Windows 10: Unwanted transparent box in corner of screen

I have an unwanted transparent box that has recently appeared in the top right hand corner of my screen
I is always there irrespective of what program I am using
Clicking on it does nothing and I cant drag it
I am using Bitdefender antivirus and a full system scan has not shown any problem
When I try to print the screen the box doesn't show so I have attached a photo showing it
Any advice on what it is and how to remove it would be appreciated

:)

 

Cheap Photo box that will get the job done

WEll i took on this project for PP hes a hardware reviewer and wants to get the professional looking pics for the Pc parts

Materials:

• Big cardboard box

• a razor

• white material 3 yards

• cone lights

• stapler

• medical tape

• pvc pipe about 6 inches longer than your box

• white paint any cheap finger paint would work

the project I'm guessing will cost me $30 if it works out properly
I will post pictures and step by step as i do it

 

Cheap Photo box that will get the job done

keep us posted. i'll be interested in this as i've been wanting to do one for a while.

 

Transparency function

Hi,

For us to provide you an accurate resolution on your concern regarding transparency function, we need the following information:

• Were there any updates made on your computer prior to this concern?
• What troubleshooting steps have you taken so far to resolve this?
• When did the issue first begin?
• Could you possibly send us a screenshot of your transparency effects page?

We look forward to your response.