Omnicron
Home TechnologyDifficulty: EasyEstimated time: 20 minutesUpdated

How to Secure Your Computer

Keep your home computer safe with updates, built-in antivirus, a standard user account and safe browsing habits.

Why this matters

Your computer holds your photos, documents and saved logins. Modern Windows and macOS include strong security built in; you just need to make sure it is turned on and kept up to date.

What you'll need

  • Your Windows or Mac computer

Step-by-step instructions

  1. Step 1

    Turn on automatic updates

    Windows: Settings, Windows Update. Mac: System Settings, General, Software Update, Automatic updates.

  2. Step 2

    Check antivirus is active

    On Windows, open Windows Security and make sure Virus & threat protection shows green ticks. Microsoft Defender is free and effective for most home users.

  3. Step 3

    Use a standard account for everyday use

    Create a separate standard user account for daily use and keep the admin account for installing software. This limits what malware can do.

  4. Step 4

    Lock the screen

    Set a PIN or password and have the screen lock after a few minutes of inactivity.

  5. Step 5

    Only install trusted software

    Download apps from the Microsoft Store, Mac App Store or the official developer website. Avoid "free" versions of paid software.

  6. Step 6

    Turn on device encryption

    Windows: Settings, Privacy & security, Device encryption (or BitLocker). Mac: System Settings, Privacy & Security, FileVault.

Summary

Automatic updates, active antivirus, a screen lock and encryption give your home computer strong protection with little ongoing effort.

Still Need Help?

Some IT problems are easier to solve with a professional. If you've followed the guide and still need help, the Omnicron team can assist.

  • Computer & IT

    How to Update Windows

    Install Windows security and feature updates and configure automatic updates so you stay protected.

    Difficulty: EasyEstimated time: 10–30 minutes
    Read Guide
  • Home Technology

    How to Back Up Important Files

    Make sure family photos, documents and records are safe from a broken laptop, theft or a virus.

    Difficulty: EasyEstimated time: 15–20 minutes
    Read Guide
  • Home Technology

    How to Secure Your Home Wi-Fi

    Simple steps to keep neighbours, strangers and smart gadgets from becoming a risk on your home network.

    Difficulty: EasyEstimated time: 15 minutes
    Read Guide