Random keys not working after latest update

Because the external keyboard and On-Screen Keyboard still work, the issue is more likely isolated to the built-in keyboard path rather than Windows text input in general. An update can contribute by affecting driver state, but that does not by itself confirm physical hardware damage.

Recommended next steps:

1. Check for additional Windows updates again
   • Open Check for updates from the taskbar search.
   • In Windows Update, select Check for updates.
   • This is important because after a major update, Windows can miss or fail to migrate some device drivers, and running Windows Update again can reinstall missing drivers.
2. Do the basic hardware reconnection checks
   • If possible for the device, unplug and reconnect the keyboard connection path.
   • If using any USB-connected keyboard hardware, try a different USB port.
   • If a hub or dock is involved, remove it and connect directly.
   • Check for dirt or debris blocking the affected keys.
   • If the keyboard is battery-powered, make sure it is charged.
3. Update the keyboard driver manually in Device Manager
   • Search for device manager and open Device Manager.
   • Expand the keyboard device category.
   • Open the affected keyboard device.
   • Select the Driver tab.
   • Choose Update Driver and follow the prompts.
4. Test whether the built-in keyboard works outside the current hardware path
   • If the keyboard appears not to work correctly at all for those keys, test the device behavior as much as possible in another scenario or with alternate input already available.
   • Since the external keyboard works, that helps narrow the problem to the laptop keyboard hardware or its driver path.
5. If the problem started immediately after the update, treat the update as a possible trigger, not proof of hardware failure
   • Microsoft documents cases where device drivers updated shortly before or during a major Windows update do not migrate correctly.
   • In that case, rerunning Windows Update is the documented workaround.

What this likely means:

• Not likely a general Windows input problem: the On-Screen Keyboard and external keyboard working correctly points away from a system-wide typing issue.
• Could be driver-related: especially since the problem began right after restart from an update.
• Could still be hardware-related: random built-in keys failing while other input methods work can also indicate a keyboard hardware fault or connection issue. The update may have coincided with the failure rather than physically causing damage.

If Windows Update finds and installs additional driver updates and the built-in keys still fail afterward, the remaining evidence points more strongly to the laptop keyboard hardware or its internal connection rather than the update having directly caused physical damage.

References:

• Mouse and keyboard problems in Windows
• Devices not working after a major Windows update