What should you do before opening a PC to repair it?

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  1. Leave it plugged in with the switch on
  2. Wear a metal bracelet and stay plugged in
  3. Disconnect power

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References

  1. CompTIA A+ Core 2 (220-1202) Exam Objectives v1.1 lecbyo.files.cmp.optimizely.com/download/84764f7a85ba11ef87e9da1cab964337 Checked 2026-10-10.

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