Unable to Access your computer from other computer through LAN (Local Area Network).

To resolve this issue, increase the value of the IRPStackSize registry entry. To do this, follow these steps:

    Click Start, click Run, type regedit, and then click OK.
    Locate and then click the following registry subkey:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
    If the IRPStackSize entry is not present in this subkey, follow these steps:

        Click Edit, point to New, and then click DWORD Value.
        Type IRPStackSize, and then press ENTER.

        Note: Type IRPStackSize exactly as it appears. The value name is case sensitive.
    Click IRPStackSize, click Edit, and then click Modify.
    In the Data Value box, type value 15, and then click OK.