Hi, I've been running window vista home premium on two desk top PC's and vista business on my lap top.Everything was fine then my wife's desk top keep crashing and restarting. I then was unable to acces my desk top from my laptop. I can see it, but no access. When my wife's computer was on between crashes I could access the public folders, but not her documents. I was able to do this before in fact had her documents mapped.Rather the try to fixher computer that was almost two years (gateway sucks) I just purchased a new on with win 7 64 bit.(oh my other pc's are 32 bit). Now this Win 7 PC isn't seen by any other PC at least now. It was seen my my desk top. I think I don't have enough of a clue on networking, even though I was able to stay connected for a couple of years. Is there an overview document that could get me going in the right direction?I plan to "up grade" from vista premium 32 to win 7 home premium 64 on my desk top. Will this help any thing?Another issue, I just got eight gigs of memory, my mobo only recognizes 8 gig, I have 2 now. Will this work before I upgrade to win 7 64. I know vista 32 only sees about 3.5 gigs. Will it just egnore the extra or will it crash?I hope somone has a big enough brain to understand this.ThanksFrank

File sharing is probably easier if all machines are Win 7, but I am surprised that you are having problems sharing with Vista. They are very similar and just work for me. Have you enabled network discovery and file and printer sharing on all machines?The setup from Network and Sharing Center isvery similar in either Vista and Win 7. Even if your BIOS/motherboard can see 8G, your 32-bit OS cannot see more than 4G. It certainly can't use it, but it will just ignore it. It should not cause any problems.Bill

Hi Frank,Here is an article related to home network setting:http://windows.microsoft.com/en-US/windows-vista/Setting-up-a-home-networkMy suggestion is to check if all computers are in a same workgroup. Share a folder on target computerto Everyoneand try //IPaddress* to accessthe computer. If failed, write down the error.*note: here IPaddress is theIP of the target computer.