Keyboard guide
Use an external keyboard as a diagnostic boundary
Last updated September 30, 2026
A second keyboard is both a workaround and a controlled comparison.
Choose a simple test device
A basic Windows-compatible USB keyboard is ideal because it avoids Bluetooth pairing and battery variables.
Repeat the exact same test
Use the same Windows session, application and suspect keys. A clean external result while the internal keyboard still fails is meaningful evidence.
If both keyboards fail
Do not buy a replacement yet. Check layout, accessibility settings, remapping utilities, remote-control software and device errors.
If the external keyboard works
Use it temporarily while deciding whether internal keyboard service is worth the cost and installation complexity.