Windows 10: How do I get rid of this black box

i was trying to test my pc by pressing every button on my keyboard and afterwards a small black box appeared on the bottom right of my screen and will only appear when in a game

:)

 

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.

 

Black Dot and Numbers filled up in the password box and the Notepad

Hello,

There are several ways to troubleshoot sign-in issues in Windows 10. Since the system automatically fills out the password box with black dots and already did a few troubleshooting steps, we suggest creating a new user account to see if this issue will occur
on a new user profile. This will help you check if your current user account is corrupted. To do this, simply follow the steps below:

• 
  Select the Start button, then select Settings > Accounts > Family
  & other people > Add someone else to this PC.
  
• 
  Type a user name, password, password hint, and then select Next.
  

Should you have further questions, please let us know.