Disable your Default Shares
->Description of Default Share:
Every Windows NT based Microsoft Windows system (NT/2K/XP/2003) automatically creates a network share of every hard drive. These shares will allow anyone with the administrator password access to the root directory of every hard drive on a system.
These shares are the drive letter name with a "$" at the end.
-> For example:
\\NetworkComputerName\(Drive letter)$
In the real world it would look like this:
\\mycomp\c$
That would be the share of the C drive. Substitute the drive letter and it will work with any drive on the machine.
There is also a share of the Windows folder.
\\mycomp\ADMIN$
"So Its harmful that your default shares are enable
Disabling the Default Share:
1) Goto RUN --> Type "Regedit"
2) Click on HKEY_LOCAL_MACHINE --> SYSTEM --> CurrentControlSet --> Services --> LanManServer --> Parameters
3) On the right panel, create a new DWORD Value "AutoShareWks"
4) Set its value "0" without quotes (Zero).
5) Close the Registry Editor and restart your computer.

