What is WUDFHost.exe? Is WUDFHost.exe spyware or a virus?

How to fix WUDFHost.exe related problems?
1. Run Security Task Manager to check your WUDFHost process
2. Run SpeedUpMyPC to fix related speed issues
3. Run Spyware Doctor to remove persistent malware

Process name: Windows Driver Foundation - User-mode Driver Framework Host Process

Product: Windows Vista/7

Company: Microsoft

File: WUDFHost.exe

Security Rating: 1


"WUDFHost.exe" is a part of Windows Vista and Windows 7. Some Windows Vista/7 drivers run in user mode (such as USB drivers), specifically in a process running the executable image WUDFHost.exe. See User Mode Driver Framework for a technical reference. http://www.neuber.com/taskmanager/process/wudfhost.exe.html 

Note: The WUDFHost.exe file is located in the folder C:\Windows\System32. In other cases, WUDFHost.exe is a virus, spyware, trojan or worm! Check this with Security Task Manager.


Click to Run a Free Scan for WUDFHost.exe speed issues.


Users Opinions

Average user rating of WUDFHost.exe: 4 based on 129 votes. Read also the 143 reviews.

4051 users ask for this file. 87 users rated it as not dangerous. 10 users rated it as not so dangerous. 17 users rated it as neutral. 7 users rated it as little bit dangerous. 8 users rated it as dangerous. 27 users didn't rate it ("don't know").


