Silently crash

[RoVRy]

qBittorrent & operating system versions

qBittorrent 5.2.3 x64
OS: Windows 11 Pro x64 (25H2) 26200.8524

What is the problem?

qB silently crashing without any pop-ups after every launch.
Windows Events Journal contains following:

Fault application name: qbittorrent.exe, version: 5.2.3.0, timestamp: 0x6a4c1f3a
Fault module name: qbittorrent.exe, version: 5.2.3.0, timestamp: 0x6a4c1f3a
Exception code: 0xc0000005
Error offset: 0x000000000000ab82
Faulty process id: 0x420C
Faulty application start time: 0x1DD21BA3554419C
Faulty application path: C:\Program Files\qBittorrent\qbittorrent.exe
Faulty module path: C:\Program Files\qBittorrent\qbittorrent.exe
Report id: 7a98dd9c-40ec-4a97-8528-f69f4178d39e
Faulty package full name:
Application code related to faulty package:

Steps to reproduce

1. Start qB
2. Waiting for UI appears
3. Waiting about 1-2 seconds.
4. qB closes silently.

Additional context

No response

Log(s) & preferences file(s)

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
  <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" /> 
  <EventID>1000</EventID> 
  <Version>0</Version> 
  <Level>2</Level> 
  <Task>100</Task> 
  <Opcode>0</Opcode> 
  <Keywords>0x8000000000000000</Keywords> 
  <TimeCreated SystemTime="2026-08-01T13:32:41.7271908Z" /> 
  <EventRecordID>78678</EventRecordID> 
  <Correlation /> 
  <Execution ProcessID="9292" ThreadID="3224" /> 
  <Channel>Application</Channel> 
  <Computer>HOME43</Computer> 
  <Security UserID="S-1-5-21-..." /> 
  </System>
<EventData>
  <Data Name="AppName">qbittorrent.exe</Data> 
  <Data Name="AppVersion">5.2.3.0</Data> 
  <Data Name="AppTimeStamp">6a4c1f3a</Data> 
  <Data Name="ModuleName">qbittorrent.exe</Data> 
  <Data Name="ModuleVersion">5.2.3.0</Data> 
  <Data Name="ModuleTimeStamp">6a4c1f3a</Data> 
  <Data Name="ExceptionCode">c0000005</Data> 
  <Data Name="FaultingOffset">000000000000ab82</Data> 
  <Data Name="ProcessId">0x420c</Data> 
  <Data Name="ProcessCreationTime">0x1dd21ba3554419c</Data> 
  <Data Name="AppPath">C:\Program Files\qBittorrent\qbittorrent.exe</Data> 
  <Data Name="ModulePath">C:\Program Files\qBittorrent\qbittorrent.exe</Data> 
  <Data Name="IntegratorReportId">7a98dd9c-40ec-4a97-8528-f69f4178d39e</Data> 
  <Data Name="PackageFullName" /> 
  <Data Name="PackageRelativeAppId" /> 
  </EventData>
  </Event>

qt.conf in qBittorrent folder:

[Paths]
Translations = translations

[Platforms]
;WindowsArguments = dpiawareness=1
WindowsArguments = darkmode=0

[sysdump]

Exception code: 0xc0000005 usually means Access violation.
You could have broken hardware or corrupt files. Its hard to tell.
It is worth to run "sfc /scannow" to let windows check for corrupt system files.

---

Did you not get any logfile in %LOCALAPPDATA%\qBittorrent? (default qBittorent paths)

Is it a fresh install or something that started occurring in an existing installation?

Do you have some aggressive antivirus installed that could be blocking qBitorrent? Check AV logs.

[RoVRy]

Exception code: 0xc0000005 usually means Access violation. You could have broken hardware or corrupt files. Its hard to tell. It is worth to run "sfc /scannow" to let windows check for corrupt system files.

System health and memory has been checked recently.

Did you not get any logfile in %LOCALAPPDATA%\qBittorrent? (default qBittorent paths)

%LOCALAPPDATA%\qBittorrent\Logs is empty.

Is it a fresh install or something that started occurring in an existing installation?

It begins after update from 5.2.1 (not clean install)

Do you have some aggressive antivirus installed that could be blocking qBitorrent? Check AV logs.

There is internal Windows AV only. Working as is.

[sysdump]

And just to make sure; the installer is an official one downloaded from SourceForge or or here on GitHub?

[RoVRy]

And just to make sure; the installer is an official one downloaded from SourceForge or or here on GitHub?

From SF.
SHA1: 01066f18179c5769ff3912114a1a8f68ebb8cd34 *qbittorrent_5.2.3_lt20_x64_setup.exe

[qBittUser]

@wolf075 you're using outdated unsupported version. You're supposed to create your own separate new issue report, especially because your OS and qBit version don't match with what's in opening post.

[qBittUser]

@RoVRy

26200.8524

That's older than latest qBit, so consider to update your Windows OS, then maybe will have less compatibility issues.

Logs is empty

Then open and edit configuration file and enable logs.

qt.conf

Wrong file, correct more important file is qBittorrent.ini file where's more options saved at. You can either add it to .zip file or change file extension to .txt and then include it in your opening post.

https://github.com/qbittorrent/qbittorrent/wiki/frequently-asked-questions#user-content-Where_does_qBittorrent_save_its_settings

not clean install

Then consider to backup current preferences, then reset settings by deleting, renaming qBittorrent.ini file or by uninstalling qBit and then select to delete your settings.

https://github.com/qbittorrent/qbittorrent/wiki/frequently-asked-questions#user-content-How_can_I_reset_the_settings_to_default_values

Otherwise you can also temporarily create a profile folder where's qBittorrent installed at to try portable mode to see if using default options work.

https://github.com/qbittorrent/qBittorrent/wiki/How-to-use-portable-mode

[qBittUser]

@wolf075

... console says I have the latest version

Try using official installer to get latest supported version on Linux.

https://www.qbittorrent.org/download

[qBittUser]

@wolf075 you included unrelated things with your reply.

4.6.7

That's not the latest. Use official installer, otherwise update your OS, then you might get something newer on Linux.

[xavier2k6]

@RoVRy Please post any/all qbittorrent*.dmp files from %LOCALAPPDATA%\CrashDumps

[xavier2k6]

@wolf075 Please install latest qBittorrent using AppImage from https://www.qbittorrent.org/download#linux

[RoVRy]

@xavier2k6

CrashDumps_Ini.zip

@qBittUser

@RoVRy

26200.8524

That's older than latest qBit, so consider to update your Windows OS, then maybe will have less compatibility issues.

Seriously? Good luck to find newer.

[sysdump]

Well, windows11-release-information shows your version to be released on 2026-05-26, and it lists newer versions.

[xavier2k6]

@RoVRy Do you have a qbittorrent.pdb file where qbittorrent is installed?