The keyboard does not respond or the response to keystrokes is delayed.

If the keyboard does not respond or the response to keystrokes is delayed, check to make sure that none of the accessibility options for the keyboard have been enabled , such as sticky keys, filter keys and toggle keys.

NOTES:

• All accessibility options should be unchecked.
• These options could have been enabled unintentionally by holding down the SHIFT key for 8 seconds or more.

If the issue continues, follow these steps to continue troubleshooting the issue.

NOTE: Because several of these steps represents a possible solution to this issue, if at any point the keyboard responds normally you will not need to continue troubleshooting.

1. On the keyboard, simultaneously press the Ctrl+Shift+Esc keys.
2. In the Windows Task Manager window, click the Performance tab.
3. On the Performance tab, in the CPU Usage section, if the usage indicator is above 50% then a program or process is running that is causing the delay in keystroke response.

   NOTE: If this is the case, close all of the programs you have running and test the keyboard response again.

4. If the keystroke response is still slow, restart the computer and test the keyboard response again.
5. If the keystroke response remains slow, restart the computer again and this time as it is restarting, at the black VAIO screen, tap the F8 key.
6. At the Advanced Boot Options screen, use the arrow keys to highlight the Safe Mode with Network option, and then press the Enter key.
7. Once the computer has completely started, click the Start button, click All Programs, click Accessories, and then click Notepad (or comparable text authoring software).
8. In the Notepad window, begin typing to test if the keyboard is responding slow.

   NOTES:

   • If the keyboard responds normally then some 3rd party software was causing the delay in keystroke response. Try uninstalling any recently installed software to see if that resolves the issue.
   • If the keyboard continues to respond slowly even in safe mode, then the issue is in the registry. Perform a System Restore to return the computer back to an earlier date when the issue was not present.
   • If still present after a System Restore, then a Full Format and Recovery will be necessary.