Send key <Delete> doesn't work in windows 8.1

[erdemyy]

Greetings ,
I have very recently upgraded my system to windows 8.1 pro english 64bit
And installed/imported all of the old settings of QM.

My good old macro doesnt work in windows 8.1 in certain situations.

Code:

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key X           ;; Delete

Bound to alt+q

It deletes text etc in a text program but it doesnt delete the focused file in folder window as it used to , in windows 7.
I dont want anything special , i just want to bind alt+q to regular DELETE .

Thanks !