[vanbode]

Calibre will not start after the recent Windows update. I'm running Windows 10 Home Version 1809

Here's the output from "calibre-debug -g":

C:\Program Files\Calibre2>calibre-debug --gui
calibre 3.38.1 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.17763-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.17763')
Python 2.7.15+
Windows: ('10', '10.0.17763', 'SP0', u'Multiprocessor Free')
Interface language: None
Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 55.4181818182 x 54.864
Using calibre Qt style: True
[0.00] Starting up...
[0.00] Showing splash screen...
[0.19] splash screen shown
[0.19] Initializing db...
[1.23] db initialized
[1.23] Constructing main UI...
[4.59] main UI initialized...
[4.59] Hiding splash screen

I've deleted and reinstalled the latest version of calibre. I've run ccleaner to cleanup registry issues.