Question Windows 10 randomly ignores or doubles key presses.

[remikaly]

Without any software or hardware updates, my computer has begun ignoring or doubling key presses. Sometimes it even registers the double press after another key has been pressed. I have tried updating drivers, multiple keyboards, different USB ports, uninstalling drivers, shutting down every program except Notepad, and I have scanned for malware.
Has anyone encountered an issue like this before?

 

[Colif]

Try a clean boot and see if it changes anything - make sure to read instructions and make sure NOT to disable any microsoft services or windows won't load right - https://support.microsoft.com/en-au/help/929135/how-to-perform-a-clean-boot-in-windows

if clean boot fixes it, it shows its likely a startup program. You should, over a number of startups. restart the programs you stopped to isolate the one that is to blame.

 

[remikaly]

Sadly, this didn't help at all. It's even difficult to log in to Windows, because the issue starts before then.

 

[Colif]

what are specs of the PC?

Any extra devices apart from mouse/kb?

Does it happen with no kb attached? try using the on screen keyboard (its in Ease of access, can find it on logon screen}

 

[Colif]

does it happen in safe mode?
on login screen
click on the power button in bottom right
while holding left shift, click restart now
this should load you into a blue screen on start up
if its a driver issue, kb/mouse should work in here
choose troubleshoot
choose advanced
choose start up options
click the restart button
choose a safe mode (it doesn't matter which) by using number associated with it.
Pc will restart and load safe mode

 

[remikaly]

All extra devices are unplugged. On screen keyboard works fine. Safe mode doesn't fix it.

 

[Colif]

next question is, is it windows or hardware.

safe mode strikes drivers/programs off list

Try making this and see if its same in linux - https://itsfoss.com/create-live-usb-of-ubuntu-in-windows/
you can run it off the USB
if 2 Operating systems have same problem, its hardware

if not, it could be a random error in windows? you could try a reset

 

[remikaly]

Well now it seems that BOTH of my keyboards are having this same issue. My son's works just fine. Now I have to figure out why the Logitech G910 Spectrum and the G910 Spark are both misfiring like this.

 

[Colif]

Have you tried taking key caps off and cleaning them? I have a G910 myself and found my space bar would double space sometimes, so I took most of my alpha keys off and gave it a good wash. There are videos online about taking them all off... i would need to take a photo before to know where all the keys went if I took them all off.

I find hair under keys, I think its where most of mine is going