Maybe open Task Manager and take a look at anki.exe. It should spawn QtWebEngineProcess.
If there’s no QtWebEngineProcess, close Anki, open Command Prompt and try to run Anki with this command.
set "QTWEBENGINEPROCESS_PATH=%LocalAppData%\Programs\Anki\lib\PyQt6\Qt6\bin\QtWebEngineProcess.exe" & "%LocalAppData%\Programs\Anki\anki-console"
If it doesn’t help or QtWebEngineProcess exists, maybe run this command at first to tell Anki and Qt to output more debugging information
set ANKIDEV=1 & set QSG_INFO=1 & set "QT_LOGGING_RULES=qt.webenginecontext.debug=true"
and then try to open Anki using this command
set "QTWEBENGINE_CHROMIUM_FLAGS=--no-sandbox --disable-gpu" & "%LocalAppData%\Programs\Anki\anki-console"
and also this one
set "ANKI_SOFTWAREOPENGL=1" & "%LocalAppData%\Programs\Anki\anki-console"
If nothing worked, and changing the video driver from the Preferences screen to Direct3D, OpenGL or Software didn’t help either,
- try to remove or update your graphics card driver
- try the latest Qt5 version from Releases · ankitects/anki · GitHub
- try running Anki from Python - Running from Python - Anki FAQs