Please visit this page, select your operating system (Windows) and click “Find Your System Profile”. Send me the system profile so I can check your system specs. Topaz Photo AI System Requirements
Where are you installing Topaz Photo AI to? Is it the default location on the C: drive or somewhere else?
What was the folder permission error that you were seeing before?
This is not a machine-related issue, I have two machines, both very high-spec Asus Tuf Gaming Laptop/Custom Built Graphic Design Desktop, Both running Windows 11 Pro.
Both PCs had identical issues, at first neither would download and install updates,
I then removed and did fresh installs on both machines, The install worked but the problems I outlined are identical on both i.e. crashing on save images, and text not displaying correctly on the UI.
I do not have a working copy on any machine currently.
If this were a widespread issue then I would expect to see many other reports of it. It would help to see your system profile to check what exactly the cause could be.