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Keyboard/Mouse delay

1034 Views 17 Replies 5 Participants Last post by  zebanovich
I apologise, I am new here and desperate for help.

I've had this issue in the past and I started feeling it in the game League of Legends.
In short my keyboard and mouse sometimes have a delay before they react ingame. 1-3 seconds of delay. Sometimes I dont feel it, sometimes I feel a bit, sometimes alot.
Now it seems if I try to go to keyboard tester and spam for example the number 2. You can eventually find a delay where you clicked it for sure, but the number appears after a few seconds. It's like keyboard/mouse stops working for the duration.
It dosnt look like it's my internet. it dosn't make much sense that after reinstalling the whole operating system, the issue still persists. I am out of ideas..
I've accomplished many guides on google about similar problems and still nothing..
MS/fps in games are very good. I don't lag, or have any performence issues. I even deep cleaned my whole computer and changed the thermal paste.
Tempertures are fine. I've tried power options to put it on maximum and probably more things that I dont remember anymore. I am running windows 10. I've had this problem for years. It comes and goes sometimes. Now it's been worse than ever. Keep in mind that this issue comes and goes and for the most part the computer feels good, and keyboard and mouse are functional. But there will be sometimes delays which I am not smart enough to fix. Please, if anybody could help me out..

What have I tried?
Calling my internet provider
Repairing the game/unninstall.
Reinstalling windows and formating the hard drive.
Updating Windows
Deep clean and thermal paste change
Double check for keyboard settings
Check for drivers, which windows says all is gucci.
Power options set to performence
Testing out keyboard/mouse on another computer
Running repair registry
Running troubleshooters in various places

Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 10 Pro, 64 bit, Build 18363, Installed 20201117151508.000000+120
Processor: Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz, Intel64 Family 6 Model 60 Stepping 3, CPU Count: 4
Total Physical RAM: 16 GB
Graphics Card: NVIDIA GeForce GTX 960
Hard Drives: C: 232 GB (176 GB Free); D: 931 GB (843 GB Free);
Motherboard: MSI Z97 PC Mate(MS-7850), ver 1.0, s/n To be filled by O.E.M.
System: American Megatrends Inc., ver ALASKA - 1072009, s/n To be filled by O.E.M.
Antivirus: Windows Defender, Enabled and Updated


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Try finding your keyboard driver from the machine's vendor website. Sometimes they are better than what Windows 10 finds via Device Manager.
I tried to look up for it. But i dont see drivers that support my keyboard. Coolermaster 350ck
Try to reinstall your device drivers or check the device setting or change your mouse sensitivity.
I reinstalled all my motherboards drivers and for a day the problem was solved. I did not do anything to the PC, other than play league of legends. Next day same problem but I a bit diffrent. Feels like it's not as often but for longer perioids of time(up to 6 seconds of keyboard not working but lights are on) The motherboard drivers did not help my mouse tho. As it feels weird no matter the day. I just know something is not right with my mouse as it feels as half of the driver is not working( I know how it feels to play without a driver ). Note: I did heavily test my latency on latency.mon and even when the latency is perfect, the issue still occurs. Also diffrent usb ports have diffrent types of lag. I've noticed that some are worse or feel slightly diffrent. Could my motherboard be done? Or is there a way I could locate faulty files on my computer. i dont know..
Change to a known working keyboard and mouse and see if anything is different
Same problem. I've used 3 keyboards and all 3 have the same problem.
Hello, I had this issue with code editing, sometimes random keys would lag, other times they would not repeat fast enough resulting in bad lines.

I've searched every corner on the internet and found no solution.

Finally the only option was isolating things and a lot of trial and error which took a few days until I found a solution which was then fixed in the next release of editor.

Here is a workaround that worked for me:
In control panel open "keyboard"

Set character repeat to max 25%
Set repeat rate to max. 50% or even lower

This might be too slow for a gamer, but we're doing this only to troubleshoot problems for now, you can increase those later, up to a point where it no longer works.

Next step is to add your game (LoL game) to Windows defender exclusion list by following below steps:

Windows defender -> Virus & Threat protection -> Virus & Threat protection settings -> manage settings ->
exclusion -> add or remove exclusions -> + add an exclusion -> folder -> select root folder where LoL game is installed.

restart computer, and try out your game.
Note that if keyboard is too slow for you, you don't care for now, your primary goal here is to confirm the issue is gone even if keyboard is too slow.

If there is no positive result, attach your keyboard to another USB port and try again without modifying anything else, and so on for each USB port.

If nothing works, lower repeat rate to 25% and try all USB ports again.

If still not luck, please disable Windows defender "real time protection service" in Windows Security app under "Virus & Threat protection settings"

do not restart computer and try to reproduce your issue again with all USB ports.

If you see any change, stop at that point and try to figure out what made a difference, then you can slowly increase keyboard repeat rates to find optimum rate.
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I bought a new motherboard, that did not fix the issue. Idk what to do.
Did you try your 3 keyboards with the new motherboard?
I tried 2 keyboards, 2 mice on the new motherboard.
On top of that I changed my power supply. Updated my bios. Installed an older version of my GPU.

Still no results.
Did you try out solution in my post #9 ( ?
Hey and thank you for the reply.
I Did that way before I made this post. Riot games advised me to do so so I did. Still nothing.
Does your issue persist when you type into the box in keyboard properties?, see screenshot below:

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Yup, still the same issue.
Try spamming the onscreen keyboard. If it doesn't lag then I suspect a keylogger.
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Yup, still the same issue.
Then it's not an issue with installable software (ex. game or editor)

It's either OS/Driver or indeed a keylogger as @lunarlander says.
Although if it's keylogger then it's certainly a bad written one, and since you reinstalled OS,
the only way it could get into your PC again is by installing same set of favorite software again,
such as pirated version of game.

You said keyboard works fine on another PC so it's not keyboard.
You said to have reinstalled OS but there is one obvious discrepancy:
Your OS version 18363 is way out of date which means you do not benefit from latest fixes or improvements.
Currently latest version is 19042 which is 1 year ahead of yours (Windows updates do not count here)
Download Windows 10 (

I think it's time to back up ALL of your files to external drive and do clean reinstall:

When you're done, first step is to install nothing (not even a browser), and do not use Windows update.

In your fresh system open keyboard properties and try to reproduce problem by typing letters into dialog box shown in my previous post.

Next step is to get MSI drivers from here (Only drivers, not utilities or BIOS files):

Driver install is done this way:
1. Install chipset driver, restart PC
2. Install the rest of drivers, restart PC

Again test keyboard trough keyboard dialog.

Next step is to install Windows updates, excluding following:
1. Optional or Preview updates
2. Device drivers

Again test keyboard trough keyboard dialog, if the problem persists, try out other USB ports and keyboards.

Next step is to install your game and check for game updates.
Go ahead and test it.

If this did not solve your problem, create live linux USB, boot from USB, and test your keyboard and mouse.
If the problem is present there as well, it's motherboard, USB port or BIOS issue, otherwise it's an issue with Windows and/or drivers, in which case use Windows updates and install optional and preview updates, as well as any drivers it might offer, then try your tests again.
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