Uninstall Retail but not Classic? - still taking up a lot of space

I only play WoW Classic and I want to free some space on my computer - the WoW folder is over 90GB. I uninstalled the Retail version through the battle.net area, but that hardly removed anything. Is there a way to remove all of the Retail version stuff and just keep the Classic stuff? I am assuming WoW Classic doesn’t really use over 90GB?

If you have any PTR or Beta clients, they can add to the totals.

Most of the “stuff” is common between Retail and Classic, so removing Retail would save only about 1G. The “Data” folder is 70-80 G and common to both, so don’t expect much savings from deleting one but not the other.

Classic should be much smaller than 90GB if it’s the only client installed.

I saw all of the files in the Data folder, separate from the retail and classic folders and those are huge.

I really didn’t want to, but I may try deleting everything and then just installing classic. I just hope that it doesn’t just add all of that stuff back.

It shouldn’t, as the required disk space for the Classic install is far less than 90GB.