Significant delay of on screen response to keystrokes. Sometimes 2 seconds before a single stroke will appear. Or the whole word is delayed. I never dreamed I could type faster than a computer shows on screen. It's not every time.

Mouse response is erratic too.

So what are the possible causes?

Laptop or desktop? Wireless mouse and keyboard? What program are you typing in?

I had those symptoms on a Windows 10 laptop. I opened program manager and saw CPU usage was at 100%. It was being driven by several instances of an audio driver.

I googled the name and found other people complaining about it. The best solution I found that worked explained someone planted crypto mining code in the driver and was using your CPU. The solution was to go to my computer, disable the audio driver. It got replaced by a default one.

This fixed the problem for me. The solution I googled had the step by step detail.

quote:

Originally posted by walker77:
Laptop or desktop? Wireless mouse and keyboard? What program are you typing in?

Desktop. Any Program. wireless both. Delays even in typing this note.

Sounds like a virus to me. Clean your system.

Most likely something (malware, adware, etc) is soaking up an inordinate amount of system resources.
A scan with something like Malwarebytes is a good start.

Pull up Task Manager and look at your performance tab. You should be able to list programs by their memory usage.

If both mouse & keyboard are wireless, have we tried new batteries?
Anything new on the desktop between the devices and their “radio”

Same here, it comes and goes, new keyboard and mouse and new batteries as well, wireless win10 desktop.

Looking at Performance tab for now it's low 3% normally with some occasional spikes to 30% or 40% but they dont last long at all

The mouse will hang when moving, almost like the old roller ball mouse when it'd get full of lint. keyboard will stall, then enter multiples of the same keystroke.

Most of that went away when I upgraded the keyboard/mouse combo, it was time anyway, but the mouse thing still happens, in fact thee keyboard happened when typing this paragraph.

RF interference or poor signal perhaps?

I had this exact problem with a couple of my Logitech wireless keyboard mouse combos. The mouse rarely had a problem, but the keyboards would give me fits with a discernible delay when typing.

I fixed one by moving the USB receiver, using an extension cable, to the top of my desk. It was previously behind the computer.
The other was fixed by using a short USB hub to get closer to line of sight for the keyboard to the receiver.

They both worked fine initially, then one day they just started acting up, really strange.

YMMV, good luck.

if usb try another port, disk cleanup, clear browser history, re-boot.

quote:

Originally posted by hudr:
Most likely something (malware, adware, etc) is soaking up an inordinate amount of system resources.

Yep. But before anything else, first try restarting your computer. That's almost always Step #1 when confronted with computer issues.

quote:

RF interference or poor signal perhaps?

that's what I'm thinking, I'll move the usb from the back of the PC to the front, see what happens.

MWB premium 4.1.0. finds no threats.

Just moved mouse and keyboard receivers more to the front

Hope for the best

Win10 has some issues with my logitec wireless mice at random times - but I haven't had an issue with keyboards. The older ones with the USB RF receiver will sometimes have lag after a windows update - seems like they fix it with 1, then break it again later.
My bluetooth MX master hasn't had that issue.

So far so good with the USB receivers real close to the mouse and keyboard.

My new Logitech combo came with an extender cable for the USB, plugged that in and ran it down close to the set and it's been good so far.

Seems like a RF problem, not malware...

RF interference or poor signal perhaps?

As others have said this is probably the issue. I am having the same problem and will be purchasing an extender cable to see if it fixes the problem.

Had a similar problem that ended up being the driver for the NVIDIA video card. Updated the driver manually and never happened again.