Moving from PC to Mac

I want to move my catalogues and images from PSE 10 on a Windows 10 PC to PSE 2025 on a Mac Mini. I’ve succeeded in backing up a small catalogue of 650 images to a destination on the Mac over my home network, but when I try to backup a larger catalogue of 10,000 images, PSE 10 freezes when 34% of the way through estimating the size of the backup. I’ve “optimised” and “repaired” the catalogue, but it freezes at the same point every time.

I’ve tried writing the tags to the image files and then breaking the catalogue into several smaller ones, but PSE 10 fails to transfer a large percentage of the tags to the new catalogue.

I wondered whether I have to install the PSE 2026 free trial to upgrade the PSE 10 on my PC first. I disconnected my PC from the outside world a year ago, so I downloaded the Windows file to my Mac and then moved it to the PC. Unfortunately, the file needs access to the Internet to download the program, and I don’t remember what I did to disconnect it.

How can I get PSE 10 to backup my main catalogue?