White box on the top right corner of the screen

Hi,

Thank you for writing to Microsoft Community Forums.

I understand that you are able to see a white box on top right corner of the screen and it hides some of the apps on the screen. For further clarity on the screen, please respond to the questions below:

1. Which build version of Windows 10 are you using currently?

2. Do you see anything written on the white box?

3. Do you get the box when you restart the PC?

Meanwhile, I would suggest you to try performing a clean boot and check if the issue persists.

Performing a clean boot will start the computer with minimal set of drivers and programs, to determine whether a background program is causing the issue. Some of the Startup programs will not load after performing a clean boot on the computer. However, that functionality will return when you reset the computer to start normally after finishing the troubleshooting.

To perform a clean boot on the computer refer to the article How to perform a clean boot in Windows.

If performing a clean boot fixes the issue then, please refer to the section How to determine what is causing the problem after you do a clean boot to check which program is causing the issue.

Note: Please refer the section Reset the computer to start normally after clean boot troubleshooting to boot the computer in to normal mode after troubleshooting.

Regards,

Prakhar Khare

Microsoft Community – Moderator

1. My build is version 1803, OS build is 17134.829 and im on WIndows 10 Pro

2. No

3. Yes I do.

Hi,

Thank you for replying with the information.

Have you tried performing Clean Boot on the PC? If yes, what was the result?

Please reply with the status of the issue to assist you further.

Regards,

Prakhar Khare

Microsoft Community – Moderator