The keyboard does not repond immediately when you press the keys

How do you reset a Toshiba laptop keyboard?
Shut down and restart your Toshiba laptop by pressing the power button. Immediately and repeatedly press the F12 key on your keyboard until the Boot Menu screen appears. Using your laptop's arrow keys, select "HDD Recovery" and press enter. From here, you will be asked if you want to proceed with the recovery.May 8, 2015
reference: https://crashcloud.com/how-to-reset-a-toshiba-laptop-back-to-factory-settings

It would be helpful to include more information such as the device and model number.
I will assume this is a laptop. Usually there is a key 'Fn' which stands for Function. Press this key and at the same time (immediately after) press the key that turns on the keyboard lights. Laptops often have keys with dual functions. The secondary function will be printed in a different color ink than normal. This us usually blue or red but can be any color. Holding the 'Fn' key while pressing one of these will access its secondary function such as volume control, sleep mode, keyboard lights, numbers, screen brightness, and so on.

Hello Pretty,

The keys you are mentioning is not working then they are internally damaged. You have to replace the keyboard with new keyboard. Meanwhile you can use the external usb key board or the onscreen keyboard from the Accessibility option or Ease of access.

there is a key combination that enables/disables the touch pad. it's the Fn key + the function key that shows a little mouse icon in blue at the top of your keyboard. on Fujitsu this would be Fn+F6 for instance. if this doesn't work, it is possible that the touch pad has been turned off in the BIOS setup. you will have to enter the BIOS and enable or automate the "internal pointing device"

Hi ,
Open a Notepad and type the key and check if @ or 2 is not working .Mostly happens if dust forms in the Keyboard. Upside down the key and clean the keyboard.

go control panel, hit mouse and find default settings. hit default, ok and do a reset on your computer.
If you have a special install disk for your mouse when the system starts back up ,test your keys then install the disk(or CD). if this does not correct your problem , check to see if someone changed the language on your pc. If english, buy a new keyboard.

try to reset BIOS by remove CMOS battery from motherboard and re insert again...

Reply to this issue from Logitech Tech Support:
Thank you for contacting Logitech Technical Support. My name is Susan and I will be assisting you with Incident # xxxxxx-xxxxxx .

I understand that the keys on your keyboard are not responding except the F lock key and the battery indicator key. Please correct me if I misunderstood you.

It appears that your keyboard might be encrypted during first installation.

To try and resolve this issue, I would like you to try and decrypt your keyboard. You can refer to the steps below on how to do this:

1. Press Ctrl + Alt +F12 key on the keyboard.
2. Press the Connect button on the receiver.
3. Press the Connect button underneath the keyboard.
4. Press the ESC key on the keyboard.

Once you have performed the steps above, test the keyboard in simple text applications such as Notepad or MS words to verify if the problem persists.

Additionally, you can try the following steps should the steps above was unable to resolve this incident:

a. Press the Connect button on the receiver for 10 seconds.
b. Wait for 20 seconds and then press the Connect button on the receiver again. Press the Connect button on the mouse.
c. Insert fresh new batteries back into the keyboard.
d. Press the Connect button on the receiver.
e. Press the Connect button on the keyboard.

This would help to isolate the cause of the incident that you are experiencing.

If this does not address your question, please update this incident, describing the results after following my suggestions. Or, if you prefer, you can contact us directly by the phone numbers listed below.

Thank you for choosing Logitech.


Sincerely,

Susan
Logitech Customer Support
www.Logitech.com/support

Your hard drive is failing.

If there is important data on the drive, stop using it and take it to someone immediately to attempt data recovery.

If a soft reset does not fix it,
Try a full hard reset:
Soft reset: Use the stylus to lightly press and hold the RESET button on the bottom of your device.
Hard reset: Press and hold the Left SOFT KEY and Right SOFT KEY, and at the same time, use the stylus to press the RESET button at the bottom of your device. You will be presented with a menu saying 'press R to reset, X to exit', if you press R Your device will be set back to factory default settings.
(The L/R soft keys are the "- -" keys just above the start and OK buttons)
Another Option if one of the SOFT KEY's is bad: START/SETTINGS/SYSTEM (tab)/CLEAR STORAGE.