Transfer game to other Steam acc?

[pullmyfoot]

Ok yesterday was my brother's birthday and one of his friends got him TF2 (in DVD format). Thing is, he somehow managed to accidentally install it on my account. Is there any way to unlink it from my account so he can install it on his Steam account instead?

Thanks

[tony_j15]

They may work with you. This is the closest Steam troubleshoot I could find dealing with the situation.

[pullmyfoot]

Thanks.