NoteHKLM\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0x1 - 0xFFFFFFFF | 0x3 |
Specifies the maximum number of times a hardware operation is attempted. If the number of trials exceeds the value of this entry, Windows 2000 considers the operation to have failed.
You might consider increasing this value if the driver does not initialize or operate correctly and the System Log in Event Viewer contains the following message from the source, i8042prt :
Exceeded the allowable number of retries (configurable via
the Registry) on device <device-name>.
Note
Unlike some entries in this subkey, this entry remains in the Parameters subkey and is read from this location even after a keyboard is installed.