High Sierra to Catalina conversion
I have Macbook air7,2 . It is worlikg on MacOs High Seirra, Can I convert it to Catalina? can you please tell me how to do it? will it erase my data and application? will it effect the performance of the system?
I have Macbook air7,2 . It is worlikg on MacOs High Seirra, Can I convert it to Catalina? can you please tell me how to do it? will it erase my data and application? will it effect the performance of the system?
You can upgrade to Big Sur (MacOS 11). You can also upgrade to Mojave (10.14) or Catalina (10.15).
Big Sur: https://support.apple.com/en-us/HT201475
Catalina or Mojave: https://support.apple.com/en-us/HT211683
Note: if you go to Catalina or Big Sur, some older applications (32-bit) will no longer run, you will need the 64-bit versions of those applications. You may also want to check about your printers, scanners etc. to make sure there are updated drivers available.
Before any upgrade, make sure you have two separate backups of everything that you have tested to ensure you can restore from. This is just in case something goes awry.
But the upgrade can be done "in place" and you should lose no files or data. (see note above about 32-bit). Make sure you have plenty of disk space free, at least 50 GB, which is more than is probably needed but gives you a little "margin."
To be extra careful, you can first boot into Recovery, run Disk Utility First Aid to verify that your file system is healthy. If it passes "ok," then reboot normally and you can apply the update using one of the links above.
You can upgrade to Big Sur (MacOS 11). You can also upgrade to Mojave (10.14) or Catalina (10.15).
Big Sur: https://support.apple.com/en-us/HT201475
Catalina or Mojave: https://support.apple.com/en-us/HT211683
Note: if you go to Catalina or Big Sur, some older applications (32-bit) will no longer run, you will need the 64-bit versions of those applications. You may also want to check about your printers, scanners etc. to make sure there are updated drivers available.
Before any upgrade, make sure you have two separate backups of everything that you have tested to ensure you can restore from. This is just in case something goes awry.
But the upgrade can be done "in place" and you should lose no files or data. (see note above about 32-bit). Make sure you have plenty of disk space free, at least 50 GB, which is more than is probably needed but gives you a little "margin."
To be extra careful, you can first boot into Recovery, run Disk Utility First Aid to verify that your file system is healthy. If it passes "ok," then reboot normally and you can apply the update using one of the links above.
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 Other 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 and Big Sur Only support 64 bit and there is not workaround.
Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs 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.
High Sierra to Catalina conversion