How do I open the Windows Task Manager during a Remote Desktop session?

"Right-click the taskbar and click Task Manager.
CTRL+Shift+Esc will serve the purpose if its not allowing to click anywhere."

Or click Start → Run, then type taskmgr.

"If you just needed to enumerate processes on remote PC, you do not need to establish RDP session.

Take a look at Remote Process Manager http://admintoyssuite.com/l/remote-task-manager--view-and-kill-processes-and-applications-on-network-desktop-computers/

I found this way more flexible than to disturb currently logged on user with RDP connection prompt. Remote Process Manager connects on-the-fly and do not show any question boxes to remote users.."
"If you just needed to enumerate processes on remote PC, you do not need to establish RDP session.

Take a look at Remote Process Manager http://admintoyssuite.com/l/remote-task-manager--view-and-kill-processes-and-applications-on-network-desktop-computers/

I found this way more flexible than to disturb currently logged on user with RDP connection prompt. Remote Process Manager connects on-the-fly and do not show any question boxes to remote users.."

AltCtrlEsc will work on Remote Desktop.

"Ctrl+Shift+Esc doesn't work in windowed (non-full screen) mode. Host Task Manager will be invoked.

Ctrl+Alt+End doesn't work in nested RDP session. Menu for outer RDP session will be displayed.

If you need to start Task Manager to rescue your server in nested session / windowed mode - just switch to full screen mode temporary with Ctrl+Alt+Break where you can use Ctrl+Shift+Esc. This key combination will be send to the most nested RDP session in full screen mode.

Other cool tips: blog.codinghorror.com/remote-desktop-tips-and-tricks/"