I added a computer to a working homegroup. One of the four other computers (#1) is refusing to cooperate with the new one (#2). #2 can read all the shares on #1, but #1 won't allow #2 to make any changes (e.g. move, rename, delete).
I get various "access denied" messages depending on which task I'm attempting to perform. The most specific one says I need to get permission from "Network Service". I've checked all the security and sharing settings I can think of without finding anything I could identify as relevant. Can somebody please give me a clue?
Hi echo, hi echo, echo, echo. ... Just my twisted sense of humor. 
Okay, Dave is the man for this one, I know very little about home networking. I'll give Dave a nudge and he should respond shortly.
In the meantime, I am assuming all five computers are running the same operation system (Windows 7), yes?
Yes, all 5 computers are running Windows 7. Three are running Professional and 2 are running Home Premium.
(Thanks for the response!)
Okay, no problem. Dave should be by soon.
Echo,
What are the operating systems of #1 and #2, respectively, and what (if any) security software are you running?
Both are running Windows 7 Professional. Windows Firewall and Microsoft Security Essentials on both.
OK, go to #2 and pic a folder that you are having problems with. Right click on the folder and choose Sharing>Homegroup and see if that fixes the problem (this is the easy fix).
I'm not sure I'm following. #2 is the new computer. The files I'm trying to modify are on #1, and in a Public folder, specifically \\OFFICE\C Office\Users\Public\Recorded TV. If I right click on this folder while I'm on #2, I don't get any sharing settings (nor would I expect to).
If I go to #1 and and right click on this folder, I get sent to "Advanced Sharing" which just lets me turn public folder sharing off and on (everything is on except for password protected sharing).
Thanks to your suggestion, however, I THINK I've eliminated the problem. I looked at Properties\Security for the Public folders on both machines. There were three groups granted full permission on #1 which weren't listed on #2. I removed those groups (Network Service, HomegroupUser$ and echo). I don't understand why or how or which of those was preventing the new machine from making changes on the old, but now it can. Another mystery: There was no problem editing the files in #1's Public folder from the OTHER three machines.
Can you recommend a web site or other source that explains what all those security groups are and how the settings affect permissions? I'm so clueless on this and common sense seems to work against me here!
Thank you so much for your help! and I enjoy your newsletter...
Pat Lange
Hello Pat,
Sorry about any confusion. I meant on the computer where the actual files/folder resides, so those options would not have been available on the other.
You solution would have been where I would have started if the first solution didn't fix the problem. As far as learning about permissions here is a good article from Microsoft - http://technet.microsoft.com/en-us/library/bb727008.aspx?lc=1033. It's from the Windows 2000 days, but is still relevant and explains what each permission allows and restricts.
Be very careful when you go editing permissions!
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