CAUTION: To guard against electrical shock unplug your computer from the electrical outlet before performing Step # 8.CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching anunpainted metal surface at the same time as touching a connector on the back of the computer.8 Remove any installed ExpressCards or Smart Cards from the appropriate slots.GUID-44E70DF4-10EF-4B31-835C-0CB24976C844After working inside your computerAfter you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turning on yourcomputer.CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteriesdesigned for other Dell computers.1 Replace the battery.2 Replace the base cover.3 Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.4 Connect any telephone or network cables to your computer.CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into thecomputer.5 Connect your computer and all attached devices to their electrical outlets.6 Turn on your computer.GUID-52C8386F-7013-4A8E-912D-2DF589CA6CA4Turning off your computerGUID-B70C8BD7-328C-424F-8DF4-80728A0080ABTurning off your computer — Windows 10ข้อควรระวัง: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer .1 Click or tap .2 Click or tap and then click or tap Shut down.หมายเหตุ: Ensure that the computer and all attached devices are turned off. If your computer and attached devices did notautomatically turn off when you shut down your operating system, press and hold the power button for about 6 seconds toturn them off.GUID-8CC3ED6C-E9FF-44B2-B71A-231B2D871043Turning off your computer — Windows 7CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer.1 Click Start.2 Click Shut Down.Working on your computer 9