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Log in says Press CTRL + Alt + Delete or use the Windows Security button to unlock this computer. Nothing happens when I press CTRL Alt Delete. So, where is the Windows Security Button?

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The Windows Security button is an extra button on most Tablet PCs.

Here is a picture showing its location for a Compaq Tablet PC tc1100:

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Reference Compaq Tablet PC tc1100, tc1000 - Identifying the Buttons

Windows Security Button

Security Button: Press the Windows Security Button with the pen tip or a small object like the end of a paper clip to enter the Ctrl +Alt +Delete command while you are in Windows or the reset command while you are in Setup utility. Ctrl +Alt +Delete command cannot be entered using the Ctrl , Alt , and Delete keys on the on-screen keyboard.

Ctrl +Alt +Delete Function: When the tablet PC is in Windows, the Windows Security button clears your work from the screen and displays the Windows Security window in which you can lock, log off, or shut down the tablet PC, initiate Standby or Hibernation, or open Task Manager.

  • The Shut Down option in the Ctrl +Alt +Delete window enables you to safely shut down the tablet PC if the system has become unresponsive.
  • Task Manager displays the status of all open applications and enables you to close an application that has become unresponsive. If the system remains unresponsive after selecting Shut Down in the Windows Security window, slide and hold the power switch for 4 seconds. For information about using the Ctrl +Alt +Delete command in non-Windows applications, refer to the application documentation.

Reset Function: When the Setup utility is open, the Windows Security button simulates the reset button found on some computers. When the tablet PC is reset, the tablet PC restarts and all unsaved information is lost. The reset function can be used to restore functionality when the system has become unresponsive. For information about Setup utility, refer to the Managing System BIOS module.

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