Cannot open default admin shares on Windows 2008R2

CURRENT CONFIGURATION: Windows 2008 R2 SP1 (In workgroup), Windows 7

ISSUE: Cannot open default admin shares on Windows 2008R2 (C$, etc.) with account credentials in local Administrators group but the account is not Administrator. I could connect to non standard shares with the same credentials

C:\>net use \\MyServerName\c$ /user:MyServerName\MyAdminUser MyPassword

System error 5 has occurred.

Access is denied.

SOLUTION:

Please open regedit, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

Create new DWORD (32-bit) Value "LocalAccountTokenFilterPolicy"

Change in data 0 to 1

Please open Start –> Administrative Tools –> Server Manager –> Roles –> File Services –> Share and Storage Management

Right click on C$ –> Stop sharing

Open Command Promt as administrator

C:\>sc stop LanmanServer

C:\>sc start LanmanServer

DOWNLOAD: Download md5: 8062a4edaf664c0f742500c61293153c HKLM_W2008R2_Access_to_admin_shares_fix.zip

LINKS: kb947232