Computer & Hardware

Troubleshoot a laptop that is plugged in but not charging by checking the charger, port, driver, power output, and battery health.

Confirm keyboard ghosting with a rollover test, then reduce dropped keypresses through wired connections, drivers, firmware, and NKRO settings.

Fix USB, wireless, Bluetooth, and laptop keyboards that do not type, type wrong characters, or have dead keys.

Understand how integrated and dedicated graphics differ for everyday use, gaming, creative work, cost, heat, and laptop battery life.

Laptop cooling pads can improve airflow and reduce temperatures slightly, but they do not fix dust, dried paste, or failed internal fans.

Fix F1-F12 keys that do media actions, nothing at all, or the wrong behavior by checking Fn Lock, keyboard software, BIOS, and hotkeys.

Use the paperclip test to check whether an ATX desktop PSU turns on, and understand when load testing or replacement is still needed.

Use and customize Windows Precision Touchpad gestures for scrolling, right-clicking, zooming, task view, app switching, and virtual desktops.

Use HP Battery Check, hard reset steps, BIOS updates, Battery Health Manager, and adapter checks when an HP laptop will not charge.

Remove a CPU cooler, clean old thermal compound, apply fresh paste, and reseat the cooler safely.