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Windows 7: FWPUCLNT.DLL issues, Can't load anything or do anything...

27 Aug 2013   #1

Windows 7 Home Premium 64-Bit
FWPUCLNT.DLL issues, Can't load anything or do anything...

Hello there, I've recently came into an issue with my laptop... I turned off my computer and turned it on (most likely for updates I've forgot already) and when I did I started getting spamed by applications saying the following text:
[insert application's name here].exe - Bad Image
C:\Windows\System32\fwpuclnt.dll is either not designed to run on  Windows or it contains an error. 
Try installing the program again using  the original installation media or contact your system administrator or  the software vendor for support.
At first I thought it was nothing until I tried using Chrome or Firefox and couldn't load any website and then came the other issues I can ping websites but not load them.... I also can't load "localhost" but I can load it via

I've never had an issue like this or even noticed that name before, I'm currently on a second OS (linux) so I can post this...

Does anyone know how to fix it or even what that does? Thanks in advance.

My System SpecsSystem Spec
28 Aug 2013   #2

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit


Are you able to System Restore your computer back to a date before the issue occurred?

If that fails and/or you cannot restore, then run SFC to check the integrity of all
Windows 7 system files:
  • Click on Start > Type in search cmd
    Right-click cmd after results are displayed and Run as Administrator
    Type SFC /scannow at the prompt
    (Note: There is a space between SFC and /scannow)
SFC Tutorial

Note   Note
Select option two. If any problems are found, run the scan 3 times and immediately
reboot the computer after each scan.


My System SpecsSystem Spec
28 Aug 2013   #3

Windows 7 Home Premium 64-Bit

Alright I've tried the system restore (Kinda done that before I posted, but I tried the oldest one I had this time) It didn't fix it...

I also tried the SFC /Scannow thing (only did it the one time) and it came back with this:
2013-08-28 22:35:37, Info                  CSI    000001fd [SR] Could not reproject corrupted file [ml:48{24},l:46{23}]"\??\C:\Windows\SysWOW64"\[l:24{12}]"FWPUCLNT.DLL"; source file in store is also corrupted
So I thought I should update on that it also said something on the command propmt about finding errors but can not repair them I checked the log and the only thing I can find is the FWPUCLNT.DLL issue.

What should I do now? I don't have a install disk (My laptop came pre-installed, no backup disk or anything) and I also don't have any windows backups made.
My System SpecsSystem Spec

29 Aug 2013   #4

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit

Run the SFC scan 3 times as it may take 3 attempts to repair.

If not post back and I will ask another member to help with any corrupt files.


My System SpecsSystem Spec
29 Aug 2013   #5

Microsoft Community Contributor Award Recipient

Windows 8.1 Pro x64


Looking at the error, at the end of it you will see that the source file in store is also corrupt. This means that there isn't a suitable replacement file on the system, so it doesn't matter how many times you run SFC, there simply isn't anything it can replace the corrupt file with - so we have to fix this manually :)

SFCFix Script

Warning: this fix is specific to the user in this thread. No one else should follow these instructions as it may cause more harm than good. If you are after assistance, please start a thread of your own.
  1. Download SFCFix.exe (by niemiro) and save this to your Desktop.
  2. Download the file below,, and save this to your Desktop. Ensure that this file is named - do not rename it.
  3. Save any open documents and close all open windows.
  4. On your Desktop, you should see two files: SFCFix.exe and
  5. Drag the file onto the file SFCFix.exe and release it.
  6. SFCFix will now process the script.
  7. Upon completion, a files should be created on your Desktop: SFCFix.txt.
  8. Copy (Ctrl + C) and Paste (Ctrl + V) the contents of this file into your next post for me to analyse please - put [CODE][/CODE] tags around the log to break up the text.

SFC Scan
  1. Click on the Start button and in the search box, type Command Prompt
  2. When you see Command Prompt on the list, right-click on it and select Run as administrator
  3. When command prompt opens, copy and paste the following commands into it, press enter after each

    sfc /scannow

    Wait for this to finish before you continue

    copy %windir%\logs\cbs\cbs.log %userprofile%\Desktop\cbs.txt
  4. This will create a file, cbs.txt on your Desktop. Please attach this to your next post.

My System SpecsSystem Spec
29 Aug 2013   #6

Windows 7 Home Premium 64-Bit

SFCFix version by niemiro.
Start time: 2013-08-29 20:17:38.722
Using .zip script file at C:\Users\[removed]\Desktop\

Successfully took permissions for file or folder C:\Windows\winsxs\wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.17514_none_359f1faa758b2445\FWPUCLNT.DLL

Successfully copied file \\?\C:\Users\[removed]\AppData\Local\niemiro\Archive\FWPUCLNT.DLL to \\?\C:\Windows\winsxs\wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.17514_none_359f1faa758b2445\FWPUCLNT.DLL.

Successfully restored ownership for C:\Windows\winsxs\wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.17514_none_359f1faa758b2445\FWPUCLNT.DLL
Successfully restored permissions on C:\Windows\winsxs\wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.17514_none_359f1faa758b2445\FWPUCLNT.DLL
PowerCopy:: directive completed successfully.

Successfully processed all directives.
SFCFix version by niemiro has completed.
Currently storing 1 datablocks.
Finish time: 2013-08-29 20:17:43.309
Also I thought I'd point this out, not sure if you Copy and paste your steps and then edit them (I'm guessing you do) you have a minor typo in there on step 7.
Quote   Quote: Originally Posted by tom982 View Post
7. Upon completion, a files should be created on your Desktop: SFCFix.txt.
My System SpecsSystem Spec
31 Aug 2013   #7

Microsoft Community Contributor Award Recipient

Windows 8.1 Pro x64

Hi Loper,

Thank you for letting me know! When SFCFix was under development, it produced two logs however this has since been reduced to one and I amended my instructions to the new requirements however it looks like I left a stray s in there.

Your CBS log is showing no issues now so I'm hoping this problem is solved now. How is your computer performing now?

My System SpecsSystem Spec
17 Jul 2015   #8

Win 7 32 bit

just started having issues with WPUCLNT.ddl and some apps requiring it
may be corrupted

tried CMD in admin mode sfc/scannow

to no avail nothing is working

Win 8.1
My System SpecsSystem Spec

 FWPUCLNT.DLL issues, Can't load anything or do anything...

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