11-12-2016 06:15 AM - edited 11-14-2016 06:13 AM
It may be worth trying the following to rule out a possible error with the keyboard input configuration.
At the log on screen, click the Ease Of Access icon in the bottom right corner, select On-Screen Keyboard and try entering your password using this.
Another thing to try, if you normally sign-on with an email and password, would be to see if you can reset the password via another PC from the Microsoft page on the following link.
Otherwise, a further option would be to reset the notebook to its 'Factory Condition' and then set it up again from the beginning – if you haven't created your Recovery Media yet, the notebook will have shipped with a Recovery Partition which can be accessed at boot - ie shutdown the notebook, then start tapping away at f11 as soon as you power on.
A full guide on this can be found on the following link.
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