Calibre won't start

TomSpot · 01-30-2019, 03:03 PM

Directly after installing the latest 64 bit-version of Calibre on Windows 10 Pro Calibre won't come up with the user interface. Clicking the Calibre icon again won't help also.

I've checked this with the latest version and some 3.31 version.

I've also disabled a few startup applications to check whether there's some kind of a problem. The Windows 10 load at Calibre startup is very low.

What can cause this sudden problem?

theducks · 01-30-2019, 03:39 PM

There is a FAQ on this (do check the FAQ's).
But I suspect you may have had a corrupt download

BTW 3.38.1 is the latest

BetterRed · 01-30-2019, 03:59 PM

@TomSpot - if FAQ doesn't help, and reinstall of latest version doesn't work, do this:

Press WinKey+R, type calibre-debug -g, press Enter, this will open a command window and display some information, cut and paste that information here, viz:

Spoiler:

BR

vanbode · 01-31-2019, 03:16 PM

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.

theducks · 01-31-2019, 03:36 PM

That does not indicate a (reportable) issue
What does the Task manager show?

TomSpot · 01-31-2019, 04:07 PM

This subject can be closed. The best advice was the one above to check the FAQ on this particular issue. I've disable my antivirus application. I think metadb.db was causing the problem.

So thanks for the help. Calibre is working flawless again.

BetterRed · 01-31-2019, 04:17 PM

Quote:

Originally Posted by vanbode

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

<snip>

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

@vanbode - try disabling your AV, if that doesn't work try running calibre in Windows Safe Mode.

@TomSpot - if you tell us which AV, we could update the FAQ

BR

theducks · 01-31-2019, 06:56 PM

Quote:

Originally Posted by TomSpot

This subject can be closed. The best advice was the one above to check the FAQ on this particular issue. I've disable my antivirus application. I think metadb.db was causing the problem.

So thanks for the help. Calibre is working flawless again.

If metadata.db was triggering a problem, I would replace your A/V.
metadata.db is a SQL database (data tables), the core of calibre.
What was really terrible, the A/V should always complain loudly when it finds something bad so you know (and avoid doing possible bad places)

vanbode · 02-09-2019, 08:56 PM

Quote:

Originally Posted by BetterRed

@vanbode - try disabling your AV, if that doesn't work try running calibre in Windows Safe Mode.

BR

1.) Disabled Defender
2.) Uninstalled Calibre
3.) Re-install Calibre in administrator mode
4.) Run calibre.

Still fails after splash screen. I'm not new to running Calibre. I've been using the Calibre software for many years. I have almost 11,000 books in my library and everything was working fine until the damn windows update on 1/20. I was hoping Windows had screwed the pooch and would offer an update that cleared up this issue. Nope.

Are there any other hints? Workarounds?

theducks · 02-09-2019, 09:08 PM

Quote:

Originally Posted by vanbode

1.) Disabled Defender
2.) Uninstalled Calibre
3.) Re-install Calibre in administrator mode
4.) Run calibre.

Still fails after splash screen. I'm not new to running Calibre. I've been using the Calibre software for many years. I have almost 11,000 books in my library and everything was working fine until the damn windows update on 1/20. I was hoping Windows had screwed the pooch and would offer an update that cleared up this issue. Nope.

Are there any other hints? Workarounds?

With calibre not running (check the task manager. Just because you don't SEE it on screen...)
Delete (or rename) the Calibre config folder. YOU WILL LOSE ALL PLUGINS AND USER SETTINGS, but NOT the Library.
When you next start Calibre, it might not find the Library if you changed the path/name. No biggie
Right click the Library Icon: Switch/create:Use Existing:< navigate to the Library folder>

kovidgoyal · 02-09-2019, 10:35 PM

There is a list of things to try and how to get more debug info here: https://manual.calibre-ebook.com/faq...ing-on-windows

vanbode · 03-06-2019, 10:45 PM

I ended up doing a windows recovery and reinstalled the OS. Calibre wasn't the only SW that wasn't working. The Vivaldi browser, as well as Google Earth, would not run reliably or at all.

I do want to thank those who responded for the advice.

Thank you.

