failing xp to accessing \\com_name\c$

Hello Friends;
I faced with a sharing problem between XP Pro (sp3) and Seven x32 (ultimate);
There is not any problem for accessing XP-OS to the folder, when it was shared on in Seven-OS.
But when I try to access some address like c$, d$ and etc (that was shared for administrative purpose), I'm not successful.

after enabling shared feature for these drive letters - or another patch - on seven-os, accessing them in xp-os would be possible but when it didn't be enable, always the windows show on for typing username and password who have the right privilege for accessing files. even i typed the credential of account who has administrator privileged of Seven-OS the windows don't be disappeared and is repeated.

In fact trying for accessing this example patch (\\Seven-OS_SAMPLE_NAME\C$\) is caused just showing the user and password windows in xp-os (instead open it).
I remember i could access these files (almost with the same state and without any special configuration) before, but now it seems that I can't.

I was really appreciated if help me about this problem.
File sharing, sharing (and other related features is ON in both seven and xp os)
and firewalls was off (both for private and public - in both of os)

Regards

does it prompt for username and password or just error out?

Hello brady, Thanks for reply;
not any error show. it just prompt for user and password again;
however typing again the credential of last account - with "admin" privilege, that it was used for logging before - isn't helpful.
I try to tick "save username and password" checkbox, but not any change occurred (prompt again for user and password).

The account SID (secure ID) lives on a parcticular machine. example username of "Joe" using computer1 = computer1\Joe or Joe@computer1.

So in that example, if your other machine is using the Administrator account, you'll have to access it by entering the computer name that is hosting said user account.

computer1\Administrator would be the username to use.

brady said:

The account SID (secure ID) lives on a parcticular machine. example username of "Joe" using computer1 = computer1\Joe or Joe@computer1.

So in that example, if your other machine is using the Administrator account, you'll have to access it by entering the computer name that is hosting said user account.

computer1\Administrator would be the username to use.

Dear Brady, you are right but it couldn't be done.
both accounts have admin privilege and the account prefix that you told, usually add automatically before the username by default of Xp-Os (however i add it manually too).
prompting again for username and password repeated without any change. the path (like c$), is also inaccessible (using account with sufficient privilege).

So through XP, type in: Control userpasswords2 into run line.
You must have the appropriate user accounts in the "Administrators" group. Generally you'll only be able to add local accounts into this group, but this is where you would add the account needed for accessing the admin share.

You must have a password associated to the account or it will not accept the connection.