7 Tests to Run Before Buying a Used Windows PC or Laptop
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Loading... - Anubis Mormon
- 14 Mar 2025
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Purchasing a used computer can be a smart choice if you're on a budget, but it’s essential to proceed with caution. To avoid unexpected issues down the line, here are seven crucial tests to run before making your purchase.
1. Test Display, Keyboard, and Trackpad
Start by checking the display, keyboard, and trackpad, as these are vital for daily use. Use a website like Test My Screen to look for dead pixels or discoloration. Adjust the brightness to ensure it functions properly. For the keyboard, an online tool like Keyboard Tester can confirm that all keys are responsive. Test the trackpad by moving the cursor and trying multi-touch gestures. Make sure the physical click buttons respond well, too.
2. Test Webcam, Microphone, and Speakers
If you're buying a laptop, check the webcam by opening the built-in Camera app to ensure the image is clear. For the microphone, go to Settings > System > Sound, select the built-in microphone, and start a test to listen for clarity and volume. Finally, test the speakers in the same Sound menu to ensure the audio is clear without distortion.
3. Test the RAM
Faulty RAM can lead to crashes and sluggish performance, so it’s crucial to test it. Use the Windows Memory Diagnostic tool by pressing Win + R, typing mdsched, and selecting "Restart now and check for problems." After the test, check the results in the Event Viewer by searching for "MemoryDiagnostic" under Windows Logs.
4. Check the Health of Your Hard Drives
Ensure the hard drives (SSD or HDD) are in good condition. Use tools like CrystalDiskInfo to check for health status, temperature, and any bad sectors. A failing hard drive can lead to data loss and performance issues, so it’s essential to verify its health before purchasing.
5. Test Battery Health
Laptop batteries degrade over time, so it’s important to check their health. Open Command Prompt as an administrator and type powercfg/batteryreport to generate a battery report. Analyze the report to see the estimated battery life after a full charge. If the battery is significantly worn, factor in the cost of a replacement.
6. Stress Test the CPU and GPU
To ensure the CPU and GPU can handle your intended tasks, perform a stress test. This pushes the hardware to its limits and monitors stability under load. If the system remains stable, it indicates that it can handle demanding applications without crashing.
7. Monitor CPU and GPU Temperatures
During stress testing, keep an eye on the temperatures of the CPU and GPU. If the system shuts down due to overheating, it may require additional cooling solutions. Use software like HWMonitor or Core Temp to track temperatures and ensure they remain within safe limits.
Running these tests before purchasing a used Windows PC or laptop will help you assess the condition of the hardware and avoid potential pitfalls. Taking the time to perform these checks ensures you're investing in a reliable and fully functional device, making your purchase a smart and informed decision.
