What BR said, but, for what it's worth, I will add that, on some occasions, I've seen some programs behave quite like that on Win 10. It would seem they were not saving any custom settings. Workaround then was running those programs as admin. This eventually ceased happening, or maybe I haven't noticed it happen again since some system/3rd party software change/update, can't tell really. However this has never happened with Calibre, in my case.
Last edited by Comfy.n; 03-07-2024 at 08:09 PM.
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