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

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Lenovo 4271, 4272, 4269, 4265, 4264, 4266, 4263 manual PC-Doctor for DOS, Cleaning an optical mouse

4263, 4266, 4264, 4265, 4269 specifications

Lenovo has established itself as a leader in the technology sector, offering a range of innovative products tailored for various business and personal needs. Among its notable offerings are the Lenovo 4269, 4265, 4263, 4272, and 4266 models, each distinct yet sharing common traits that reflect Lenovo's commitment to quality, performance, and user experience.

The Lenovo 4269 is known for its robust build and reliability, making it an ideal choice for professionals on the move. It typically features a powerful Intel processor, ample RAM, and a solid-state drive (SSD) that ensures quick boot times and efficient multitasking. The laptop's vibrant display often comes with anti-glare technology, allowing users to work comfortably in various lighting conditions. Enhanced connectivity options and security features such as a fingerprint reader contribute to its appeal.

The Lenovo 4265 model is another strong contender, boasting a sleek design complemented by impressive performance metrics. With a focus on productivity, it integrates advanced battery management technology, allowing extended use without the need for frequent charging. Users can benefit from its high-definition webcam, which enhances video conferencing experiences—a critical feature in today's remote working landscape.

The Lenovo 4263 focuses on versatility and portability. It often incorporates a 2-in-1 design, allowing it to transform from a laptop into a tablet seamlessly. This adaptability makes it perfect for creative professionals who require flexibility in their devices. Additionally, its touchscreen interface enhances interaction, making it easier to navigate applications with precision.

The Lenovo 4272 is designed with gamers in mind. It typically hosts a dedicated graphics card, which supports high-resolution gaming and multimedia applications. Enhanced cooling systems assure optimal performance during intense gaming sessions, while customizable keyboard backlighting offers a personal touch for users.

Lastly, the Lenovo 4266 stands out with its emphasis on business solutions. It features advanced enterprise-level security features to protect sensitive data, coupled with performance specifications designed to handle demanding business applications.

In summary, the Lenovo 4269, 4265, 4263, 4272, and 4266 models showcase Lenovo's dedication to combining technology with user-centric design. Each model caters to specific needs—be it mobility, productivity, versatility, gaming, or business applications—ensuring that users find a machine that aligns perfectly with their requirements. Lenovo continues to innovate and evolve, setting benchmarks in the laptop market.