How can I toggle Full Screen mode in Remote Desktop without a Break key?

Solution 1:

This is a known issue with systems running Windows 7 / Server 2008 R2 whose resolution is set at 1366×768. Microsoft has created a hotfix which you can read about / request here: http://support.microsoft.com/kb/2582172

If you're lazy or don't want to give MS your email, you can just download it from here. Just know that by doing so Microsoft will have no way of notifying you if there is a recall on the fix.

Solution 2:

I have a Lenovo E430 and was struggling with this very issue. None of the answers here worked for me because Fn+Insert does not equal Break on this keyboard. Fn+B is the shortcut.

As such, pressing Ctrl + Alt + Fn + B maximizes the RDC window.

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