Introduction
This is a guide to replace the hard drive in a Lenovo Legion Y530-15ICH laptop.
Credit to Kaylie Klausing for the first three pictures, as well as the steps themselves.
IMPORTANT:
- Your OS will NOT be installed on the new hard drive. For guidance on reinstalling Windows, I recommend this guide from HP. This requires a flash drive (minimum 8Gb storage) or DL-DVD.
 - To transfer your files, I recommend the built-in Backup and Restore tool. This requires an external drive of at least the capacity of your current drive.
- I personally transferred my data to a lower-capacity (500Gb) drive because I had only 80Gb taking up space on a 1Tb drive. This causes no problems, but is not recommended because of the possibility of a user's replacement drive not having enough space for their data.
 
 
Tools
Parts
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Using a PH1 screwdriver or bit, remove eleven screws securing the back cover.
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Five 7mm screws
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Two 6mm screws
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Four 4mm screws
 
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Carefully pry the back cover off the computer using an opening pick.
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Start at one of the rear corners of the laptop and work your way around the chassis, gently pulling up on the cover until it detaches.
 
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Once the screws are gone and the ribbon cable is safely disconnected, remove the hard drive with the casing from the rest of the computer.
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Remove four screws from the casing, releasing the hard drive.
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Four 3.5mm screws
 
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This piece connects your hard drive to the computer. Remove it carefully, wiggling back and forth. Replace it on your new hard drive.
 
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Once the ribbon cable piece has been attached to the new hard drive, just follow these steps in the reverse order.