Cleaning Solutions

The A+ Practical Application exam will likely ask you about when to use what cleaning product. The following is a list of cleaning best practices:

• Make sure the PC is off (remove any batteries from laptops).

• Remove any peripherals; they might have their own power supplies.

• Spray mild detergent onto the lint-free cloth, not onto the PC directly.

• Never use abrasive or lint-laden materials, such as paper towels on soft LCD screens, lenses, CDs, scanners, print or optical readers—anything that could get scratched or is sensitive to dust from the rag.

• Monitors and most PC components are best served with antistatic materials. Use them if it is an option.

• A solution of >70% isopropyl alcohol is used for cleaning electrical contacts.