Use the Service Tag to identify your computer when you usesupport.dell.com or contact support.l Enter the Express Service Code to direct your call whencontacting support.l Solutions — Troubleshooting hints and tips, articles from technicians, onlinecourses, and frequently asked questionsl Community — Online discussion with other Dell customersl Upgrades — Upgrade information for components, such as the memory, harddrive, and operating systeml Customer Care — Contact information, service call and order status, andwarranty and repair informationl Service and Support — Service call status, support history, service contract,and online discussions with supportl Reference — Computer documentation, details on my computer configuration,product specifications, and white papersl Downloads — Certified drivers, patches, and software updatesl Desktop System Software (DSS)— If you reinstall the operating system on yourcomputer, you should also reinstall the DSS utility. DSS automatically detectsyour computer and operating system and installs the updates appropriate foryour configuration, providing critical updates for your operating system andsupport for Dell™ 3.5-inch USB floppy drives, Intel® Pentium® M processors,optical drives, and USB devices. DSS is necessary for correct operation of yourDell computer.Dell Support Website — support.dell.comNOTE: Select your region or business segment to view theappropriate support site.To download Desktop System Software:1. Go to support.dell.com, select your business segment, andthen enter your Service Tag or product model.2. Select Drivers & Downloads, and then click Go.3. Select your operating system and language, and then searchfor the keyword Desktop System Software.NOTE: The support.dell.com user interface may vary depending onyour selections.l How to use Windows XPl How to work with programs and filesl How to personalize my desktopWindows Help and Support Center1. Click Start® Help and Support.2. Type a word or phrase that describes your problem, and thenclick the arrow icon.3. Click the topic that describes your problem.4. Follow the instructions on the screen.l How to reinstall my operating system Operating System CDThe operating system is already installed on your computer. Toreinstall your operating system, use the Operating System CD (seeReinstalling Microsoft® Windows® XP).After you reinstall the operating system, use the Drivers and UtilitiesCD to reinstall drivers for the devices that came with your computer.The operating system product key label is located on your computer.