Lenovo 30CY, Hardware Maintenance Manual, Page: 65 / 224

Cleaning your computer
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 “Read this first: Important safety information” on page 1. Properly remove or install your computer cover.
See Chapter 9 “Hardware removal and installation” on page 97.
CAUTION:
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free
operation. Use only mild cleaning solutions and a damp cloth to clean the painted surfaces of the computer.
Dust buildup compounds problems associated with glare, so remember to clean the screen periodically.
Wipe the screen surface gently with a soft, dry cloth, or blow on the screen to remove grit and other loose
particles. Depending on the type of the screen, moisten a soft, lint-free cloth with an LCD cleaner or liquid
glass cleaner and then wipe the screen surface.
Maintenance
With appropriate care and maintenance, your computer will serve you reliably. This section provides
instructions on how to maintain your computer so that it can keep working in better condition.
Basic maintenance tips
Here are some basic points about keeping your computer functioning properly:
• Keep your computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface.
• Do not cover any of air vents. These air vents provide airflow to keep your computer from overheating.
• Keep food and drinks away from all parts of your computer. Food particles and spills might make the
keyboard and mouse stick and unusable.
• Do not get the power switches or other controls wet. Moisture can damage these parts and cause an
electrical hazard.
• Always disconnect a power cord by grasping the plug instead of the cord.
Good maintenance practices
By performing a few good maintenance practices, you can maintain good computer performance, protect
your data, and be prepared in case of a computer failure.
• Empty your recycle bin on a regular basis.
• Use the disk defragmentation or disk optimization feature of your operating system occasionally to
prevent performance problems caused by an excessive number of fragmented files.
• Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis.
• Back up critical data regularly on removable media memory, such as discs and USB storage devices, and
store the removable media in a safe location. The frequency of making backup copies depends on how
critical the data is to you or your business.
• Back up your data on the storage drive regularly. See “Recovery information” on page 86.
• Keep your computer software, device drivers, and operating system up-to-date. See “Keeping your
computer current” on page 58.
Chapter 4
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You and your computer
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