All comments about WUDFHost.exe:
rate1 Service Datei Windows Vista   Bernhard
rate3 Connects the Zune Player to the USB connection.   GaijinTenshi
rate0 not a vista user... just sprung up on my computer cant be sure if it's a copy   Geo
rate0 its not just vista its running itself on my xp machine  
rate0 It occurs in XP Pro, too. It may have been installed with Windows Desktop Search   Phil Wells
rate1 On XP computers in c:\WINDOWS\system32\   tim
rate1 Im not using Windows Vista (Using XP)....it shows up though --- used for zune   Matermine
rate3 It is in my WinXP install under system32   Mark
rate2 Windows Update Driver Foundation for XP driver exchange searches. Part of Microsoft Update extender.   lostinlodos
rate1 It is a part of the PlaysForSure framework for mp3 players and also runs on Windows XP with Media Player 11.   Simon
rate0 Comes up when Creative ZVM is plugged in   mohit
rate0 Like many other Vista files, tries to access the internet.  
rate0 Possibly part of the Nokia N95 setup..?!?.. acts as Media Sync in WMP   robcooper2001
rate1 Connects the Creative Zen mp3 player.  
rate1 It is not dangerous at all, and it is not only part of vista, as i have it in XP.   Jeff
rate1 WINDOWS XP has this file in autoexce part if registry   Pekka Ritamaki
rate1 Appears when Toshiba Gigabeat is connected via USB   Ben
rate0 It is also in Windows XP; must be some update   DiFFeReNT
rate2 Local service occasonially eating up clock cycles   N/A
rate1 Runs in background when Creative Zen Mp3 is connected   Aaron C
rate0 It's not exclusive to Microsoft Vista, I've got it on Windows XP Professional.....its never been exposed to Vista  
rate1 Zune USB driver   Tinface
rate1 Also part of WinXP, this is a helper app to support things like virtual disk drives (e.g. SanDisk Sansa c240). If you unplug your device, this process will stop, and it will start again when you replug your device. If that's happening, it's _probably_ SAFE. Normally occupies 3 - 4 MB of RAM.   A Different Bernhard
rate0 I had my mp3 plugged in and when I tried to end process it recognized my mp3 player was plugged in right after. I have the SPI mp3 player.   Janie
rate2 I dont have windows vista, and my sound just bloody peaked/surged on my speaker for a second and now i see this process which i have never seen before. I kill it and the process comes back.  
rate3 It runs on XP as well after I installed Office converters to be able to read Word documents created in Office 2008 on Office 2003   TheToolMan
rate3 It takes up a lot of memory sometimes  
rate0 It can run away with your resources. It was using 2GB of my RAM   Paul
rate3 Connects the Creative ZEN mp3 player to the USB connect. (checked it by unplugging my Zen, and watching the process end)   Wicked
rate1 MTP process used for transferring files to multimedia devices   Mandril
rate2 showup after installing wmp11 and mtp   sebastian fakoff
rate1 I Connect My Zen Player to My Win XP SP3 PC and it comes Up then.   Geek
rate0 seems to have appeared with my sony ericsson software   edmundo
rate0 It appears if I connect my Sony mp3 player only and Like Bernhard says, desappears if I unplug it. I don't think it's dangerous.   Miguel
rate1 It basically connects certain mp3 players through the USB port. The same process can be used to connect the Zune, ZEN and even certain iPods. Not dangerous, unless you encounter large memory usage. If this happens, unconnect your mp3 player and reconnect it.   Comp. Geek
rate1 Windows User-mode Driver Framework Host  See also: Link   Guy-dude
rate1 It happens when you connect your media player (iPod, Zen, etc.)  See also: Link   Michael
rate1 Used in my case to connect to zune. My daughter moved her zune act to the main computer. while trying to sync, software detected the dns request.   Ted
rate1 Description wudfhost.exe is a Windows Driver Foundation - User-mode Driver Framework Host Process\r from Microsoft Corporation\r belonging to Microsoft® Windows® Operating System  See also: Link   Uk M.S. Tester
rate1 As "A Different Bernhard" said above: "Also part of WinXP, this is a helper app to support things like virtual disk drives (e.g. SanDisk Sansa c240)." I have several sansa devices and when attached in MTP mode via USB, I see an instance of this process for each attached device. Terminates when the Sansa is removed. Uses about 4 MB of RAM   wooster
rate1 Connects to 85.183.195.40:80 from port 52481 on initial use of USB flash drive. The drive works, even if you block the connection.   Dave
rate4 Ad-Aware Free notes this as a "WNAD Ad Client. TwistedHumor. I'm running Windows 7 (Also like Vista) and I do not a own a Zune nor am I using any virtual discs. Ad-Aware recommends to Quarantine it. Not a virus, adware.   TedM
rate0 Also found on the Beta of Windows &   Jeff
rate5 Harmless program (see rating). I use it for shutting down my neighbors computer.   EM EN EM
rate0 nothing but I have vista at home and xp sp3 at work and realized microsoft had taken quite a few of the processes as well as security enhancements and integrated them into sp3 (not well mind you) I would imagine if you see that and your running sp3 thats most likely why  
rate1 Any storrage device connected via usb can potentially require this program. Including many usb flash drives and mp3 players such as Microsoft Zune and Creative Zen, however Ipod does not use it.   Lepar_m
rate0 Name: local service. Used after after connection of nokia 6133, remove thru taskmngr. no issue.   inback09
rate1 its just a microsoft thing once again. its not a virus, but sometimes it starts taking up a lot of cpu processing power and your CPU meter goes to %100 and its pretty danged annoying.   Chuck Norris
