Before Working Inside Your Computer | 7
Before Working Inside Your ComputerBefore You Begin
CAUTION: To avoid data loss, save and close all open files and exit all open
programs before turning off your computer.
1Save and close all open files, exit all open programs, and turn off your computer.
2Follow the instructions to shut down your computer based on the operating system
installed on your computer.
Windows 8:
Point to the lower or upper-right corner of the screen to open the charms sidebar
and click Settings→ Power→ Shut down.
Windows 7:
Click Start and click Shut down.
NOTE: If you are using a different operating system, see the documentation of
your operating system for shut-down instructions.
3After the computer shuts down, disconnect it from the electrical outlet.
4Disconnect all cables — such as power and USB cables — from your computer.
5Disconnect all peripherals connected to your computer.
Recommended Tools
The procedures in this document require the following tools:
•Phillips screwdriver
•Torx #5 (T5) screwdriver
•Plastic scribe