Windows 10: Signature Verification Result has shown two files have not been digitally Signed open.dll...

please give me an Answer related that issues

:)

 

When does the Operating system verify the Authenticode Signatures for signed EXEs and signed DLLs?

When PE Files (exes, dlls etc.) are code signed using signtool, they can be verified to check if they have been authored by trusted publishers. In which scenarios does the Operating system actually verify signed EXEs and DLLs?

1. Are signatures of EXEs verified every time they are run?
2. If an EXE has a dynamically linked DLL, is the DLL's signature verified when the EXE is run?
   
3. If the EXE dynamically loads a DLL using LoadLibrary, is the DLL's signature verified when the EXE is run?
4. When an EXE requires elevated privilege (UAC), is the signature of the EXE and the DLL dependencies verified as well? (1-3)

If this questions belongs in a different category or community, please let me know. Thanks.

 

2 .dll files not digitally signed.

Hello! I currently can't launch my Desktop because two .dll files that I think are called amfrt64.dll and amfrt32.dll are not digitally signed. I tried to fix the problem by installing new AMD drivers for my AMD 560 because I thought that might fix it, but all it did was make it so I couldn't even use "disable early driver signature enforcement" to get in. A full system reset is my last resort and I really don't want to lose all my stuff. If anyone can help, then that would make my day. Thank you!

 

wfpcapture service cannot start, because Windows cannot verify the digital signature for this file.

Hi

Welcome to Microsoft community.

The issue you're encountering with the wfpcapture service and Microsoft Message Analyzer is related to Windows' security features, specifically those designed to prevent unsigned or improperly signed drivers from running. This can occur if the driver's digital signature is missing, corrupt, or not recognized by Windows. Here are steps you can take to troubleshoot and potentially resolve this issue:

Run System File Checker (SFC)

Corrupted system files can cause a variety of issues. Running the System File Checker can help repair damaged or missing Windows system files.

• Open Command Prompt as Administrator.
  
• Type sfc /scannow and press Enter.
  
• Allow the scan to complete and repair any found issues.
  

Update or Reinstall the Driver

If the driver for wfpcapture is outdated or corrupted, updating or reinstalling it might resolve the issue.

• If you have a specific installer for the wfpcapture driver, try reinstalling it.
  
• Check the Microsoft Message Analyzer's official website or your hardware manufacturer's website for updated drivers.
  

Disable Driver Signature Enforcement (Temporary Solution)

Disabling driver signature enforcement can allow the driver to run, but this lowers the security of your system and should only be used as a temporary measure to troubleshoot the issue.

• Restart your computer before Windows starts to load.
  
• Select Troubleshoot > Advanced options > Startup Settings and click Restart.
  
• Once your computer restarts, press 7 or F7 to select Disable driver signature enforcement.
  
• Try running the wfpcapture service again.
  

Note: This setting will revert after you restart your computer.

Check for Malware

It's possible that malware could be interfering with the driver's digital signature. Run a thorough scan with your antivirus software.

Perform a Clean Boot

A clean boot can help identify if third-party software conflicts with the wfpcapture service.

• Press Windows + R, type msconfig, and press Enter.
  
• Go to the Services tab, check Hide all Microsoft services, and then click Disable all.
  
• Go to the Startup tab, click Open Task Manager, and disable all startup items.
  
• Restart your computer and try running the wfpcapture service again.
  
• Disclaimer: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem.
  
  These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by step so that it will help you get back on track.
  

Review Group Policy Settings

If your system is part of a domain, group policy settings might prevent unsigned drivers from running.

• Open the Group Policy Editor (gpedit.msc) and navigate to User Configuration > Administrative Templates > System > Driver Installation.
  
• Check the settings for driver installation and digital signatures.
  

Disabling driver signature enforcement is not a long-term solution due to the security risks involved. It's important to identify and address the root cause of the signature verification failure.

Please feel free to let me know how it goes.

Best regards

Derrick Qian | Microsoft Community Support Specialist