Dell PP26L owner manual Turning Off Your Computer, Before Working Inside Your Computer, 164

Turning Off Your Computer

NOTICE: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer.

1Shut down the operating system:

a Save and close all open files and exit all open programs.

bIn the Microsoft Windows XP operating system, click Start→ Shut Down→ Shut down.

In the Microsoft Windows Vista operating system, click the Windows Vista Start button , click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down.

The computer turns off after the operating system shutdown process is complete.

2EnsurethatthecomputerandttachedlldevicesareturnedoffyourIf. computerandattacheddevicesdidnotautomaticallyturnwhenoffyou shutdownyouroperatingsystem,pressandholdthepowerbuttonfor about 4 seconds to turn them off.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

164

Adding and Replacing Parts