bela1950,  In addition to what Jim stated...  Airplane Mode - Turn On or Off in Windows 8   Rick
Hello I have a 15r inspiron laptop with Windows 8. My newest problem surfaced today.  Suddenly my laptop kept disconnecting my wireless connection and turning on airplane mode.  Finally it is stuck in airplane mode and I am unable to connect wireless. I have a Dell Wireless 1705 card.  I tried everything including restoring to factory default settings.  It also states my Ethernet connection is unplugged.  It is not since I have my tablet connecting fine.  This all started when I tried to check for windows updates. Any help is appreciated.  I never experienced so many problems with a computer. It seems that I am always fixing something.
Airplane Mode stuck, Press FN + PrtScn