I tried to install Ubuntu: I loaded it on CD drive and clicked onto "Install Ubuntu" (not "Try Ubuntu"). Then in the window ("Preparing to install Ubuntu") I clicked onto "Continue", then in the next window I chose "wireless" and clicked "Continue".
As installation type I chose "Install Ubuntu alongside Windows 7". After that it showed "Restart to Continue".
When I clicked on "Restart and Continue" a black screen like a command prompt appeared and displayed something like:
- checking battery state
- checking for running unattended-upgrades: speech-dispatcher disable; edit /etc/default/speech-dispatcher
- asking all remaining processes to terminate
Finally after a few seconds the message "Please remove installation media and close the tray (if any) then press enter" appears.
My PC is an ASUS K43SJ core i5.
I didn't follow any guidance because my experience isn't enough in Linux.