Windows 7: Need "permission" to change Port settings

I need to change the port settings, but get message that I don't have "write" permissions.

I tried this approach:

Run Regedt32.exe, find
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum
now right click Enum , and goto permissions..make sure either Everyone or your
account are set to Full

But got same error message when I tried to make the change.

Thanks in advance.



Regards, Paul.

It's okay. I figured it out.

Thanks anyway...