These operations, however, only change the file allocation of the data; they do not delete the data itself. In other words, the data retrieval processing is disabled under an operating system such as Windows. The data is still there, even though it seems to be lost. Thus, it is sometimes possible to read the data by use of special software for data recovery. There is a risk that people of bad faith might read and misuse the critical data on hard disk drives or solid-state drives for unexpected purposes.

To prevent leakage of data, it becomes very important that you take responsibility for deleting all the data from the hard disk drive or solid-state drive when you dispose of, sell, or hand over your computer. You can destroy the data physically by smashing the hard disk drive or solid-state drive with a hammer, or magnetically by means of strong magnetic power, thus making the data unreadable. But we recommend that you make use of the software (payware) or service (pay service) specifically developed for the purpose.

For disposing of data on the hard disk drive or solid-state drive, Lenovo provides the Secure Data Disposal tool. To download the program, go to:

http://www.lenovo.com/support

Note: Running either program will take a couple of hours.

If you use software designed for use with the hard disk drive to delete data stored on the solid-state drive, it will erase only data that is accessible by normal operation. It may not erase the hidden area of the flash chip. Therefore, sometimes it may still be possible to read the data by use of special equipment or a special tool. To prevent leakage of data from the solid-state drive, it is recommended that you delete

all data on the flash chips by use of a program provided by Lenovo. This program called the ThinkPad Setup Menu Extension Utility makes it possible to erase all the data on the flash chips of the solid-state drive from the ThinkPad Setup within a minute. To download this program, go to the Lenovo Web site http://www.lenovo.com/support.

If Encryption solid-state drive or Disk Encryption hard disk drive is supported and installed in your computer, you can logically dispose of all the data on a device in a very short time by erasing the cryptographic key. The data encrypted with the old key is not physically erased but remains on the disk; however, it cannot be decrypted without the old key. This feature is enabled by the ThinkPad Setup Menu Extension Utility and is available as a menu item in the ThinkPad Setup.

Using firewalls

If your system is preinstalled with a firewall program, it protects against computer Internet security threats, unauthorized access, intrusions, and Internet attacks. It also protects your privacy.

For more information about how to use the firewall program, refer to the help information system that comes with the program.

Protecting data against viruses

Your computer is preinstalled with an antivirus program so you can detect and eliminate viruses. The antivirus program is designed to help you detect and eliminate viruses.

Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After 30 days, you must renew the license to continue receiving the antivirus software updates.

For more information about how to use your antivirus software, refer to the help information system of your antivirus software.

Chapter 4. Security 49

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Lenovo E135, E130 manual Using firewalls, Protecting data against viruses
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E130, E135 specifications

The Lenovo E135 and E130 are compact, lightweight laptops designed primarily for the education market and small business professionals. Engineered with portability and performance in mind, both models balance functionality with affordability, making them ideal for users seeking reliable daily computing without the bulk of traditional laptops.

One of the standout features of the Lenovo E135 and E130 is their impressive battery life. Both models are equipped with energy-efficient processors that enable extended use on a single charge, an essential factor for users who are often on the go. The laptops are designed to last all day, with battery performance catering to the needs of students and professionals who may not always have access to a power outlet.

The E135 features an AMD processor, allowing for efficient multitasking and smooth operation of applications while maintaining lower power consumption. The E130, on the other hand, is powered by an Intel processor, which is noted for its reliability and efficiency in handling everyday tasks. Both models ensure seamless performance for activities such as web browsing, document creation, and media consumption.

Display quality is another highlight of these models. The 11.6-inch display offers vibrant visuals and comfortable viewing angles, enhancing the user experience whether for work or leisure activities. The anti-glare technology helps reduce eye strain during prolonged use, ensuring that users can engage with their devices comfortably.

In terms of build quality, both the E135 and E130 boast a durable design that can withstand the rigors of daily use, an essential feature for students or field professionals. The keyboards are ergonomically designed for comfortable typing, while the touchpads provide responsive navigation, making daily tasks more efficient.

Connectivity options are plentiful; users can expect multiple USB ports, HDMI output, and integrated Wi-Fi, ensuring that the laptops can easily connect to various peripherals and networks. This versatility is crucial for those who work in diverse environments or need to connect their laptops to external displays.

In summary, the Lenovo E135 and E130 are excellent choices for individuals looking for compact, efficient, and budget-friendly laptops. With their solid performance, long battery life, and user-friendly features, these models meet the demands of students and professionals alike, making them reliable companions for everyday computing tasks.
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