Hello,,
This solution for people who after installing Avast antivirus get problem that keyboard and touch pad not working
[
before steps get backup file from registry by this steps:
1.open Run and type "regedit.exe"
2.open file then export
3. select the place where you will save the backup file of registry and named it registry_backup
]
Do this steps:
- Go to your Start menu and click “Run…”
- In the Run box that opens, type “regedit” and press Enter.
- In the new window that opens, click the “Edit” menu, then “Find.”
- In the find filed, type “kbdclass” and press enter.
- The registry editor will now search for any key that has “kbdclass” in it. What you are looking for is any that have a name of “UpperFilters” and a data of ” something_random_here kbdclass” You may need to go to “Edit,” “Find Next” if the search finds something else first.
- Once you find the key, double click on it, and edit the text so that it includes only “kbdclass”. Press OK.
- Continue searching (using the “Edit” and “Find Next” menu) until you have found and edited all of the “UpperFilters” keys. Again, all should have a data filed that includes only “kbdclass”.
- Close the registry editor.
- Go to the device manager, find your keyboard in the list (which should still be reporting a “Code 39″ error), and uninstall it.
- You should then restart your computer, and with any luck, your keyboard will work upon rebooting.
this solution from this website "manual steps" :
http://blog.ryantadams.com/2008/01/18/keyboard-not-working-due-to-missing-or-corrupt-drivers-code-39/
I 'll answer any questions as I know :)
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