[Akedos]

Originally Posted by kovidgoyal

What does


calibre-debug -w

do? And try a clean install, uninstall, delete c:/program files/calibre2 and re-install, the beta from: https://www.mobileread.com/forums/sh...d.php?t=333686

Microsoft Windows [Version 10.0.19041.508]
(c) 2020 Microsoft Corporation. All rights reserved.

C:\Users\admin>calibre-debug -g
calibre 5.1 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.19041-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19041')
Python 3.8.5
Windows: ('10', '10.0.19041', 'SP0', 'Multiprocessor Free')
Interface language: None
Turning on automatic hidpi scaling

C:\Users\admin>calibre-debug -w
Turning on automatic hidpi scaling

C:\Users\admin>

uninstalling and reinstalling now.