I removed the disk and put it into an external USB case and attached it to a different computer. With that computer, I ran TestDisk. TestDisk sees the drive

It also sees the correct partition structure

But when I take the next step and click Quick Search, the analyse process never gets past 00%

I don't need to repair the disk, I've already moved on. I only want to retrieve a handful of files that hadn't made it into my daily backup. Any ideas how I can proceed?