入力切替を[alt+~]から[右alt]に変える方法
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parametersで
[LayerDriverJPN] kbd101.dll > kbdax2.dll
[OverrideKeyboardIdentifier] PCAT_101KEY > AX_105KEY
[OverrideKeyboardSubtype] 0 > 1
と変更して再起動
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parametersで
[LayerDriverJPN] kbd101.dll > kbdax2.dll
[OverrideKeyboardIdentifier] PCAT_101KEY > AX_105KEY
[OverrideKeyboardSubtype] 0 > 1
と変更して再起動