Thank you very much.

Yes, all is ok after message and boot, but for my students this message is very annoying. How can I avoid receiving this message?

After a fresh installation of SalixOS LiveXfce 13.37 on my TDK 8 GB usb key all is ok in my computer. But when system starts a message like this is displayed: "Error prefix is not set". After some attempt to start from floppy or other devices, system boots regularly . This kind of starting is very ...

Hi thenktor,
thank you very much for the suggestions and attention, I solved the problem.
The situation has not changed even disabling automatic window opening in Thunar settings.
But with ps aux | grep -i thunar I found many active processes thunar. After killing them, the situation is back to ...

I checked (ps aux |grep thunar) for more thunar processes running than needed. No thunar process is running before usb stick insertion, and the same happens after.
I noticed that the same effect (multiple windows) happens even when I insert a CD into the player.

Hello thenktor,
after your answer I did several tests with usb sticks. Well, the message following the insertion of the USB key is not replicated when opening multiple windows. But if I insert another usb stick a new similar message appears, only one time while another set of multiple windows is ...

Hi, thenktor
thanks for your tip, this is the result after insertion of USB stick:

Oct 4 22:56:45 darkstar kernel: [19738.059011] usb 1-5: new high speed USB device using ehci_hcd and address 3
Oct 4 22:56:45 darkstar kernel: [19738.183318] usb 1-5: New USB device found, idVendor=13fe, idProduct ...

Salix Xfce 13.37

After a fresh installation of Salix 13.37 all is ok in my computer. But after some time two windows are opened on my desktop when I insert an usb key. After another some time the number of windows is duplicated, and so on. Now, when I insert an usb key, 16 windows are opened.
The problem is very ...