My prior desktop running Win 10 Pro failed last week and I opted to build a new desktop rather than trying to repair 10 year old hardware. I opted for a Windows Home perpetual over the Win 7 Pro OEM (upgraded to 10) that I ran in my prior build.
I was able to locate and copy over my PS 2021 roaming settings. While patterns came back, actions and my custom palette groups did not. My downloaded/installed palettes such as Ben Moore palette libraries did come back, but the custome palette groups I created did not. I did not export my custom palettes at any time. Is there any way to get them back?
Similar story with actions; however, I'm not aware of a way to export actions. As far as I know, when you create them they should be saved locally.
"As far as I know, when you create them they should be saved locally."
Wrong! If you do not save actions manually you may lose them. For help with actions on another computer wait for someone else with more experience and knowledge on recovering unsaved actions topic like @Stephen_A_Marsh
You may or may not be able to recover actions if you can find and copy this file to the new system.
I created a script to open various files to manually create a backup. As it is run from the current installation/version of Photoshop, it will not be of much help to you. If you have access to the previous file system in a backup, then you could look for your old data in the following directory paths. Replace username with your user account name and the version name of Photoshop.