Hello wanderson75!
Without disabling UAC with a GPO or using RDP to access the device, I'm afraid I know of no way to get around this problem with using SMS/ConfigMgr Remote Tools. I have been unable to find any word that MS has a way to resolve this issue yet.
Example of a situation similar to yours:
http://www.windows-noob.com/forums/index.php?/topic/1159-remote-tools-windows-7-uac/page__p__3269&#entry3269/cheers