Quote:
Originally Posted by Glorfindel
 All books are copied to your C:\Program Files\calibre\Calibre Library\ |
Absolutely not!!!
C:\Program Files is for program files ONLY, just like /usr/bin/
Portable calibre stores the program files together with the library, but but in its own special folder most likely on a flashdrive.
Normally the library is at "%USERPROFILE%\Calibre Library" (or "~/Calibre Library").