disable AF/MF autofocus switch on 7d?

[focus]

Does anyone know how to disable the manual focus mode on a 7D?

[hsbn]

Manual focus switch is on the lens not the camera. Some lens have full manual focus; that mean even if you switch it to AF, you can still adjust manual focus. Did you turn the focus ring by mistake instead of zooming?

[focus]

What I want is to not epoxy the switch in AF mode. The 7D (and 5D III) have difficult non-replaceable focus screens so I want to guaranty AF mode.

[hsbn]

Sorry but I don't get what you mean. "I want to guaranty AF mode" I guess you want accurate AF? I can only guess it is releated to Micro Focus Adjustment, isn't it?