I've wiped my hard drive a few times I have a couple things called "Computer-Name, Computer-Name-1" and it's extremely annoying. I could just uninstall SkyDrive, but I have 19GB of files I don't want to have to download on to three separate machines again.
I've hunted around, and I can't find it. Going to devices.live.com doesn't solve the problem. (That's only for Live Mesh, not SkyDrive). I haven't been able to find anything in Windows Live's settings.