Lenovo 4271, 4272, 4269 PC-Doctor for DOS, Cleaning an optical mouse, Creating a diagnostic disc

For additional information about running the PC-Doctor for Rescue and Recovery program, refer to the PC-Doctor for Rescue and Recovery help system.

Note: If you encounter failures that prevent you from gaining access to the Rescue and Recovery workspace, you can run the PC-Doctor for Rescue and Recovery program after using a rescue medium to recover the computer from failures and gaining access to the Rescue and Recovery workspace. See “Creating and using a rescue medium” on page 49.

PC-Doctor for DOS

You can also download the latest version of the PC-Doctor for DOS diagnostic program from http://www.lenovo.com/support. The PC-Doctor for DOS diagnostic program runs independently of the Windows operating system. Use the PC-Doctor for DOS diagnostic program if you are unable to start the Windows operating system. You can run the PC-Doctor for DOS diagnostic program from a diagnostic disc that you created.

Creating a diagnostic disc

This section provides instructions on how to create a diagnostic disc.

To create a diagnostic disc, do the following:

1.Download a self-starting bootable disc image (known as an ISO image) of the diagnostic program from:

http://www.lenovo.com/support

2.Use any CD/DVD burning software to create a diagnostic disc with the ISO image.

Running the diagnostic program from the diagnostic disc

This section provides instructions on how to run the diagnostic program from the diagnostic disc that you created.

To run the diagnostic program from the diagnostic disc that you created, do the following:

1.Make sure that your computer is turned off.

2.Repeatedly press and release the F12 key when turning on the computer. When the Startup Device Menu opens, release the F12 key.

3.Insert the diagnostic disc into the optical drive.

4.Select the optical drive with the diagnostic disc as the startup device and press Enter. The diagnostic program opens.

5.Follow the instructions on the screen to run the desired diagnostic test. For additional help, press the F1 key.

6.Remove the diagnostic disc from the optical drive after completing the diagnostic test.

Cleaning an optical mouse

This section provides instructions on how to clean an optical mouse.

An optical mouse uses a LED and an optical sensor to navigate the pointer. If the pointer on the screen does not move smoothly with the optical mouse, you might need to clean the mouse.

To clean an optical mouse, do the following:

Chapter 7. Troubleshooting and diagnostic programs 69