Windows 7 1800+ Unknown computers in home network

[Huwiejohn]

Hi, I installed windows 7 rc a couple days ago, everything's great except now I tried to copy some files across my home network I have 1827 computers listed when I go to computer -> network from the start menu. The other home computers are listed along with a couple thousand other computers starting at ADMIN-ABUTIU

I havent enabled or disabled any network or security settings, any ideas?

 

[jeradw]

Is this a wireless network, or wired?