[Drugon]

I'm experiencing the same problem in two differend Windows 10 systems with the same library database (a big one actually, about 16k books).

I received the message:

"The library database at *address* appears to be corrupted.
Do you want calibre to try and rebuild it automatically? The rebuilt may not be completely successful"

I tried out many times but didn't work. Always getting back the same message.

I can open other databases with both systems.

Do you have any ideas, how can I restore my database?

Thank you in advance,
D.