Window focus is stolen but doesn't go anywhere

uninstalled Quickset & Stage software.
I still see the window flickering, but the focus remains on the active one.

Yannick said:

uninstalled Quickset & Stage software.
I still see the window flickering, but the focus remains on the active one.

Cross referencing the Dell forum
XPS 15Z trackpad never really shut down when using usb mouse - Laptop General Hardware Forum - Laptop - Dell Community

There is another bug users are seeing that seems to be tied to the Cypress touchpad.

Thank you Jac73 for erasing many weeks of frustration with this focus stolen problem and thank the person who articulated the problem in such a way that I could find it. I was really struggling with how to explain it. Removing the Dell Quickset worked!! You're the best!

windows 7 have updated yesterday night and firefox. Since this morning, i have to click on everything after a few seconds cos it looks like it's become inactive. From firefox to a single windows explore folder....
Tried many solutions but nothing help. Is someone here who can give advice or help fixing this ?

Thx everyone.

First thx to reply,
my problem seems to be an usb key, i take it out, re-boot and the problem was gone..

Thx anyway :)

well, i realise it start about the same time i start watching some pics family send me on a usb key/cruze or whatever, so i take out the usb from the pc, re-boot him and the windows focus was back, so it looks like my problem was coming from there. Why ? I have no ideas.... maybe it have nothing to do with, but the focus was back when i take out the usb key and i try a lot of others things before i try the usb out.

ah yes, it was about the usb key and it's meaning no ?
you know the little thing with a lot of different shapes or color, you can put date inside (whatever you want, from movie to music, text....), it come with a size storage 2gb to 32 gb for bigger (they could be even bigger but i'm not shure so better check before.)