i should add
1) i read
https://www.mobileread.com/forums/showthread.php?t=103266&highlight=restore.py
but did not try to add manually or manipulate with restore.py
2) i istalled Calibre into the folder C:\Calibre, not to the ProgramFiles etc
3) i can't find restore.py neither C:\Calibre or D:\Calibre.Library. I do not understand the path "site-packages\calibre\library\restore.py" cause i see C:\Calibre\Lib folder and can't see C:\Calibre\library\ neither Documents and Settings\Admins\Calibre folders...
thanks