I can't type double leters on my surface or pres backspace multiple times in a row. Anyone know how to fix this?

Turn off Filter Keys, especially its repeated-keystroke options, because that Windows accessibility feature can ignore consecutive presses of the same letter, Backspace, or arrow key.

Turn off Filter Keys

Windows 11

1. Open Start → Settings → Accessibility → Keyboard.
2. Turn Filter Keys Off.
3. If it is already on and you want to keep some Filter Keys functions, open its settings and disable:
   • Ignore unintended keystrokes (bounce keys)
   • Ignore repeated keystrokes (repeat keys)
   • Wait before accepting repeated keystrokes
4. Test by typing letter, holding Backspace, and holding an arrow key.

Windows 10

1. Open Start → Settings → Ease of Access → Keyboard.
2. Turn Filter Keys Off.
3. Test the repeated keys again.

Microsoft documents that Filter Keys can ignore brief or repeated keystrokes, and specifically recommends checking this setting when a Surface keyboard ignores repeated input.^1^ The individual Windows settings include options to ignore repeated presses and delay acceptance of subsequent presses.^2^

If Filter Keys is already off

1. Open the Surface app.
2. Expand Help & support and check the update status.
3. Install any offered updates, then restart the Surface.
4. If this is a detachable Type Cover, shut down the Surface, detach the cover, check the connector for debris or damage, and reconnect it securely.
5. Test outside Windows in Surface UEFI:
   • Shut down and wait 10 seconds.
   • Hold Volume Up, press and release Power, and continue holding Volume Up until UEFI appears.
   • Test repeated presses of the up and down arrow keys.

If repeated presses work in UEFI but not in Windows, the issue is software-related. Microsoft’s documented final recovery option is Settings → System → Recovery → Reset this PC → Keep my files → Cloud download. Back up important data first; this keeps personal files but removes installed applications, drivers, and settings changes.^1^

If the keys also fail in UEFI, or continue dropping repeated input after these checks, Microsoft treats that as a likely keyboard hardware failure. Submit a service order for the Type Cover or Surface through the device-service page referenced in the Surface support procedure.^1^

References

1. Troubleshoot Surface Pro Keyboard or Type Cover | Microsoft Support
2. Windows settings backup and restore settings catalog (windows-10)