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Windows 7: sfc /scannow - What is ndfhcdiscovery.dll?

23 Mar 2017   #1
hazel123

W7 HP 64 bit
 
 
sfc /scannow - What is ndfhcdiscovery.dll?

Lately my laptop has been hanging and going to a blackscreen and I've had to manually turn off. Ran malwarebytes and nothing. Removed itunes (it causes issues sometimes) - no difference. sfc /scannow wouldn't run and got stuck at 50%.

So did disk check. That said

"Windows replaced bad clusters in file 23105 of name \windows\winsxs\AMC995~1.175\ndfhcdiscovery.dll"

Ran sfc \scannow again. It wouldn't complete again.

Inserted Windows 7 disk to do a repair - said it found nothing to repair.

Ran sfc \scannow again - it said

"Windows resource protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log"

Checked on Windows modules installer was started ran again. Same message.

Looked at CBS log (attached) seems to be a problem with ndfhcdiscovery.dll

Is hard drive failing or is it a Windows corruption, or a virus? Hard drive was new a year ago - not that that means much lol.

Might be coincidence but it's only been doing it since last lot of Windows updates. I just did the important ones and an MSE update.




Attached Files
File Type: txt sfcdetails.txt (43.6 KB, 1 views)
My System SpecsSystem Spec
.
23 Mar 2017   #2
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Hi Hazel,
can you try and run
KB947821, post the log.

if that doesn't work try this
http://www.sysnative.com/niemiro/apps/SFCFix.exe

Roy
My System SpecsSystem Spec
23 Mar 2017   #3
hazel123

W7 HP 64 bit
 
 

Thanks. Tried to run KB947821 and a message popped up saying "This update is not applicable to your computer".

Attached SFC fix log


Attached Files
File Type: txt SFCFix.txt (2.0 KB, 1 views)
My System SpecsSystem Spec
.

23 Mar 2017   #4
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Hi Hazel,
Have you installed any printers lately?
tha main dll from network discovery looks for other wifi equipement, might even be picking up your neighbours.
whats showing in devices and printers are they all yours?


If you navigate to that folder is there a standalone entry for that file name
I DONT have it on mine

Roy
My System SpecsSystem Spec
23 Mar 2017   #5
hazel123

W7 HP 64 bit
 
 

Hi. No just our usual printer. Although recently, Windows updates had an optional driver update for the printer. I didn't install it - maybe I should
My System SpecsSystem Spec
23 Mar 2017   #6
hazel123

W7 HP 64 bit
 
 

Just my laptop and our HP printer showing on devices. Maybe it's a virus? After doing Windows updates the other day I did an MSE scan and a message came up at the start that it was likely there was a virus and this would show in results. Nothing showed in results so I ran Malwarebytes and nothing showed there either.

Maybe I should just reinstall from last system image. It would be nice to know what ndfhc discovery is though - nothing comes up much on google.
My System SpecsSystem Spec
23 Mar 2017   #7
hazel123

W7 HP 64 bit
 
 

Am going to try installing the optional HP driver update on Windows updates, along with another optional update (roll up).

The HP driver update failed to install. Windows update said it was an unknown error.

Could it be something to do with Windows updates done the other day? I only just did the March updates a few days ago.
My System SpecsSystem Spec
23 Mar 2017   #8
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Hi Hazel,
OOOH your a good girl, images are great,

can you run this tool Farbar, (frst) wanna see if it finds anything
Farbar Recovery Scan Tool Download

copy/paste the 2 logs

Roy
My System SpecsSystem Spec
23 Mar 2017   #9
hazel123

W7 HP 64 bit
 
 

Will do. Posted at the same time. HP driver update on Windows updates failed to install. I've done back-ups of all files too :-) System image isn't that recent though unfortunately - about 6 months ago.
My System SpecsSystem Spec
23 Mar 2017   #10
hazel123

W7 HP 64 bit
 
 

Here it is. Only other new thing I've used sometimes recently is a usb mouse. Can't find the second file. After scanning it said there was FRST Additions as well but can't find it. Found it.


Attached Files
File Type: txt FRST.txt (59.6 KB, 2 views)
File Type: txt Addition.txt (31.3 KB, 0 views)
My System SpecsSystem Spec
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 sfc /scannow - What is ndfhcdiscovery.dll?




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