I cannot Reset canon rebel T2i to original settings

[Kath]

I am having trouble w autofocus, when I tried to reset to default settings I get a busy reply.

[ebiggs1]

You might try removing the battery overnight.  The instructions for resetting the T2i is on page 144 of your manual.

Here's a link to your camera's manual from Canon, if you don't have it.

http://gdlp01.c-wss.com/gds/9/0300004289/02/eosrt2i-eos550d-im3-c-en.pdf