What is WUDFHost.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the WUDFHost.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for WUDFHost.exe related errors

WUDFHost.exe file information

Windows Task Manager with WUDFHost
WUDFHost.exe process in Windows Task Manager

The process known as Windows Driver Foundation - User-mode Driver Framework Host Process belongs to software Microsoft Windows Operating System by Microsoft (

Description: The original WUDFHost.exe is an important part of Windows and rarely causes problems. WUDFHost.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 8/7/XP are 146,432 bytes (33% of all occurrences), 142,336 bytes and 6 more variants. 
The program is not visible. WUDFHost.exe is a trustworthy file from Microsoft. It is not a Windows system file. Therefore the technical security rating is 15% dangerous; however you should also read the user reviews.

Recommended: Identify WUDFHost.exe related errors

If WUDFHost.exe is located in a subfolder of C:\Windows, the security rating is 50% dangerous. The file size is 229,888 bytes. It is an unknown file in the Windows folder. The program has no visible window. The WUDFHost.exe file is not a Windows core file.

Important: Some malware disguises itself as WUDFHost.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the WUDFHost.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

I agree with the fact that this program is harmless. I does use a huge amount of CPU processing time at start up, but this should subside in about 2 to 3 min. I'm running an i5 Gaming system with 16 Gigs of memory, and all my CPU cores lit up for about 2 min, it's back to normal now only using about 1 to 0.5 % of CPU usage. I don't recommend deleting or stopping this process.
  Christopher John  
Memory hogger
Shows up when I plug in USB devices, such as cellular phones.
C:\Program Files (x86)\Common Files\Windows Driver Foundation\WUDFHost.exe and cvtres.exe -a scrypt - bitcoin miner - Hiding use Process Explorer - Remove using HitmanPro and malwarebytes
  Somebody   (further information)
This is a host service for Charging my Daughters Android Cell Phone.
Runs on SVR 2003 as well, seems to be used by ABB 800XA automation software - runs about 10 copies at once.
I found it after I installed Paragon Hard Disk Manager 14
Agree with Another Berhnard, this is on XP and is present when Galaxy S2 plugged in and removes itself on disconnection. I think it messes with my keyboard though, I get things like that happen when it is running and not when it isn't.
  Mike Russell  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of WUDFHost.exe: based on 145 votes with 9 reviews. 95 users think WUDFHost.exe is essential for Windows or an installed application. 13 users think it's probably harmless. 20 users think it's neither essential nor dangerous. 7 users suspect danger. 10 users think WUDFHost.exe is dangerous and recommend removing it. 30 users don't grade WUDFHost.exe ("not sure about it").

Do you have additional information?
What do you know about WUDFHost.exe:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving WUDFHost issues

A clean and tidy computer is the key requirement for avoiding problems with WUDFHost. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the WUDFHost.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

WUDFHost.exe [all]