Introduction
The disk drive lets you install drivers from disks and many other useful things. This is a simple replacement and should only be done if there is no way the disk drive could ever operate correctly.
Tools
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            Push the tab from the battery, downwards to unlock the battery. 
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            The tab should be in the position next to the unlocked indicator. 
 
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            Now, push the other tab (the one right under the battery) from right to left. 
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            Now the battery will be loose; lift the battery up and out of the computer. 
 
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            Remove the 8mm screw 
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            Use the plastic opening tool to push out the disk drive. 
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            Pull the disk drive out with the opposite hand. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.