Viewer and Editor have stopped working in Calibre

[ianmacdo]

Viewer and Editor have stopped working in Calibre.
If I try to open an epub nothing happens. View or Edit book.

Im running a desktop(too old for win11) with windows 10.
I don't know what version this started with. I usually just use calibre for loading my kobo and that still works fine. It used to work fine though.

calibre-debug -w
---------------
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 81.55183946488295 x 81.64285714285714
ApplicationPaletteChange event ignored
Using calibre Qt style: True
ApplicationPaletteChange event received
Sandboxing disabled by user.

I tried downloading the calibre portable version, still doesn't work.

I tried starting windows in safe mode, and then the viewer now works, but only in safe mode, back in regular mode it does not work.

Thanks for any help.

[BetterRed]

Originally Posted by ianmacdo

Viewer and Editor have stopped working in Calibre.
If I try to open an epub nothing happens. View or Edit book.

Im running a desktop(too old for win11) with windows 10.
I don't know what version this started with. I usually just use calibre for loading my kobo and that still works fine. It used to work fine though.

calibre-debug -w
---------------
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 81.55183946488295 x 81.64285714285714
ApplicationPaletteChange event ignored
Using calibre Qt style: True
ApplicationPaletteChange event received
Sandboxing disabled by user.

I tried downloading the calibre portable version, still doesn't work.

I tried starting windows in safe mode, and then the viewer now works, but only in safe mode, back in regular mode it does not work.

Thanks for any help.

The fact that portable does have the problem, and Safe mode doesn't leads me to conclude the problem is most likely being caused by a 3rd party application that you run at start up.

You can make use of the Windows Task Manager Startup tab to selectively disable programs to determine which one is the culprit.

BR