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Which action best helps prevent malware infection on a computer?

medium Q15 of 15
Computer Aptitude - Internet Knowledge (Basics)
Which action best helps prevent malware infection on a computer?
AClicking all pop-up messages
BDisabling system updates
CUsing unknown USB drives
DInstalling software only from trusted sources
Step-by-Step Solution
  1. Step 1: Identify malware sources

    Malware often enters through untrusted software.
  2. Step 2: Select safest practice

    Trusted sources reduce the risk of malicious programs.
  3. Final Answer:

    Installing software only from trusted sources → Option D
  4. Quick Check:

    Trusted downloads = lower malware risk ✅
Quick Trick: Unknown source = unknown risk.
Common Mistakes:
  • Installing cracked or unverified software.
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