Windows Vista - http://www.vistaarticles.com
This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)
http://www.vistaarticles.com/articles/488/1/This-device-is-not-present%2C-is-not-working-properly%2C-or-does-not-have-all-its-drivers-installed.-%28Code-24%29
By 
Published on 11/16/2007
 
This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)
This device is not present, not working. (Code 24)

The device does not appear to be present. The problem could be bad hardware, or a new driver might be needed.

Devices stay in this state if they have been prepared for removal. After you remove the device, this error disappears.

On the General Properties tab of the device, click Troubleshoot to start the Troubleshooting Wizard.