>The service runs under Administrative accounts.
If you want to tell me that the service is not running under the default account (Local System) but some assigned user account with admin permission, then try the following:
1.) Assign Local System as service account, restart service and test.
2.) Use the assigned account but disable UAC, restart system and test.
>-There are no NTFS permission on log directory
How is this possible? If there are no assigned permissions, then no one has access!?
If the account changes don't help, then I can only offer you to take a look at your system by using some kind of remote access.