Hello,
I was browsing the English forum and I found that other users are facing the exception error message when exiting the control panel, with XAMPP complaining not being able to write to xampp-control.ini. I was also having this error message today, although I installed XAMPP inside my own user directory, not in the Program Files directory (to avoid access right issues, precisely). Searching elsewhere on the web, I found other users with the same problem, and I found a temporary fix* (see URL below). A user suggested right-clicking the xampp-control.ini file in the XAMPP installation directory, going to Properties > Security > Modify > Everyone, and granting all access. Then you can start and quit the XAMPP control panel as a regular user without having the exception error message popping up. Could someone forward this trick to the XAMPP development team, please? Hopefully this will be fixed for the next update
Thank you and happy coding
* https://stackoverflow.com/questions/38676374/why-xampp-control-panel-shows-an-error-access-denied-upon-launch