I have had all three versions of Windows 7 and I have only experienced this issue on my new Windows 7 x64 Ultimate RTM build 7600pc...I can not access any shared folders or files on the Windows 7 machine with any of my Windows XP machines, nor my Server 2003 or Server 2008 machine. First, yes they are all on the same network with the same network name. The Windows 7 machine is not using HomeGroup, but using the regular Network. I have already tried editing the gpedit.msc settings already posted in another post, and that did not work. And, yes, I added an Everyone group in both the Sharing tab and the Security tab of the folder Properties window (this is a common fix to share issues with XP folders). I have also played with the settings for the folder shares in the Advanced Sharing settings. No matter what I have done, I can not access any shared folders on the Windows 7 machine from a Windows XP machine. I have no issues accessing shares on any othercomputers on my network from the Windows 7 machine. What is really frustrating is that every machine on my network can see the Windows 7 machine in the network discovery (or network neighborhood), but I keep getting the same message saying I do not have permission to access this source. The Windows 7 Beta and RC versions did not have this problem on my network before, just with this new install of RTM, build 7600. The computer I am running this on is custom built machine...Asus M4A78T-E mobo (built in gigabit NIC, 7 ch audio, ATI HD 3300 video built in)AMD X2 550 BE cpu8 GB of 1333 DDR3 RAMATI Saphire HD4830 PCI-e graphics1 - WD 160 GB SATA HDD2 - Seagate 500 GB SATA HDD1 - Seagate 1 TB SATA HDDAny ideas would be appreciated :)

Works fine for me. In Netbios over TCP/IP enabled? Are all machines in the same workgroup/domain? Any third party firewall software? If you enable Public sharing, can you see the Public files?Bill

I found the problem, though it should have not been an issue. As many of you probably already know, Symantec does not have a version of their Endpoint Protection software that will work with Win 7. I figured out a while back with RC that you can force the install of SEP (version 11.0.4.0 - they latest one) by installing the Live Update software first, then SEP will install. I did the installation with all features turned off except for just the antivirus software so that it would not install thier version of a firewall. Even though I did this, Win 7 did not like the SEP and considered that there was a third party firewall installed and disabled all incoming requests except for RDP. Once I removed SEP, I could see my shares on my Win 7 machine from any XP or Server machine. Symantec is claiming they will not have a version of SEP that will play nice with Win 7 until after October 22nd. I should have tried this before I posted, but I did not have any issues with RC, so I thought it would be fine with RTM. Just goes to show that there are small differences with the different versions of 7. Thanks forthe suggestions anyway :)

I am using the same version of Win 7 on my laptop, and I am running XP on the stationary. Stationary is wired, laptop is wireless. I had (have) the very same problem. I cannot see XP from 7 (in network places), and vice verca. They are both part of the same workgroup. I cannot access XP from 7 by typing \\"computername" in explorer. Nor does this work the other way. Though, I found a rather simple workaround by simply typing in the local IP-adresses, instead of the computernames. I am hoping this works on other systems than my own, and I hope it helps you a little aswell. This, ofcourse, also functions as a hint towards on what level 7 and XP have trouble talking together. Though, this hint is better placed in more capable hands than mine. I am looking forward to people solving this, and creating a fix, or do whatever they have to do, in order to help people from having this problem in the future.