In the middle of a game, (i play windowed mode), a separate alt-tabbed window pops up for about 0.5 seconds and causes my mouse to turn back to normal mouse, and i cannot move around in game using the mouse, i have to hit alt-tab again to get league back as the main window for the mouse to work properly. Annoying AF.
Is the new window a League window, or is it from another app? Does this also occur if you use fullscreen or borderless?
I HAD THE SAME PROBLEM. I THOUGHT SOMETHING WAS WRONG WITH MY COMPUTER.
It's not the client. It's the windows update, caused by Office.
Search for "Task Scheduler" in your windows search bar and open it.
In the scrolldown menu at the bottom of the window that pops up, double click the task "OfficeBackgroundTaskHandlerLogon".
Disable "OfficeBackgroundTaskHandlerRegistration.exe"
Making a thread with this fix.
