
For the meantime, I'm happy enough that it's got Task Manager opening maximised after several other methods (I didn't try any of the scripts) didn't do the trick. Finish off by closing the Windows Task Manager by clicking the X in the top right-hand corner (or you can do Alt + F /down arrow and select the Exit Task Manager option). Some users report that this is a temporary fix that works a few times, and then mysteriously stops working. This will select all the programs in the list. While the holding-Alt-trick attracted me, closing the window in the normal way also saves its size and position after these have been changed. When the program is re-opened, though not technically 'Maximized', it should be nice and big and fill your screen in an identical manner, depending on how carefully you dragged those corners. Then hold Alt while clicking the red cross in the top-right-hand corner.


DON'T maximise it, but use your pointer to drag the corners of the window to the corners of your screen. Open a program with its window non-maximised (if it's already maximised, use the keyboard shortcut Alt+Space, R to 'restore' it to its smaller size). This works to EMULATE a maximised window (make it really big and fill the screen):
