Number row on laptop keyboard stops working once logged into windows account

mtm1974
mtm1974 used Ask the Experts™
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Number keys on Number Row not working once logged into Windows on Dell Vostro 5471 latpop (no built in number pad)

I can log in using the Number Row to enter my numeric PIN with no issues, but once logged in, I can not type using the Number Keys in the Number Row.

I have tried a reboot, uninstalling/reinstalling keyboard drivers, and adding a new keyboard type (canadian) and deleting and then adding the US Qwerty keyboard back.

Nothing has worked so far.  

I cannot for the life of me find anything about a key combo or setting change that would disable the number row only when logged in.
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Sorry, if i am stating a dumb issue, but have you checked caps lock settings ?

Author

Commented:
I wish!
Commented:
No rhyme and no reason the number pad began to work minutes ago after pressing SHIFT + 1 to print a "!".  After that it has been working as expected.
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Commented:
Does your security software include "keystroke protection", Constant Guard/GuardID/Trusteer Endpoint Protection etc.
This can be inadvertently activated and is, rather ironically, designed to prevent keylogging but in doing so causes exactly the effect you describe.  Disable using a keypress combination - could be Shift+1 I guess - but if you can identify a product the key combination to toggle on/off should be easy enough to look up.

Author

Commented:
Nope, no such software is installed for or to supress key logging. But thanks for taking the time to throw out an idea!
if the issue is with the numeric pad ( and even otherwise ), you may check the keyboard model rather than layout.

it is fairly possible you had a weird keyboard model such as one targeted for a laptop, dvorak, whatever model with 91 keys, ... and using one of the keys that are not supposed to exist triggered a mechanism that made it use the proper model.

that would be difficult to check since the correct model is probably remembered now if my hunch is correct.

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