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  • Status: Solved
  • Priority: Medium
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Toshiba c8556-s5196 keyboard suddenly doesn't work

A Toshiba c8556-s5196 running Windows 7 was working well and suddenly the keyboard doesn't work on the built in keyboard or an attached USB keyboard. It works minimally in that the user can type in the password to get in. It also works when f8 is pressed to get the machine into safe mode.

I tried running it without the battery and the problem still was there so it doesn't seem to be the battery ACPI setting.

It doesn't seem to be a hardware problem because the keyboard works very minimally and the USB keyboard also doesn't work. The synaptics pad works.

What could be the problem?
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dovidf
Asked:
dovidf
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3 Solutions
 
tailoreddigitalCommented:
Check the Device Manager for any noted issues.    If there are, remove the device and reboot, see if Windows can resolve it.

It gets you into Safe Mode, does it work correctly while in Safe Mode?

Scan for malicious software (malwarebytes, and/or a decent anti-virus).


You can definitely try restoring it back a day or two or a week.  This could be a quick fix.

It does sound like a software based issue.
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nobusCommented:
does it work when booted in safe mode?  (F8 key?)
i would uninstall the latest updates -  they are often the cause of these problems
or do a system restore - as suggested
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dovidfAuthor Commented:
It doesn't work in safe mode.

I'll do a malware scan and see what comes up.
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nobusCommented:
last known good? try it
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dovidfAuthor Commented:
Removed the laptop keyboard and usb keyboard still didn't work.

Malwarebytes found one item in quick scan and removing it didn't help. Doing a malwarebytes full machine scan.

Will try last known good configuration next.

The machine's last updates were weeks ago and it was working well after those updates.
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dovidfAuthor Commented:
I tried an onscreen keyboard and it also didn't work.

I saw an article about set filter keys in ease of access. Somehow this got set and disabled all keyboard input. Unsetting it solved the problem.

Thanks to all.
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dovidfAuthor Commented:
The advice of the experts led me down the path to finding the problem. The solution that accounts for all 3 keyboards not working is the ease of access filter setting set when it shouldn't have been.
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