Store your external and removable hard disk drive or optical drives in the appropriate containers or packaging when they are not being used.

Before you install any of the following devices, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the device.

Memory module

Mini PCI card

Memory card, such as SD card, SDHC card, SDXC card, and MultiMediaCard

Note: Not all listed devices are included in your computer.

This action reduces any static electricity from your body. The static electricity could damage the device.

While transferring data to or from a media card, such as an SD card, do not put your computer into sleep mode before the data transfer is completed; otherwise, your data could become damaged.

Take care in setting passwords

Remember your passwords. If you forget a supervisor or hard disk password, Lenovo will not reset it, and you might have to replace your system board or hard disk drive.

Register your computer

Register your ThinkPad computer with Lenovo at http://www.lenovo.com/register. This can help authorities return your computer to you if it is lost or stolen. Registering your computer also enables Lenovo to notify you about possible technical information and upgrades.

Be sure not to modify your computer

Only an authorized ThinkPad repair technician should disassemble and repair your computer.

Do not modify or tape the latches to keep the display open or closed.

Cleaning the cover of your computer

Occasionally clean your computer by doing the following:

1.Prepare a mixture of a gentle kitchen-use detergent (one that does not contain abrasive powder or strong chemicals such as acid or alkaline). Use 5 parts water to 1 part detergent.

2.Absorb the diluted detergent into a sponge.

3.Squeeze excess liquid from the sponge.

4.Wipe the cover with the sponge, using a circular motion and taking care not to let any excess liquid drip.

5.Wipe the surface to remove the detergent.

6.Rinse the sponge with clean running water.

7.Wipe the cover with the clean sponge.

8.Wipe the surface again with a dry, soft, lint-free cloth.

9.Wait for the surface to dry completely and remove any fibers from the cloth.

Cleaning your computer keyboard

To clean the computer keyboard, do the following:

1.Apply some isopropyl rubbing alcohol to a soft, dust-free cloth.

2.Wipe each keytop surface with the cloth. Wipe the keys one by one; if you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Ensure that no liquid drips onto or between the keys.

3.Allow to dry.

84User Guide

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Lenovo 33472GU, S230U Cleaning the cover of your computer, Take care in setting passwords, Cleaning your computer keyboard