Error code on starting calibre

AlanWojnaroski · 10-18-2025, 06:22 PM

calibre 8.13 embedded-python: True
Windows-10-10.0.26200-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.26200')
Python 3.11.14
Windows: ('10', '10.0.26200', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: DeDRM (7, 2, 1)
wpd.WPDError: C:\r\src\src\calibre\devices\mtp\windows\content_e numeration.cpp:439:Failed to EnumObjects() of folder from device:[hr=0x80042009 wCode=7689 name=INVALID_OBJECT_HANDLE] IDispatch error #7689: o16

PeterT · 10-18-2025, 06:36 PM

Do you have a device currently attached? If so unplug it and try again. Plug the device in after starting calibre and see if that helps

DNSB · 10-18-2025, 08:02 PM

You may also want to update your plugins. The DeDRM plugin is very out of date.

If you have an Android device plugged into your computer while starting calibre, try unplugging it and seeing if the error goes away. In previous reports, this has been linked to an issue trying to enumerate files on an µSD card. Removing the card, reformatting it or trying a different card seems to have worked for several people.

dunhill · 10-19-2025, 11:04 AM

It also seems to me that the error is due to the outdated plugin. I think I remember some comment on the forum about this.

10-18-2025, 06:22 PM	#1
AlanWojnaroski Junior Member Posts: 1 Karma: 10 Join Date: Oct 2025 Device: 2023 kindle fire hd	Error code on starting calibre calibre 8.13 embedded-python: True Windows-10-10.0.26200-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.26200') Python 3.11.14 Windows: ('10', '10.0.26200', 'SP0', 'Multiprocessor Free') Interface language: None EXE path: C:\Program Files\Calibre2\calibre.exe Successfully initialized third party plugins: DeDRM (7, 2, 1) wpd.WPDError: C:\r\src\src\calibre\devices\mtp\windows\content_e numeration.cpp:439:Failed to EnumObjects() of folder from device:[hr=0x80042009 wCode=7689 name=INVALID_OBJECT_HANDLE] IDispatch error #7689: o16

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10-18-2025, 06:36 PM	#2
PeterT Grand Sorcerer Posts: 13,682 Karma: 79983758 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	Do you have a device currently attached? If so unplug it and try again. Plug the device in after starting calibre and see if that helps

10-18-2025, 08:02 PM	#3
DNSB Bibliophagist Posts: 47,921 Karma: 174315098 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	You may also want to update your plugins. The DeDRM plugin is very out of date. If you have an Android device plugged into your computer while starting calibre, try unplugging it and seeing if the error goes away. In previous reports, this has been linked to an issue trying to enumerate files on an µSD card. Removing the card, reformatting it or trying a different card seems to have worked for several people.

10-19-2025, 11:04 AM	#4
dunhill Guru Posts: 917 Karma: 810834 Join Date: Sep 2017 Location: Buenos Aires, Argentina Device: moon+ reader, kindle paperwhite	It also seems to me that the error is due to the outdated plugin. I think I remember some comment on the forum about this.

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