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Old 03-13-2017, 10:09 PM   #1
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Join Date: Mar 2017
Posts: 2
Default High CPU since Win 10 Anniversary update

As with some others posting here, I've been experiencing high CPU usage of WUDFHost.exe since updating to Win 10 Anniversary edition.

It only really becomes an issue when I have Remote Desktop Connection Manager maximised on one of my two monitors. When I minimise it, the CPU drops again, so I guess it's struggling to "paint" the RDC window while it's up.

Downloaded and ran the Support Tool, please let me know any other details I can provide:

Computer: Hewlett-Packard - HP EliteBook Folio 9470m CNU34194YV
OS: Microsoft Windows 10 Enterprise (x64-based PC), No Service Pack, English
OS Build: 10.0.14393.0 (Debug = False)
OS Build Label: 14393.rs1_release.161220-1747
System Bios: Version 68IBD Ver. F.46 built 2013/07/16
CPU: Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
Number of Cores: 4
Physical Memory:
Bank 2 8Gb Bottom-Slot 2(under) Synchronous 1600ns 16KTF1G64HZ-1G6E1
Free Space: 20313 MB
Primary Resolution: 1920x1080x32
Desktop Size: 3840x1080
Number of Monitors Connected: 2
Graphics: Intel(R) HD Graphics 4000 (Intel Corporation)
Graphics Driver: Dated 2015/12/21
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.2.1407.0 Dated 2017/03/06
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.2.1407.0 Dated 2017/03/06
WEI Base Score is 4.9, CPU 7.4, RAM 7.4, GPU 5.1, Gaming 4.9, Disk 8.1
Desktop Mode: Aero
Password required after wakeup: Unknown
Running on AC-power
Power Profile: High Performance - Favors performance, but may use more energy.
DL Version Check OK

Monitors Connected:
S24D390 Manufacturer: SAM ProductCode: 0B65 Serial: 808663088 Built: 18/2015
S24D390 Manufacturer: SAM ProductCode: 0B65 Serial: 808663088 Built: 18/2015

Installed Packages:

DisplayLink Graphics Driver (8.2.1409.0) on 2017/03/13 Status is Installed

Third party layout applications running:

No third party layout utilities are found

USB3.0 Host Controller Drivers Installed:

Name: Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
Driver Provider: Microsoft
Driver Version: 10.0.14393.0
Driver Date: 2016/07/15
Device ID: PCI\VEN_8086&DEV_1E31&SUBSYS_18DF103C&REV_04\3&214 36425&0&A0

Installed Video Codecs:

Connected USB Devices:

DisplayLink Version: 8.2.1407.0
DisplayLink Installer Source: Normal or WU installed
DisplayLink Audio Version: (DisplayLink USB Audio 2.0 Class Driver)
DisplayLink Ethernet Version: (DisplayLink USB CDC NCM Driver)
No DL USB I/O drivers found.
DisplayLink RS Version:8.2.1407.0 (DisplayLink Core Software v8.2.1407.0)

--------- Nivo Info ---------

Attached USB device(s) matching our VID:

Nivo's that have been attached:

Hardware IDs:
DisplayLink Audio
USB Composite Device
Kensington USB3.0 2X Video Dock
DisplayLink Ethernet
Kensington USB3.0 2X Video Dock

Large screen boost:
Not supported
Boost policy G setting: Default
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Old 03-23-2017, 10:06 PM   #2
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Join Date: Mar 2017
Posts: 2

I, too, am curious as to any news/updates regarding this issue.
Ian is offline  
Old 04-11-2017, 03:21 PM   #3
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Join Date: Apr 2017
Posts: 1
Default WUDFHost.exe high CPU - one solved at least!

I didn't have this issue until a couple of weeks ago on Windows 10. All of a sudden the WUDFHost ran at 30-50% in Task Manager and pushed the CPU to 100% virtually all the time. This slowed the PC to a point of being nearly useless. It seemed to coincide with a large update to Windows.

If I stopped the WUDFHost in Task Manager the CPU immediately dropped to 70% but it popped back up a moment later. This meant that something was relaunching ever few seconds. I had another PC which was unaffected.

I eventually found it. I had been doing some work with Near Field Communications about a year ago and had loaded the driver for an NXP dongle. I hadn't used it for a while. I removed the NXP program and associated entry for the hardware in Drivers. I restarted the PC and had an immediate result with the CPU no longer pushing 100% and the WUDFHost no longer visibly ran. The CPU now hovers around 27%.

So a simple deep tidy up and getting rid of the dead wood cured it. I would suspect most others are the result of a similar driver conflict. IOBit Driver Booster had not found it needed updating.

I found many useless suggestions on the internet to resolve the problem and a number of them were close to being stupidly dangerous to the health of the PC.
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