Windows 7 - Cannot set Win 7 as default boot, Dual Boot OSX Win 7 machine

The machine is functioning fine in OSX AND in Windows 7, BUT I cannot set the default boot system to Windows.

Neither Windows (loaded using "Option" F8 key) nor OSX will let me reset the default system to Windows.

When I try using System Preferences in OSX, I get the screen with two systems shown, "Mac OSX 10.7.2" and "Untitled Windows."
When I highlight the Windows, and click restart, I get a popup window that says "You can't change the startup disk... The Bless tool was unable to set the current boot disk."

I need the machine to boot into windows by default.

I am a novice, so details will be needed.

Help appreciated!

Type msconfig into start/search and hit Enter. Go to the Boot tab. There you can change it. If that does not work, let us know. There are other ways too.

Should have mentioned- Totally unfamiliar with Mac systems and operations.

Did as you suggested; Will not let me do it.

Boot Tab: "Set as default" is greyed out.

Next?

I wonder if EasyBCD would do it......Wolfgang?

The free version is at the very bottom of the page....

Yes, try EasyBCD as Golden suggests. The procedure is in Step 3 of this tutorial.

That reads like DELETING the OS, I don't want to delete either OS, just make Win 7 the default Boot System.

Will that BCD do that without deleting the OS?

Thanks

Sorry, my bad. I'll get back with the right link in a minute.

This is the right link: Changing the Default Entry - EasyBCD - NeoSmart Technologies Wiki

OK I downloaded the Easy BCD in the Windows mode, and it does not even show the Mac OSX! Only Win 7 is shown. Two systems are not on the screen.

What now?