This information really needs to be in:
http://manual.calibre-ebook.com/faq....o-i-backup-app
Just doing a reinstall today, so was wondering about plugin settings, and if they would be saved, when copying over that folder, seems like they will but it's not really clear, and with the " not officially supported" I imagine a some will be worried.
Ps - Having this
C:\Users\....\AppData\Roaming\calibre written in the help file, would have saved me 5min
I know it tells you how to get to that folder - but thats of little use if you have booted into a new Drive sans calibre and are browsing old HD for data.