‘Open’ then it is detecting a previous download of the install app
go to the Applications folder locate Install macOS ******.app.
Move it to the Trash, empty the Trash.
Restart, click on the link again, the App Store should say ‘Get' or 'Download'.
If you are considering upgrading to Catalina or be warned it does not support 32bit apps.
Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,
some updates may be free, some may be paid. Use this app to discover which apps you have
are 32bit, https://www.stclairsoft.com/Go64/ then contact the developers of the software to see
if they are offering 64bit updates.
It appears you are trying to download an Update to Catalina from the Apple Support Download site. These are updates and Not Full Installer of Catalina
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. Make sure to use Only Safari to commence the download as Others may not work
Make a Time Machine Backup Before attempting. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina Only support 64 bit and there is no workaround.
Suggest using Go64 to search for 32 bit applications before attempting. This will identify 32 bit Apps and then decide if the Developer offers 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 you read this page
Yup, my mac is compatible to catalina but not big sur. I cant find Catalina 10.15.0 though which is why I cant get it sadly.
Read my post.
Thank you so much! Worked perfectly :)
mid 2012 13 in mac book pro cant update to catalina or any other mac os
