My Senario 3 PC A, B and C connected trough a switch. to access each other, i use '\\A' '\\B' '\\C' in window explorer. my problem is as follow. from A, can access A, but B, C not accessible from B, can access A, B but C not accessible from C, can access A,C but B not accessible A B and C are under Mshome The msg i got for not accessible is ---------------- "\\B is not accessible, you might not have permission to use network resource. Contact the administrator of this server to find out if you have access permissions Logon failure: the user has not been granted the requested logon type at this computer" ---------------- actually before that all A,B and C have no sharing problem among each other. but suddently, after virus recovery on B and C(virus name is forgoten), this problem come out. any one can help me to make all A B C accessible?

if not mistaken, there were 2 indentical virus found on B and C, one of them named bootini.exe

You should have posted in the Networking forum. But try this: Run the Network wizard on each machine. Then create a user on each machine for each user on the other two machines. Do yourself a favor BACKUP!

thank you for suggestion, i try it now. if the problem remain, i will transfer this post to network form.