New PC - New Installs of Calibre and DRM Plugin Problems

[JayDee56]

I recently switched to a new PC and had to reinstall Calibre and the plugins. Calibre version 8.10 and DRM tools 10.0.9 I'm trying to import and DRM a book released in 2021 but it's giving me a "This book is locked by DRM" message. Any help on what I've done wrong with the reinstalls would be appreciated. Here's the log:

ApplicationPaletteChange event ignored
Using calibre Qt style: True
ApplicationPaletteChange event received
Exception in thread Thread-1:
Traceback (most recent call last):
File "threading.py", line 1045, in _bootstrap_inner
File "calibre\utils\fonts\scanner.py", line 312, in run
File "calibre\utils\fonts\scanner.py", line 315, in do_scan
File "calibre\utils\fonts\scanner.py", line 304, in reload_cache
File "calibre\utils\config.py", line 320, in init
File "calibre\utils\config.py", line 349, in refresh
File "calibre\utils\config_base.py", line 378, in read_data
File "calibre\utils\config_base.py", line 361, in retry_on_fail
File "calibre\utils\config_base.py", line 376, in r
PermissionError: [Errno 13] Permission denied: 'C:\Users\jayde\AppData\Roaming\calibre\fonts\scanner_cache.json'
calibre Debug log
calibre 8.10 embedded-python: True
Windows-10-10.0.26100-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.26100')
Python 3.11.12
Windows: ('10', '10.0.26100', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
Successfully initialized third party plugins: DeDRM (10, 0, 9) && Obok DeDRM (10, 0, 9)
calibre 8.10 embedded-python: True
Windows-10-10.0.26100-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.26100')
Python 3.11.12
Windows: ('10', '10.0.26100', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
Successfully initialized third party plugins: DeDRM (10, 0, 9) && Obok DeDRM (10, 0, 9)
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 91.84180790960451 x 91.7458193979933
[0.00] Starting up...
[0.00] Showing splash screen...
[1.17] splash screen shown
[1.17] Initializing db...
[1.27] db initialized
[1.27] Constructing main UI...
DEBUG: 0.0 obok::utilities.py - loading translations
DEBUG: 0.0 obok::dialogs.py - loading translations
DEBUG: 0.0 obok::config.py - loading translations
DEBUG: 0.0 obok::action_err.py - loading translations
[1.86] GUI main window shown
[1.89] main UI initialized...
[1.89] Hiding splash screen
[1.89] splash screen hidden
[1.89] Started up in 1.89 seconds with 2471 books
DeDRM v10.0.9: Trying to decrypt B08F4ZQTQC_EBOK.azw
Running file type plugin DeDRM failed with traceback:
Traceback (most recent call last):
File "calibre\customize\ui.py", line 214, in _run_filetype_plugins
File "calibre_plugins.dedrm.init", line 1030, in run
File "calibre_plugins.dedrm.init", line 920, in KindleMobiDecrypt
File "C:\Users\jayde\AppData\Roaming\calibre\plugins\DeDRM.zip\prefs.py", line 48, in init
File "calibre\utils\config.py", line 320, in init
File "calibre\utils\config.py", line 349, in refresh
File "calibre\utils\config_base.py", line 378, in read_data
File "calibre\utils\config_base.py", line 361, in retry_on_fail
File "calibre\utils\config_base.py", line 376, in r
PermissionError: [Errno 13] Permission denied: 'C:\Users\jayde\AppData\Roaming\calibre\plugins\dedrm.json'
stdout+stderr from file dialog helper: [b'', b'']
piped data from file dialog helper: [b'\x1f';\xc5\xcde"\x0b\xa0\xca\x14\xbd\xae\xa5\xbeZ\xfazUY\x9f\x83\x15EA\x9c\xf8H\x90\xde\x01\xd2', b'D:\My Kindle Content\B08F4ZQTQC_EBOK.azw']
Added The Sweetness of Water (Oprah's Book Club) to db in: 0.0
Added 1 books in 0.7 seconds
Worker Launch took: 0.00 seconds
[22.56] Shutdown starting...
[24.83] Shutdown complete, quitting...

[ElleKayEm]

The book needs to be downloaded with no more recent than Kindle for PC 2.4.0 (70904) aka 2.4.70904 on the same computer and user as calibre with DeDRM 10.0.9. And you need to install the KFX Input plugin.

There is also this error:

PermissionError: [Errno 13] Permission denied: 'C:\Users\jayde\AppData\Roaming\calibre\plugins\dedrm.json'

Something seems to be preventing access to that file. Don't know what might be causing that or how you can resolve it.

[JayDee56]

My Kindle Version is 1.17.0

I did see that "Permission denied" line and I went into the folder and took ownership. I'll keep digging.

[ElleKayEm]

Ah, then no need for the KFX Input. You should have the older format there and DeDRM should work. Must be something to do with that read/write error.

[JayDee56]

Thank you for your help. I went to that Plugin folder and noticed that the file "dedrm.json" had the same date as the date I first started reinstalling things on the new PC even though the plugins had today's date. (I had removed and reinstalled the plugins from inside Calibre earlier) I manually deleted all the Plugins from the Plugin folder then reinstalled through Calibre. Now it's working.
P.S. I hate getting my PC back to "Me" after reinstalling or getting a new copy of Windows. Thanks again.

[ElleKayEm]

Thanks for reporting back how you resolved it. Glad you got it working.