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How to Disable Audio Devices on Lenovo Desktop

Location of serial numbers on the Lenovo desktop.


The files for GMetrix are missing.

This error usually occurs when the “GMetrix Templates Directory” ┬áis not set to C:\TEMP. To correct the problem please update the settings as described below.


  1. Click on the gear icon to open the OPTIONS properties.GMetrix2
  2. Change the “GMetrix Templates Directory” to C:\TEMP and click “Save”

Temporary fix for the screen resolution problem.

Change default playback for ELLIS on the Lenovo ThinkCentre

Microphone and headphone jack on the new Lenovo ThinkCentre.

Microsoft contact info for Digital Literacy problems.

From Microsoft Website

What should I do if I find a content error?

If you find an error in the content, check for an existing report in the Knowledge Base at You can search using the course title. If the error is not in the Knowledge Base, send an email message with detailed information to so that we can investigate the problem. We appreciate your feedback.