tools and controls disappear upon reopening illustrator

[SRSDTU]

Dear forum, any idea why all controls and tools are gone every time I open Illustrator ( and indesign ) and have to be re-opened and arranged in the side panel windows again? - it seems like the software cannot remember how I arranged my tools from the previous session/works. 

help is much appreciated 🙂 

[Monika Gause · Accepted solution]

Could be your preferences file. They can go corrupt. You could try: https://helpx.adobe.com/de/illustrator/kb/troubleshoot-preference-issues.html

If you reset the preferences, all your settings will be gone. You can preserve your preferences by renaming the preferences folder when Illustrator has been closed.

[SRSDTU]

Thank you very much, Monika - that did the trick simply 😄  have a nice day and thanks for the fast response - best regards from sune

[Ton Frederiks]

And check if the apps have writing permissions.

[SRSDTU]

Thanks Ton 🙂 - have a nice day