How to fix a broken JDownloader installation

This tutorial will not fix e.g. the following issues:

• Plugin related issues (e.g. trouble downloading from a specific website or adding an account)
• Issues with your download speed

This tutorial can fix the following issues:

• Old JD installation which fails to update
• FFmpeg installation in JD failing over and over
• JDownloader fails to start

1. Close JDownloader.
2. [Optional] Backup your settings/downloadlist
3. Delete the following files/folders in your JD installation directory:
   Files: Core.jar
   Folders: tmp, update
4. Check if the file JDownloader.jar still exists in your JD directory.
   If not, get it from here -> Choose other -> Download it and copy it in your JDownloader installation directory
5. Restart JDownloader
   If this fails to fix your issues, please contact our support!