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      Ctrl-Alt-Del function with Windows On-Screen Keyboard and Tablet Keyboard - ThinkCentre M70z, M90z, Edge 91z


      Ctrl-Alt-Del function with Windows On-Screen Keyboard and Tablet Keyboard.

      Affected configurations

      The above symptom is associated with, but not limited to, the following systems:

      • ThinkCentre M70z
      • ThinkCentre M90z
      • ThinkCentre Edge 91z

      Applies to:

      Microsoft Windows 7

      The system is configured with touch screen.


      None. Do not replace any hardware for this issue.


      Users operating touch screen systems with no keyboard may have limited use of Ctrl-Alt-Del.

      Windows Secure Login

      In order to issue Ctrl-Alt-Del, the user will need to access the On-screen keyboard available via the Ease of Access tools. Press Windows Key + U to open the Ease of Access menu. Choose to Type without the keyboard (On-screen keyboard) and press OK. The on-screen keyboard will appear and the user should press Ctrl then Alt and then finally the Del key.

      Operating System

      Ctrl-Alt-Del cannot be issued from the On-screen keyboard or Tablet keyboard in the Windows operating system. This limitation is by Microsoft design.


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      • Alias ID: SF11-D0105
      • Document ID: HT050730
      • Letztes Update :17 Jun 2014
      • © 2016 Lenovo