Laptop keyboard not working

Hello Tom,
We sincerely apologize for the inconvenience caused.
We will certainly look into this and help you to resolve it.
We've sent you an email that offered free additional support to investigate and resolve this issue.
Please check for the email and revert to us.
Thanks for your understanding in advance.

I ran the driver update on my Surface laptop and it told me at the end to reboot. After I rebooted my keyboard won't work and I can't use it at all.  How can I get into my Surface Pro 3 and undo what Driver booster did?

Hello Tom,
We sincerely apologize for the inconvenience caused.
We will certainly look into this and help you to resolve it.
We've sent you an email that offered free additional support to investigate and resolve this issue.
Please check for the email and revert to us.
Thanks for your understanding in advance.