Installation troubleshooting

Whenever the installation fails for unknown reasons or crashes, it should leave a crash log in the tamp directory for example in C:\Users\username\AppData\Local\Temp\install4jError1234567891234567890.log.
This error log may contain more information.

Windows user: installation fails due to problems with ClearType settings.

Execute the following CMD command and try again:

reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /t REG_DWORD /v FontSmoothingGamma /d 1024 /f

Tags: Error log may contain: "Caused by: java.lang.IllegalArgumentException: XX incompatible with Text-specific LCD contrast key"

Credits and technical background:

• https://stackoverflow.com/questions/21444846/swing-apps-doesnt-run
• https://www.reddit.com/r/Windows10/comments/1dv5afe/how_to_reset_cleartype_settings_to_initial_ones/

Windows & Apple/Mac users: Error "No Internet Connection" error during installation

Read this: https://support.jdownloader.org/knowledgebase/article/no-internet-connection-error-during-the-installation-process

Windows users: Optional software offers were installed by mistake, what can I do?

Read this: https://support.jdownloader.org/de/knowledgebase/article/software-offers-during-installation