rate1 Part of Device USB drivers, is Enable when a Massive storage driver is connected   Malstrom
rate2 can run away with resources, but is necessary for some MP3 players to connect   Krad
rate1 It appears when I plug my Creative Zen in. It appears to be something to do with the USB connection.   KitDreamer
rate1 It dissepears from the processlist as fast as the Sony NWZ-E436F are disconnected. It comes back when it is connected again.   ELF
rate1 Same happens when I plug in my Archos 5. I can't "Safely Remove" the Archos while WUDFhost is running.   FNicodem
rate3 it also appears when my sony ericsson mobile is connected   matt
rate1 It starts when I connect my SonyEricsson mobile via usb.   Les
rate1 Samsung YP-S3 MP3   Naow
rate0 Same as toolman. Have noticed after installing Office patch   Kookaburra
rate1 Sony Walkmanplayer needs this   Mi4uric3
rate0 it appears when I connect my nokia 5800 on the pc, I have xp pro by the way..., not dangerous at all  
rate1 It loads when I plug my Zen Media Player In on XP SP3   Computer Technician
rate3 It starts when I connect my n91 4gb mobile via usb   Muammer
rate1 Windows XP SP3 - Process begins when I am syncing my Creative Labs Nomad Jukebox.   Trixie.in.Dixie
rate2 Zune related   cuca
rate3 Annoying thing and can be removed after Renaming the file in System32, NO WEBSITE gave me solution so i did it my self:@   RanKer
rate1 Appears when Creative Zen player is connected   Lou
rate4 Nervt beim USB sTick   Dirk
rate1 occurs when connecting Samsung MP3 player (Yp53) to USB Running XP Home SP3.   Firmy
rate1 MS Component ; User Mode Driver Host   Michael
rate3 It enables the use of mp players with media player and recharging. When USB for mp player is connected it shows in Task Manager.When removed so is Wugfhost.exe   Nosebleed
rate1 process also runs when Motorola phone is connected via USB   jimfitter
rate1 allows data transfer to mobile devices   slambo511
rate1 it appears when usb devices are connectd.. harmless   pool
rate3 works with my SanDisk MP3 player   StarFishDeb
rate1 Disapears when I disconnect my phone and exit NOKIA OVI SUITE   LordBlunt
rate1 Shows on when Sansa MP3 player is connected via USB. Windows XP   Kris
rate1 it loads drivers for USB connections   hoggie
rate1 Other users say it's a driver for a Zune, Zen, or Sansa e series MP3 player. I only notice it when I have my Sansa Fuze plugged in. It seems to be an MP3 player driver.  
rate2 Windows Driver Foundation - User-mode Driver Framework Host Process   thomas
rate1 From what I have seen it most of these comments it is a .exe from most MP3 compatible USB devices thus so I see it as not a threat however I could be wrong it showed up only recently when I plugged in my Insignia Kix mp3 device and when disconnected the .exe turned itself off.   Zan
rate1 Starts with Sony Ericsson Mobile via USB, Also some licensing service...   matt the doctor
rate1 Windows Driver Foundation - User-mode Driver  See also: Link   Saurabh Tyagi
rate0 starts /stops when plugging /unplugging Creative Zen to USB   Pawel
rate0 it annoys me greatly. just keeps runnining and running - definately associated w/ external flash.   vmv
rate5 It's a part of the freenet virus   Viggy
rate1 Same as others (Sansa USB)   Jimbob
rate1 I know The File Is Used by My MagicJack   Randy
rate5 suddenly appeared with a window update, and won't disable, and i am using Windows XP 2000. Randomly pulls resources even when system is idling, lags system and more than likely is an excuse for forcing people to upgrade   UpsetwithMicrosoft
rate1 Used by windows media player when mp3 connected   Weather5
rate3 Only seems to come up when I plug my samsung mp3 player in  
rate1 It is a file that is used when connecting an MP3 player to a USB drive on your computer.  See also: Link   Eric
rate0 My phone uses the process, but thats cause it can be used as a mp3 player...  
rate1 I disconnect my MP3 player and the process stopped. Plugged the MP3 player back in and the process starts again   Dawn N
rate1 This is simply the USB device driver. It's harmless.   mdg
rate1 Showed up after i installed my Samsung P2450H "Rose Black" monitor. I keep good track of whats installed and not and this was installed with the monitor so i call it safe if you installed a Samsung monitor too.   Alex
rate1 Needed for Zune   Andy
rate4 it cause to hang up my pc. no solution found so i kill the process and delete it! end.   Enayat 567
rate1 Legitimate Windows 7 Service / Windows Driver Foundation - User-mode Driver Framework Host Process   SB
rate3 Its also on Windows 7   Paul
rate1 appeared only when i plugged in my psp   chris
rate1 Windows Driver Foundation - User-mode Driver Framework Host Process.   Kevin
rate1 It is also used for MTP devices such as a Sony Walkman MP3 player to add music, videos, photos, pod casts as well as other things. Thats also assuming that it is in the C:\Windows\System32 folder.   Jakk Ripp
rate1 usb driver for media storage and sync   walter n.
rate1 MTP process used for transferring files to multimedia devices - appears in XP PRO SP3 too when I connect Nokia 6303i Classic through an USB hub   Dax Endar
rate0 It showed up yesterday when I installed Sansa Clip firmware updater. CPU usage 100%. Running XP SP3. I highlighted the process in Task Manager and watched it disappear/end as i unplugged my Sansa Clip. Only location is system 32 folder.   Al
rate1 Apears when mp3 player SanDisk Sansa m250 is connected to PC.   Madalin
rate1 Spawned by Svchost.exe; used for Zune I/O; inc WWW.   SteveO'Bama
