I used to see my windows partition under devices. I could then click on the icon, mount the device, and access the files. This no longer works. Note that I haven't used the Linux system for a few months.

I gather from the wording of your post that this used to work.

Please read this and provide more information, such as what distro/version you are running, what changes have been made between when it worked and when it stopped working, and so on.

I'm using OpenSUSE Leap 15.1 and I haven't done much of anything with the system since last September.

So it's a dual boot? Did you ensure that it was a clean (full, not fast) shutdown of windows?

Have you tried mounting a partition manually to see what is said?

My mistake; I probably remembered it incorrectly. Under "devices" there are two icons labeled "OS" and "35.0 GiB Hard Drive". The first is my windows partition and the second the partition containing the Linux system. My only excuse is that I'm not sure where those labels came from but I don't believe I provided either of them. I assume they were automatically generated when I installed the Linux system. Anyway, clicking on the "OS" icon gets me to the Windows partition (after the supervisor password is entered). So all is well.

Thanks for the rest of the story. Your response may help someone else in the future.