What To Check When Buying A Used Computer Apr 2026

Run the computer for 15–20 minutes. Listen for "jet engine" fan noise, which could indicate a dust-clogged interior or failing thermal paste. 3. Battery & Power (Laptops Only)

Open a text editor and test every single key. For trackpads, ensure clicks are responsive and gestures work smoothly.

Use tools like CrystalDiskInfo to check the health of the SSD or HDD. Look for a "Good" status and check the total data written to see how much life is left. what to check when buying a used computer

Check Laptop Battery Health: Test Battery Condition on Windows - Dell

Check for cracks, deep dents, or missing screws. Pay close attention to the corners; dents here often indicate it has been dropped. Run the computer for 15–20 minutes

Look for scratches, dead pixels (tiny black dots), or "bruising" (discolored patches). Test this by viewing a solid white and then a solid black background.

Buying a used computer is a smart way to get high-end tech for a fraction of the cost, but it requires a careful eye to avoid "buying someone else's headache." Whether you are looking at a sleek laptop or a powerful desktop, use this comprehensive checklist to ensure your new-to-you machine is a bargain, not a burden. 1. The Physical Walkaround Battery & Power (Laptops Only) Open a text

The battery is often the first thing to fail in a used laptop.