Action: Run the Windows Disk Defragmenter program.

Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk drive, the disk defragmentation process might take up to several hours to complete.

On the Windows 7 operating system, do the following:

1.Close any programs that are currently running and close any open windows.

2.Click Start Computer.

3.Right-click your C drive entry and then click Properties.

4.Click the Tools tab.

5.Click Defragment Now, then click Continue.

6.Click Defragment Now again to start a disk-defragmentation process.

Insufficient memory

Symptom: Insufficient memory

In general, the more memory that is installed, the better the Windows operating system runs.

Action: Install additional memory. For information about purchasing memory, see Chapter 12 “Getting information, help, and service” on page 103. For step-by-step instructions on installing memory, see “Installing or replacing a memory module” on page 38.

If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see Chapter 12 “Getting information, help, and service” on page 103.

Printer problems

Symptom: The printer does not work.

Actions: Verify that:

1.The printer is turned on and is online.

2.Paper is loaded correctly.

3.The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the computer.

Note: Non-IEEE-approved printer signal cables might cause unpredictable problems.

1.Any device drivers and other software that came with the printer are correctly installed.

2.You have assigned the printer port correctly in your operating system, application program, or BIOS settings. For more information about BIOS settings, see Chapter 7 “Using the Setup Utility program” on page 71.

If the problem persists, run the tests described in the documentation that comes with your printer. If you cannot correct the problem, have the computer serviced. See Chapter 12 “Getting information, help, and service” on page 103.

Serial port problems

Use this information to troubleshoot the serial port and devices attached to the serial port.

Symptom: Serial port cannot be accessed.

Actions:

Chapter 11. Troubleshooting and diagnostics 99

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Lenovo 2552, 2551 Printer problems, Serial port problems, Insufficient memory, Click Defragment Now, then click Continue

2552, 2555, 2553, 2554, 2551 specifications

Lenovo has a renowned history of delivering reliable and innovative technology solutions, with its 2550 series comprising the models 2551, 2552, 2553, 2554, and 2555 standing as significant entrants in the competitive PC landscape. These models cater to a diverse range of user needs, from everyday tasks to more specialized applications, reflecting Lenovo’s commitment to providing versatile computing options.

The Lenovo 2551 is designed with an emphasis on performance and efficiency. This model features an Intel processor that boasts robust processing power, making it ideal for multitasking and demanding applications. It is equipped with a high-resolution display, offering sharp and vivid visuals that enhance the user experience, whether for work or leisure.

Moving on to the Lenovo 2552, this version highlights a sleek and modern design, emphasizing portability without sacrificing performance. It includes advanced connectivity options, ensuring users stay connected with ease. The 2552 also integrates Lenovo’s latest thermal technology, which helps maintain optimal performance by keeping the system cool during intensive use.

The Lenovo 2553 emphasizes security and durability. This model incorporates Lenovo’s Advanced Security features, such as biometric verification and robust encryption, safeguarding user data against unauthorized access. Moreover, its rugged build quality ensures it can withstand the rigors of daily use, making it suitable for both office environments and on-the-go professionals.

The Lenovo 2554 further elevates the series with enhanced graphics capabilities, making it a choice model for creative professionals who require superior visual performance. This version supports a variety of high-end graphical tasks, aligning with the growing demand for graphic-intensive applications in design and multimedia fields.

Finally, the Lenovo 2555 rounds out the series with a strong focus on sustainability and energy efficiency. It incorporates eco-friendly materials and is designed to consume less power, contributing to reduced environmental impact. This model not only meets performance expectations but also aligns with Lenovo’s vision for sustainable innovation.

In summary, the Lenovo 2551, 2552, 2553, 2554, and 2555 each bring unique features and technologies that cater to various user needs. From robust performance and security to enhanced graphics and sustainability, this series embodies Lenovo’s commitment to providing cutting-edge solutions that enable users to thrive in a tech-driven world.