When remote desktoping to a windows 7 (only tested for windows 7 but could plausibly affect Windows 8) Ultimate machine and then minimizing, upon opening the remote desktop connection window, it will be black and unrepsonsive or, will freeze.
I found several solutions across the web saying to do a registry edit or etc but non of them worked for me. Here is what did.
What made my remote desktop no longer work, was the fact that Aero was enabled. When i clicked out of the window and went back, the connection would not work because it could not renable Aero. I disabled aero from working through Remote Desktop Connection by installing and enabling Remote Desktop Protocol 8.0 on the remote host machine (the machine you connect too).
Make sure you have Remote Desktop Protocol 8.0 installed. You can get it Here. Once its installed (which for me it already was) you have to manually enable it.
From the support/download page for the windows KB2592687:
“To enable RDP 8.0 on a remote computer that’s running Windows 7 SP1, follow these steps:
Note The following instructions are applicable only to remote computers that are running Windows 7 SP1.
- Install the appropriate version of the update package by running the Windows6.1-KB2592687 update file.
- Restart the computer.
- Open the Local Group Policy Editor.
- Enable the Remote Desktop Protocol policy. The setting for this policy is under the following node:
Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Remote Session Environment
- If the UDP functionality is required, enable the RDP Transport policy, and then set the value to Use both TCP and UDP. The setting for
the RDP Transport policy is under the following node:Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Connections
Note Configuring the RDP Transport policy also lets the firewall allow UDP port 3389.
- Restart the computer.”
After that (I skipped steps 5 and 6) I restarted the machine and RD no longer loads aero (also, enabling RDP8.0 adds some features.