Change the Keyboard Buffer Size (Windows NT/2000/XP)
Category: Home > Hardware > Mice and Keyboards
Occasionally Windows may report an error relating to an overflow in the keyboard buffer. This tweak can be used to increase the size of the buffer, and avoid this problem.
Open your registry and find the key below.
Modify the value of 'KeyboardDataQueueSize' to equal the size of the queue buffer to use, .
Exit your registry and restart Windows for the change to take effect.
 |  |  |  |  |
|  | (Default) | REG_SZ | (value not set) | |
|  | KeyboardDataQueueSize | REG_DWORD | 0x00000064 (100) | |
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| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdclass\Parameters |  |
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| Settings: |
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdclass\Parameters]
Name: KeyboardDataQueueSize
Type: REG_DWORD (DWORD Value)
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Related Tweaks
Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.
Last Modified: May 13, 2002
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