High DPC Latency caused by wdf01000.sys

Anonymous

Hello,

I am posting this regarding a problem that I ran across in my laptop at the beginning of august 2019, the problem is that I am getting high DPC Latency levels that are apparently caused by wdf01000.sys according to the latency checking program, latencymon.

I really want to know if there is a fix since I have browsed a wide range of sites trying to find a fix, I could not find any. And also my keyboard stopped working for some reason, if its ok I would like to find a fix for that, but I prioritize fixing the high latency over the keyboard.

Thank you for taking your time to read this.

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48 answers

Anonymous

2019-09-05T16:00:32+00:00

We have been noticing this trend with high CPU after a fresh install. Normally, Windows Defender is the culprit, in addition, Windows 10 Update applying updates and like Defender definitions.

Sometimes, just giving it a few days to a week, it will eventually settle down - this has worked in most cases. So, please consider that first.

Other things you can also check include:

Look for blank icons on the desktop and delete them.

Open File Explorer

Open This PC

Right click your local drive where Windows 10 is install (you will see the Windows logo on it)

Click Properties

Click the Hardware tab

What is the name of the drive listed?

Is it an SSD?

If it is, you might need to update the firmware.

Open Start > Settings > Privacy > Background apps

Disable all Background apps.

Also, check whats starting up with Windows.

Press Windows key + X

Click Task Manager

Click Startup tab

Disable all except Windows Defender.

Press Windows key + R

Type: msconfig

Hit Enter

Go to the services tab

Check the box,

hide all Microsoft services

Disable the remaining services

Click Apply then OK

Restart if prompted

Open Start, type: problem reports

Hit Enter

Delete any failed or pending reports.

Go to Start > Settings > System > Notifications and actions > Turn off "Show me tips about Windows."

If you have Chrome installed, uninstall then reinstall it.

Open Start, type: CMD

Right click CMD

Click Run as administrator

Type: powercfg -restoredefaultschemes

Hit Enter

Exit

Create an entirely new account and delete the current one.

https://www.groovypost.com/howto/create-manage-...

——————————————————————

Disable Telemetry

Click Start > Settings > Privacy > Feedback and diagnostics.

Set it to basic

Click Start

Type: regedit

Right click regedit

Click Run as administrator

Navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DataCollection.

Right click and create a DWORD value named AllowTelemetry then set 0

Press Windows key + R

Type gpedit.msc then hit Enter

Expand Computer Configuration > Administrative Templates > Windows Components

In the Windows Components dialog, find and right-click on Data Collection and Preview Builds

Then double-click Allow Telemetry in the right pane

Choose Disabled and choose 3-Full from the drop-down menu.

Then click OK to save settings

Click Apply and ok > reboot computer
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Anonymous

2019-09-05T15:49:52+00:00

and also task manager shows me that im on 100% disk space sometimes. and my cpu usage is 100% too, but memory and network are good.
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Anonymous

2019-09-05T15:43:22+00:00

I did the thing that will keep the update from installing, i hope it doesnt install because removing it somewhat helped.
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Anonymous

2019-09-05T15:41:06+00:00
I found this thread on Reddit:

https://www.reddit.com/r/Windows10/comments/bu3...

It seems to be primary issue with Windows 10 1903 even prior to the recent cumulative update.

I would also recommend you file a bug report; send me the short link so I can vote on it and bring it to the attention of the Windows engineers.

https://windows10.help/blogs/entry/54-how-to-su...

Ultimately, it looks like the best option would be to rollback or downgrade to an earlier version of Windows 10.

If you open to doing that, here are the steps:

Step 1: Go to another working computer with Internet access, download Windows 10 1809 from the following link:

https://uupdump.ml/selectlang.php?id=48dd563c-8...

Choose the following:
- Windows Final
- Windows 10, version 1809
- Windows 10 Pro + Home
- English
- x64 (64 bit) x32 (32 bit)
Step 2: create a bootable copy

https://answers.microsoft.com/en-us/windows/wik...

Step 3: perform a custom install

http://answers.microsoft.com/en-us/insider/wiki...

Step 4: how to recover your files from Windows.old:

https://answers.microsoft.com/en-us/windows/for...

Windows Update might attempt to upgrade to Windows 10 1903 again. See instructions how to block it:

https://www.groovypost.com/howto/block-windows-...

Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Information in the above link is sourced from a trusted Microsoft MVP blog.
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Anonymous

2019-09-05T15:05:30+00:00

And also my lowest dpc latency went from 400 to 200.
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