Hi, when i share a folder in properties/security/group or user names: automatically adds a new permission: home usere (computer name\Homeusers). but the folder will not accessable unless i add Everyone permission to list manually. please help me...

What permission do you mean, security or share? For homegroup troubleshooting look here: http://helpdeskgeek.com/windows-7/windows-7-cannot-connect-to-homegroup/ Regards Milos

Hi Milos and thanx for your answer, I'm a beginner and cannot understand what you mean. The permisions I said are in: Right click on shared folder/properties/security/group or user names.   

Hi, Could you please capture a screenshot to help make the issue clear? 1. Create a new folder to test. 2. Right click it and choose properties. 3. Switch to Sharing tab. 4. Click Share. 5. Add the account to share and capture the screenshot as below. Please provide the error message also if your shared folder cannot be accessed via the added account.Kim Zhou TechNet Community Support

Hi dear kim zhou, I did what you said. There is no error and screenshot is just like yours. But my problem is: I set homegroup on both computer and every things is apparently ok. But when sharing a file or folder I force to share whit everyone and cannot share whit homegroup. when share in homegroup the folder is visible but not accessible. regards Farzin.

Hi, When you try to access the shared folder, whether you encountered Access Denied or the other error message? If you shared with the special account without everyone, shall we access it successfully? If so, we may try to re-create the home group.Kim Zhou TechNet Community Support

hI, I encountered Access Denied. What you mean share whit special account? In the list beside of add button only are user account names of this computer and homegroup and everyone. If you mean sharing whit users of this computer the answer is yes and they will access that. THANK YOU. 

Hi, Sorry for later reply. Based the current situation, I suggest re-creating the home group by referencing the following link: http://windows.microsoft.com/en-us/windows7/help/home-sweet-homegroup-networking-the-easy-way?SignedIn=1Kim Zhou TechNet Community Support

Hi dear Kim Zhou, As the last question: how can i unshare all of my shared files and folders? THANKS FOR YOUR HELP.

Hi, You may need to unshared each shared folder manually or try to find the script instead.Kim Zhou TechNet Community Support