upgraded-to-windows-8.1-new-window-is-losing-focus-after- 10 seconds  

As you are working in one window the focus just switches to the desktop and the mouse position is reset to the top right corner.  Even if you are using the MAC.

It is so frustrating..  No help from MS Support.  I can't believe there is no fix or patch for this.

If I sold software like this .. it would not sell !!

Anyone on this planet have a clue how to  fix this?

Hi,

Do you mean that the desktop is automatically shown up after 5-10 secs no matter which windows is opened and the cursor is automatically reset to top right corner?

Have you checked this issue in another user account in the system or create a new account to check the result?

And you mentioned that this issue only happened after upgraded to Windows 8.1, so I first recommend you install latest Windows updates for Windows 8.1.

Run virus scan to eliiminate malware\virus infection.

Even if you are using the MAC.

Since you mention this, I wonder if you might be using a virtualization solution like Parallels and Windows 8.1 inside a virtual environment. In this case, the input mechanism is provided by the virtualization platform and could be being reset after detecting that the focus has shifted into or out of the virtual environment. The best route for support if you are using a virtualization solution is to post your issue to the virtualization softwares support forums or contact technical support for the software.

Brandon
Windows Outreach Team- IT Pro
Windows for IT Pros on TechNet