Windows 10: Why does my brightness bar pop up and a bunch of random letters get typed every time I...

This has been happening to me for a while now, and its really annoying when I'm trying to type something up and a bunch of letters get typed and then I have to backspace to get rid of it.

:)

 

Keyboard typing random letters

I am running Windows 10 build 18945 and random applications (most of them) are getting typed in random letters. I have found many things saying check your input language but i only have one that is English (US).

And the random letter a key will type is not always the same. I can hold down 'a' for instance and it'll type a series of numbers and letters. So it is not consistent

Example, copy and pasted holding down 'a'

One of the only applications that correctly recognizes the input is Firefox

Pretty sure it isn't a hardware issue, because it is not in all applications.

This is an integrated keyboard in the Lenovo ThinkPad T430s

It also seems to be intermittent

EDIT If i remember right, this started around disabling credential and device guard (I can't use any emulator/virtualization with them on because the virtualization is then exclsuively used by Hyper-V, and i needed to run Intel HAXM)

 

When numlock is on, my desktop keyboard types numbers instead of letters

Hello Vicky,

Please help us with the below information to help you better.

• What is the make and model of your laptop?

This issue might occur if function key in the keyboard is enabled. So as an initial steps, I suggest you to check for the function key in the key board and make sure that it is not enabled.

If the issue still persists you can run Hardware troubleshooter and check if it helps.

Suggest you to follow the steps below and run the
Hardware and Device troubleshooter and check if it helps.

• Type “Troubleshooting” on the search bar.
• Click on troubleshooting, then click on “Hardware and sound”.
• Under Hardware and sound, click on “hardware and devices”.
• A pop-up will appear, click on the “Next" button and your hardware troubleshooting will start.

Please do let us know if you need further assistance, we’ll be glad to assist you.

 

Random Letters Typing

When typing, particularly when typing emails, the symbol \ randomly appears after I type the letter r. Additionally, after I type c or e, occasionally a period randomly follows. More frequently, the window I type in maximizes to the fill screen setting or demaximizes as I type. This also seems to occur randomly. The touchpad is turned off. Also, H is almost always capitalized when it is the second letter of the first word of a sentence - I thought this was my poor typing, but it is consistently H that does it. A few other letters also do that, so perhaps that one is on me, but I don't generally have that problem on other keyboards.

Steps I have tried to fix it:

1. Uninstall and reinstall keyboard drivers.

2. Keyboard troubleshooting wizard.

3. Checked sticky keys and language settings.

4. Downloaded Synaptics driver database for the touchpad.

5. Used an external keyboard - and these problems do not occur on the external keyboard.

This has occurred since I originally set up the computer.

Note: While typing this question, the window maximized to 'fill' in the middle for no apparent reason.