rate1 Generic USB Driver Host used by certain USB devices (Zune for one) It activates when Zune is plugged in.   Scott M.
rate1 It is a Windows file. The reason why it eats memory is because a poorly programmer driver is using it. Try to uninstall drivers   newyuppie
rate1 Windows User-mode Driver Framework Host  See also: Link   Unbekannter
rate1 If you dont have iTunes installed, Windows 7 will launch this instead when you plug in an iPhone. It gives you access to the phones picture directory. I believe one process runs for each memory card you plug in as well.   Eric
rate0 when i try to open file location it will not open a folder and when i close it the process starts again   jb
rate1 appeared when i plugged in Zune, fine if in system 32 folder   elaine
rate3 Shows when you use mp player-Charging etc.Goes when diconnected.   cacti
rate1 appears when I plugin bluetooth device on XP Sp3   oğuz
rate1 It starts up when I plug in my Creative Zen Mozaic MP3 player. It's a safe application.   Sara S.
rate1 USB controller/host/driver for portable usb devices like mp3 players.   Nizzine
rate0 I don't know, if it's dangerous, but it shows up when i connect my Samsung Smartphone with my Windows-PC via KIES (USB)   Dark Shaman 667
rate1 shows up for usb flash drive. goes away when u unplug it.   ZiM
rate5 Will Upload Data From Host   Hulu
rate1 I'm assuming it's an acronym for Windows Universal Device Framework Host. It only pops up when I attach my mp3 player that I have not installed the included drivers for.   Reion
rate0 When I plug in a USB pen with lots of big pictures, WUDFHost accesses them all, according to Vista's Resource Monitor. Takes some time.   André
rate1 activated with my Sony mp3 player   claymore
rate1 Starts running on XP when plug samsung mobile into USB. Stops when unplugged. Harmless   Mark
rate2 This appears when i connect my (Nokia 6303i) cellphone (XP SP2)   Répalaki Edömér
rate0 windows 7. No user name or description. At first it opened and I went to properties, then wouldn't open again. It vanished when I googled it and started ad-aware.??  
rate1 appears on my pc in task manager when i connect a mp3 player to the usb port (am running windows XP   tono
rate2 Starts when I plug in my Sony Ericsson Xperia Arc with PC Companion, software for SE cellphones   Åke Bergman
rate3 when i try to download cyclone its appear  
rate3 Runs when nokia 6500 is connected and disappears once a USB connection type is chosen on the phone.   Carlos
rate1 Same as what Mark said. It's about USB (Appears on XP aswell)   DurrFuck
rate3 It appears this file is present in all windows versions from XP onwards, on my system it keeps trying to reserve 20GB of RAM, apparently certain drivers require it, it seems to consistently use up large amounts of RAM though, even when idling.   Adam
rate1 Appears when i connect my samsung android phone. Disappears when on unplug.   kancaras
rate5 Came to me with Chromium 19.0.1042.0.zip Upon double clicking the application in the extracted Chromium, Avira removed two files. That happened three times to me today. It wrote in two folders: in D:\MSCache\B65.tmp (you must delete MSCache folder) Status: Infected Quarantine object: 52c7de64.qua Detection: TR/Crypt.XPACK.Gen3 Source: C:\Users\****\AppData\Local\Windows Driver Foundation\WUDFHost.exe Status: Infected Quarantine object: 4aa3f12c.qua Detection: TR/Crypt.XPACK.Gen2 Both are 'MALWARE'.The term "TR/" denotes a trojan horse that is able to spy out data, to violate your privacy or carry out unwanted modifications to the system. Also it adds a scheduled task. As said the The WUDFHost.exe that is Windows OS component must be located in System32 folder.   Tarig
rate3 Shows up when my ZuneHD is connected. Goes away after disconnecting.   Aris
rate1 it only comes up when connecting phones,mp3 etc through usb port.   oldget
rate4 on Win7 it will start to scan all the files on attached USB-disk. All my files. I suspend it and shutdown PC after done.   anon
rate0 It gives you blue screen of death   noby
rate5 WUDHost.exe will hide. Very very hard to find. It steal internet connection along with changing your network. Ive been looking for the file for years....I just found a place its says its listed in. There will be many more host files with it. WUD will steal configurations and empty out every one of ur file folders on your pc. It will also put parental controls on your act which leaves u only the read and write. no downloading, uploading, opening system files, ...it basically leaves you with nothing. It says its windows but never believe what u read. Found it in resource monitor. Click on overview tab. WUD puts proxy settings on ur connections. It does this even if the dont use proxy settings is checkec. I could go on and on about the damage WUD does to your whole computer. Every bit of it....If u can't see any system files but only empty folders thru out ur system... i ran diagnostics and diagnostics turned to a report over 8 feet long after printing. heres a few lines of my report i ran after my configurations were taken and left me with empty file folders again   PJ
rate1 windows service   user
rate4 It just popped up one day   REL
rate1 it's show up when you use readyboost whit usb flash or sd card.   koko
rate0 Runs when my samsung phone is plugged into the computer   Snakebite
rate1 File will run when the computer is connected via MTP (Media Transfer Protocol) to another device. Mediates the exchange of multimedia files. Harmless, sometimes even necessary. It should not take too many resources.   Deihan

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