Open Control Panel > Language. Select your default language. If you have multiple languages enabled, move another language to the top of the list, to make it the primary language – and then again move your existing preferred language back to the top of the list. This will reset the keyboard.
Sometimes issues with your cursor can appear due to new drivers. According to users, this issue can appear if you recently updated your mouse or touchpad driver. If your cursor freezes, jumps or disappears, you need to roll back to the older driver.
On the left hand side of the Display window, select Change Display Settings, then select Advanced Settings on the window that appears. Select the Monitor tab. Using the setting labeled Screen Refresh Rate, you will be able to access a drop down menu listing all the possible refresh rates available for your computer.
It is possible that a loose connection or bad port can cause problems with the mouse. Make sure that it's not either of these problems by disconnecting the mouse from the current USB port and connecting to another USB port. If your computer has USB ports, you may also want to consider upgrading to a USB mouse.
The best way to understand how the rates work is to mess with them:
- Open the Keyboard Properties dialog box.
- Click on the Speed tab.
- Use the sliders beneath Repeat Delay and Repeat Rate to speed things up or down.
- Click the Apply button.
- Click in the text box.
- Press and hold a key on the keyboard to check the rates.
You need to disable the touchpad when typing. Most modern laptops will provide an option or keyboard shortcut to accomplish this. The following Keyboard shortcuts have been known to disable the touchpad on various systems. Press and hold the Fn key and then press either F4, F6, F7, F9, or F12 to disable the Touchpad.
If your entire keyboard is locked, it's possible that you've turned on the Filter Keys feature accidentally. To unlock the keyboard, you have to hold down the right SHIFT key for 8 seconds again to turn off Filter Keys, or disable Filter Keys from the Control Panel.
Hardware. If keys stick or certain keys become unresponsive, dust and dirt are likely causes. Turn the keyboard upside down to try to release the dirt trapped inside. If that doesn't fix the problem, use compressed air to spray a jet of air between the keys, releasing any debris.
When the keys on a keyboard don't work, it's usually due to mechanical failure. If this is the case, the keyboard needs to be replaced. However, sometimes non-functioning keys can be fixed. The following sections contain common issues and their causes, with methods to try and repair those problems.
How to Fix a Keyboard That's Locked
- Restart your computer.
- Turn off Filter Keys.
- Try your keyboard with a different computer.
- If using a wireless keyboard, replace the batteries.
- Clean your keyboard.
- Check your keyboard for physical damage.
- Check your keyboard connection.
- Update or reinstall the device drivers.
