» Windows System Timer Tool
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Windows System Timer Tool

tool timer windows
Credits: microsoft


Little tool to check and modify the windows system timer.

If you want to know what this is about, you should read this article:
Windows Timer Resolution: Megawatts Wasted

The matter is in my opinion less dramatic as the author of the article states, but he has written down a comprehensive collection of facts about the windows timer. Excellent article!

Source code is here:https://github.com/tebjan/TimerTool

Verison 3 minimizes to system tray and can be started with command line arguments "-t peroidVal" and "-minimized". e.g. put a .bat file into your autostart with the following code:

start "" "C:\PathToTool\TimerTool.exe" -t 0.5 -minimized

Version 2 can set 0.5 ms as timer resolution.

If you like it: Donate some dev bucks, thanks a lot!


24.08.15 [16:46 UTC] by tonfilm | 123701 downloads
Version 3, minimize to tray and command line args
Show 2 older revisions

Older Revisions

25.01.14 [17:46 UTC] by tonfilm | 12741 downloads
Version 2, can now set 0.5ms resolution
21.01.14 [20:07 UTC] by tonfilm | 1717 downloads

sebl 21/01/2014 - 21:41

erm, can you explain it a little bit?

is it manipulating the Timer Precison mentioned here?

tonfilm 21/01/2014 - 22:44

yes, i have added a link to the article..

vollie 11/09/2015 - 03:23

had to use this in my .bat file to get running.

start "" "C:\PathToTool\TimerTool.exe" -t 0.5 -minimized

marcelxvi 18/09/2016 - 19:28

So by default the tool tells me 0,5. I'd however like to change it to 1 but everytime i do set it to 1. It flashes up as 1.00092 for a second and then straight goes back to 0,5. Any idea how to fix this ?

tonfilm 20/09/2016 - 20:13

@marcelxvi there might be another software running that checks the timer and sets it back to 0.5. so you need to disable all running software one after another to see which one is setting the timer to 0.5.

what windows are you using?

marcelxvi 24/09/2016 - 14:26

@tonfilm I'm running windows 10 anniversary update. Actually I've booted into safe mode and the timer was 15 and I could set it 1 just fine. Must be some software then. Can't figure out which at this point tho :/

yummy90 20/10/2016 - 17:49

Finally I can use it on windows 7
works out of the box, thanks

marcelxvi 31/10/2016 - 18:32

@tonfilm i've done some testing now. Started with nothin enabled still had the problem. Then i figured this problem only happens whenever any sort of media is playing or windows sounds are hapening for example. Every time there's a mouseclick for example, it'd go down to 0,5 and back to 1 once it's over. Any heads up on that ?

tonfilm 31/10/2016 - 19:04

@marcelxvi well, only to disable windows sounds completely...


marcelxvi 01/11/2016 - 13:37

@tonfilm sadly that is not an option for me. Gonna test some more things and leave some feedback once I figured the problem just in case others have this problem too

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