KB and offer some time not working

Solution
I am assuming KB is for keyboard. So I am including some ways to check that below. However, since you didn't really include much in the way of details, I can't give further info. If the following doesn't help, please reply back with more details on what is going on and what you have done to try and fix it.

NOTE: If you need to type in a password to even get into Windows to do the following, make sure you attached an external keyboard first, to get past the password. Then disconnect the external keyboard and try the following...

1. Uninstall the keyboard driver.
2. Reboot the computer (without reinstalling the driver).
3. When it restarts, it should reinstall the driver on its own.

If this doesn't work, you may wish to try...
I am assuming KB is for keyboard. So I am including some ways to check that below. However, since you didn't really include much in the way of details, I can't give further info. If the following doesn't help, please reply back with more details on what is going on and what you have done to try and fix it.

NOTE: If you need to type in a password to even get into Windows to do the following, make sure you attached an external keyboard first, to get past the password. Then disconnect the external keyboard and try the following...

1. Uninstall the keyboard driver.
2. Reboot the computer (without reinstalling the driver).
3. When it restarts, it should reinstall the driver on its own.

If this doesn't work, you may wish to try connecting/reconnecting an external keyboard and see if it works fine. If it does, then it could be the keys themselves that are the issue.

You may also want to try updating the Synaptics Driver if the above doesn't help.
 
Solution