05-31-2017 12:50 PM
recently I noticed that on my up-to-date Windows 10 (Creators Update) there is a process called "WMI Provider Host" (WmiPrvSE.exe) constantly using 1-3% CPU no matter what you are doing. I've been observing this behaviour just recently (maybe 1-2 weeks). So I started with a fresh (completely clean) Windows 10 installation on my Thinkpad X260. I observed this behaviour instantly after Windows finished its instalation and update process without installing any custom software from Lenovo website. When I try to kill this WMI host instance, it is restarted imidiatelly and problem continues. I attached threads output from ProcessExplorer. I looks like the thread execution is deadlocked or something similar.
So I started digging which application is causing this WMI host cpu usage. After disabling Synaptic Pointing Device service called "SynTPEnhService" this behaviour disappeared. So I started digging around Synaptic executables. I was able to find out, that process causing this cpu usage is SynTPEnh.exe, which I believe is some kind of main (parrent) process for Synaptic driver functions. When I kill this particular process, then I am able to pernamently kill the WMI host causing those troubles. Well, it actually restarts again, but has no cpu usage. I am using latest version of Synaptic drivers available, which is 22.214.171.124. Is anybody else observing such behaviour? What is the solution for this problem? By disabling SynTPEnhService you loose your trackpoint and touchpad setup.
Thanks for help,
06-17-2017 12:34 PM
I've been chasing this issue on my Gen 1 X1 Yoga. The fix for me was rolling back the driver from 126.96.36.199 to 188.8.131.52. Don't know if any functionality has been lost.
Wish I'd found this thread before spending a couple of hours with msconfig...
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06-19-2017 10:10 AM
I can confirm that downgrading to 184.108.40.206 solves the problem. But it's rather a temporary workaround than solution. Anyway, thank you for suggestion.
07-26-2017 02:38 AM
you can uninstall current driver from Windows Device Manager. Just find the Synaptic driver item (mouse controllers), rightclick and choose uninstall. Then you have to download the older driver mentioned above. This is tricky. I was not able to find that older driver using normal way on those totally stupid "super modern cool" websites Lenovo Support has. So I found the driver executable name using Google and then I crafted the download link myself. Here is the link:
Cool you bought premium Lenovo machine which is more expesive that MacbookPro and actually nobody (including Lenovo) gives a sh*t. With my best Apu voice: "Thank you, come again". Fo me personally, I learnt my lesson.