01-30-2019, 03:03 PM	#1
TomSpot Junior Member Posts: 8 Karma: 10 Join Date: Jul 2018 Device: Samsung Galaxy Tab A 10.1	Calibre won't start Directly after installing the latest 64 bit-version of Calibre on Windows 10 Pro Calibre won't come up with the user interface. Clicking the Calibre icon again won't help also. I've checked this with the latest version and some 3.31 version. I've also disabled a few startup applications to check whether there's some kind of a problem. The Windows 10 load at Calibre startup is very low. What can cause this sudden problem?

01-30-2019, 03:59 PM	#3
BetterRed null operator (he/him) Posts: 21,695 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	@TomSpot - if FAQ doesn't help, and reinstall of latest version doesn't work, do this: Press WinKey+R, type calibre-debug -g, press Enter, this will open a command window and display some information, cut and paste that information here, viz: Spoiler: calibre 3.38.1 [64bit] embedded-python: True is64bit: True Windows-10-10.0.17134-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.17134') Python 2.7.15+ Windows: ('10', '10.0.17134', 'SP0', u'Multiprocessor Free') Interface language: None DEBUG: 0.0 GetFileName::__init__.py - loading translations DEBUG: 0.0 GetFileName::__init__.py - loading translations Successfully initialized third party plugins: CalibreSpy (1, 0, 66) && Barnes & Noble (1, 2, 15) && Generate Cover (1, 5, 21) && Extract ISBN (1, 4, 4) && EpubSplit (2, 6, 0) && Drop Search Results (1, 0, 8) && Favourites Menu (1, 0, 4) && GetFileName (0, 0, 13) && Beam Ebooks (1, 0, 0) && Quality Check (1, 9, 11) && User Category (1, 5, 3) && Find Duplicates (1, 6, 3) && Modify ePub (1, 3, 13) && Count Pages (1, 8, 2) && View Manager (1, 3, 2) && Job Spy (1, 0, 137) && Resize Cover (1, 0, 3) && Reading List (1, 6, 6) && Goodreads (1, 4, 0) Turning on automatic hidpi scaling devicePixelRatio: 1.0 logicalDpi: 120.0 x 120.0 physicalDpi: 123.385199241 x 123.567567568 Using calibre Qt style: True [0.00] Starting up... [0.05] Initializing db... [0.19] db initialized [0.19] Constructing main UI... libpng warning: iCCP: known incorrect sRGB profile CalibreSpy: initialization_complete Job Spy has begun initialization... Calibre, and hence Job Spy, was gracefully shut down last time? True Last time daemon started: never Last time daemon failed: never Total daemon starts inception_to_date: 0 Total daemon failures inception-to-date: 0 libpng warning: iCCP: known incorrect sRGB profile Job Spy has finished initialization... [2.76] main UI initialized... [2.76] Started up in 2.76 seconds with 5 books BR

01-31-2019, 03:16 PM	#4
vanbode Junior Member Posts: 3 Karma: 10 Join Date: Jan 2019 Device: Kindle Fire HD 8.9	Calibre won't start after Windows 10 update on January 20 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.

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01-30-2019, 03:39 PM	#2
theducks Well trained by Cats Posts: 31,003 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	There is a FAQ on this (do check the FAQ's). But I suspect you may have had a corrupt download BTW 3.38.1 is the latest

01-31-2019, 03:36 PM	#5
theducks Well trained by Cats Posts: 31,003 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	That does not indicate a (reportable) issue What does the Task manager show?

01-31-2019, 04:07 PM	#6
TomSpot Junior Member Posts: 8 Karma: 10 Join Date: Jul 2018 Device: Samsung Galaxy Tab A 10.1	This subject can be closed. The best advice was the one above to check the FAQ on this particular issue. I've disable my antivirus application. I think metadb.db was causing the problem. So thanks for the help. Calibre is working flawless again.

02-09-2019, 10:35 PM	#11
kovidgoyal creator of calibre Posts: 45,300 Karma: 27111240 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There is a list of things to try and how to get more debug info here: https://manual.calibre-ebook.com/faq...ing-on-windows

03-06-2019, 10:45 PM	#12
vanbode Junior Member Posts: 3 Karma: 10 Join Date: Jan 2019 Device: Kindle Fire HD 8.9	I ended up doing a windows recovery and reinstalled the OS. Calibre wasn't the only SW that wasn't working. The Vivaldi browser, as well as Google Earth, would not run reliably or at all. I do want to thank those who responded for the advice. Thank you.

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