Use these step-by-step guides to fix common hardware problems, then verify using OnlineHardwareTest tools.
Fix webcam not working, camera blocked, or black screen in the browser. Includes permission checks, app conflicts, and driver fixes.
Fix microphone not working in browser and apps. Solve missing input device, muted mic, low volume, and permission issues.
Fix one speaker not working (left or right). Check balance settings, mono audio, cable issues, and device selection.
Fix high ping and jitter for gaming, Zoom, and streaming. Improve Wi‑Fi stability, reduce interference, and troubleshoot ISP issues.
Learn the difference between dead and stuck pixels, how to detect them, and what fixes are possible. Includes when to use a pixel healer.
Fix keyboard keys not working, wrong layout, or input delay. Covers drivers, USB issues, and keyboard settings.
Fix mouse double click issues and unreliable clicks. Learn how to test switches and reduce accidental double-clicking.
Speed up a slow PC or Mac. Fix startup bloat, low disk space, background apps, and overheating. Includes quick checks and safe steps.
Fix Wi‑Fi dropping or disconnecting frequently. Reduce interference, improve signal, update drivers, and tune router settings.
Fix printer not printing, offline status, stuck print queue, or blank pages. Works for inkjet and laser printers.