Windows 7: Annoying LAN problem Windows 7

Hi

Im from Poland and i couldn't find any answers in my language on our forums, thats because i'm writing here and trying to describe my problem.

I use 2 PC's in a home network over a router. One of them (call him XP) has Windows XP PRO SP3 on it, and the other one (call him Windows 7) has Windows 7 RC 7201. The XP can see my computer on the network, and access him, and all shared folders and files. The Windows 7 can do nothing, it can only ping the other one. Windows 7 can not acces himself when i get into My Komputer and then network. He can see himsel, but when i click on him i get an error message (i try to translate):
"\\Windows 7 is not accessible,you will may have no premissions to use it.Contact your network administrator to get the premissions.

Given network provider is incorrect"

If i try to acces Windows 7 from Windows 7 over my IP trough start>run>\\ip i get the same message. I can also access XP from Windows 7 with the same method.
The only way to access XP from my Windows 7 is to run XP mode on it(virtual Machine), and then sudeenly from XP MODE i can access both of the computers XP and Windows 7. I've tried many things,and spend several hurs to get it running but i have no ideas more...



Has anyone ideas how to get it work?
and sorry for my English, i hope you understand what i wanted to write
thanks for any help

on the Windows 7 computer with file shares, go to network sharing center. look at your network adapter properties and make sure "file and printer sharing" is enabled

back in network sharing center disable "password protected sharing" and make sure public folder is shared to everybody

then go to local security policy -> local policies -> security options and enable the Accounts: Guest account status (near the top) and set Network access: Sharing and security model for local accounts to "Guest Only"

reboot the Windows 7 computer and then try to access \\win7computer from my computer or in network

let me know what happens

Hi

Thanks for the quick reply. I have set everything what you told me to do, but it didn't worked. I have here some screenshots in my attachments to shaw you what happens, and i changen my language to English, because it was easier to set this settings what you told me.
But still nothing works. If i try to share a folder i become a message that i can't share this folder, and i don't know why, but when I'm in Total Commander there is an icon that the folder is shared.

Greetings from Poland

open "Computer" on the Windows 7 pc and in the address bar type \\<name of XP pc>

@tw33k

If i try to do this, i get an message:

can you show us a screenshot of your network adapter properties?

are you running any third-party security software of any kind?

I'm using ESET NOD ANITVIRUS

You do realize that both of those programs have been causing problems for people? NOD32 has been causing memory leaks and other problems and ESET has it's share of problems with Windows 7 also.

Do You thng that i should uninstall ESET NOD32 antivirus?

I give UP, can I just reinstall Windows 7 RC (maybe it will solve the problem)? will it work with the key what I entered first time?