Windows Explorer crashes on right click at left pane

To recreate this crash:
1. Open Windows File Explorer

2. Right mouse click on any item in the left pane in order to open the context popup menu

3. File Explorer will crash

Work around to solve it:
Disable the shell extension: Avira.SystemSpeedup.UI.ShellExtension.SystemSpeedupContextMenu+SystemSpeedupDesktopMenu

I'm not a registered user of Avira so I am not allowed to send them any crash reports.
Thank you.