As a test, from the domain manager, try accessing \\NOMAN-PC\admin$, in order to simulate what the deployment wizard is doing. If/when prompted for credentials, provide the same user account that you are specifying in the deployment wizard, and see if you get an access denied error.
If Windows doesn't prompt you for credentials when you browse Start-->Run-->\\NOMAN-PC\admin$, it's because Windows is using implied credentials (the account you are logged in with) and they are working successfully. If you want to test another account, you can use Windows Explorer --> Map Network Drive and there will be an area where you can explicitly specify the account you would like to use.