PC Maintenance Checklist: Keep Your Computer Healthy

Why maintenance pays off

Most computer problems build up slowly: updates pile up, storage fills, dust collects and unused programs accumulate. A few minutes of routine care prevents slowdowns, crashes and security problems, and helps your computer last longer.

Every week

• Restart your computer, rather than only putting it to sleep. Many updates finish only after a restart.
• Install pending updates for the operating system and browser.
• Make sure your backup ran.
• Empty the downloads folder of things you no longer need.

Every month

• Check free space: keep at least 10–20% of your drive free. Use Storage settings on Windows or Storage in System Settings on a Mac to find large files.
• Uninstall programs you don't use, especially toolbars and trial software.
• Review startup apps: on Windows, open Task Manager (Ctrl + Shift + Esc) → Startup apps; on a Mac, System Settings → General → Login Items.
• Update your other software: PDF readers, office apps, drivers.
• Run a full security scan.
• Review browser extensions and remove ones you don't recognise.

Every year

• Clean dust from vents and fans, gently, with the computer off and unplugged. Compressed air in short bursts works well for desktops.
• Check your drive's health. Many manufacturers provide a free tool, and unusual clicking noises are a warning sign.
• Test restoring files from your backup.
• Review accounts and passwords; remove old user accounts.
• Check that your operating system version is still supported with security updates.

Good everyday habits

• Keep laptops on hard, flat surfaces. Beds and cushions block air vents.
• Use a surge protector, especially for desktops.
• Shut down properly rather than holding the power button.
• Keep drinks away from keyboards.
• Don't ignore warning signs like new noises, heat, crashes or sudden slowness.

When to call for help

If your computer is still slow after these steps, makes clicking or grinding noises, shows frequent errors, or you suspect malware, it's time for a professional check. See performance optimization and PC & laptop repair.