how do i turn on my radio controller on my ibm laptop in order to get wirless connection access

which model have you got?

try this

find the "Fn" button (usually bottom left and is blue)
find the wireless symbol on the keyboard, usually F5 key

hit both keys, Fn and keeping it pressed, hit F5

this should bring up the radio dialog. Switch it on from there.

If you have newer models like T60, there may be a switch towards the front, ensure that is switched on as well.

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Thanks the author, very useful advice.
my pc often freeze too, which always drive me crazy, I want a program to solve my slow computer, several days ago my friend recommend me a software tuneup360, now I'm waiting for the result.