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keyboard failure on Windows laptops. Turn the laptop off, power it back
on again, and then quickly press the key on your laptop that enters the
computer’s BIOS (or setup) menu – the key differs from manufacturer
to manufacturer, but
F2,
F10, and
DEL are commonly used.
If the laptop will enter the BIOS menu, then the fault is likely with
the keyboard’s software driver, not the keyboard itself. Leave the
BIOS setup menu and boot back into Windows as normal. Plug in
an external USB keyboard (borrow one if you don’t have one lying
around) and open the Device Manager by typing that phrase into the
Windows search menu and selecting the relevant option.
In the Device manager, look for keyboards, find your laptop’s main
keyboard (normally called Standard PS/2 keyboard), and right-click
on it. Select ‘Uninstall device’. Restart the computer and Windows
should – fingers crossed – automatically reinstall the keyboard. If
not, right-click on keyboards in the Device Manager again and select
Scan For Hardware Changes. That should reinstall the keyboard
driver and hopefully resolve your problem.