Hi I'm about to test this. I'm following this link
Step 1.
win+R→regedit→HKEY_CURRENT_USER/Control Panel/Input Method/Hot Keys
00000010 is for enable or disable the IME
00000011 is for toggle between full and half width characters
00000012 is for switch symbol mode
Step 2:
Go whichever hot key you want to modify, right click on the item and select modify, here are the rules:
Key Modifiers(ref):
00 C0 00 00, no Ctrl or Shift or Alt (Set this value if you don't need the hot key)
01 C0 00 00, leftAlt
02 C0 00 00, Shift
04 C0 00 00, Ctrl
06 C0 00 00, Ctrl+Shift
Or combination of the above to make your own.
Virtual Key code:
the actual key combination, ascii code
20 00 00 00, for Space
21 00 00 00, for PgUp
00 00 00 00, for no key
ff 00 00 00, for NONE (Set this value if you don't need the hot key)
Target IME:
leave it as it is, or change it to 00 00 00 00, for all languages( I suppose).
Reference Page