Downgrade mac os

soupdragon

soupdragon

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Tony
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Hello.

My mac updated itself to os Ventura.
This has paralyzed my version 8 of Silverfast se plus.
My question is, can I downgrade to os monterey?
 
ecoleman said:
Nope. Only way to go back is to restore from a backup.
Do you have time machine setup?
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I do have a Time Machine backup but the base system won't let me use it.
 
I think you should be able to wipe the disk, install the original MacOS version, then use the Time Machine. It is done in Recovery Mode,
 
What is the issue with the software? There are often workarounds to get older software working that may be simpler than reverting the OS
 
Pound Coin said:
I think you should be able to wipe the disk, install the original MacOS version, then use the Time Machine. It is done in Recovery Mode,
Click to expand...
It's been a while since I OSXed but this certainly used to be possible. The tricky bit is that unless you have saved it, Apple sometimes make it hard to obtain to installation files for an old OS. Check in your "purchase" history at the store.
 
Silverfast has upgrades available to latest versions, is that possible? You'd need the serial number, which for older software can be a problem (well it is for me!)
 
Rapscallion said:
What is the issue with the software? There are often workarounds to get older software working that may be simpler than reverting the OS
Click to expand...
Silverfast 8 SE will not work on mac Ventura. It did work on Monterey.
 
JonathanRyan said:
It's been a while since I OSXed but this certainly used to be possible. The tricky bit is that unless you have saved it, Apple sometimes make it hard to obtain to installation files for an old OS. Check in your "purchase" history at the store.
Click to expand...
I managed to download a disk image of Monterey.
The problem is, even after erasing the disk and going back into recovery mode, it just defaults to downloading and installing Ventura.
In days gone by it used to install whatever the machine had on it at the time of purchase.
 
Pound Coin said:
Silverfast has upgrades available to latest versions, is that possible? You'd need the serial number, which for older software can be a problem (well it is for me!)
Click to expand...
Silverfast is at ver 9 now but there is a fairly hefty price to pay to upgrade.
 
soupdragon said:
I managed to download a disk image of Monterey.
The problem is, even after erasing the disk and going back into recovery mode, it just defaults to downloading and installing Ventura.
In days gone by it used to install whatever the machine had on it at the time of purchase.
Click to expand...
Take a look at the instructions here
mrmacintosh.com

Can I Upgrade or Downgrade macOS? Every Mac From 2006-2020

What is the Minimum or Maximum version of macOS that I can install on my Mac? Can I Upgrade or Downgrade macOS on my Mac? I list every Mac from 2006-2020.
mrmacintosh.com mrmacintosh.com
 
Big thanks to Rapscallion for finding the information for me.
The instructions on the link worked first time.

I still can't install Silverfast though as it now looks like the bundled software is for windows only.
 
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