Windows 10: How to verify DLL files?

Hi,Is there a way to verify the suspicious DLL files and also windows exectutables? like an official microsoft repository Thank you.

:)

 

DLL FILE DEBUG

For some reason I cannot register a .dll file. I've verified the file path but it fails. What steps to debug the file??

 

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.

 

.DLL file

Hi Jerry,

Specific programs use DLL files to function properly in a Windows environment. If the DLL file gets misplaced, deleted, or corrupted, the error "____.dll is missing" appears. We'd like to learn more about your concern so that we could provide
the proper resolution. We just have a few questions for you:

• Which build version of Windows 10 is on your computer? To check, click
  Start, type winver, and press Enter. For example, 14393.1066.
• Did you make any changes to your computer before this started happening, like installing or uninstalling a program?
• What troubleshooting steps have you done so far?

As an initial recommendation, we suggest that you disable your Startup programs to isolate the cause of the error. To do this, follow these steps:

• Right-click the taskbar and select Task Manager.
• Click More details.
• Go to the Startup tab.
• Right-click every listed program and choose Disable.
• Restart your computer and check if the issue persists.
  
• If the error disappears, enable one of the programs and restart your computer to check if the error reappears; this is to pinpoint exactly which program is causing the error. Do this for all Startup programs until you find the cause.
• Once you've found the program that's causing the error, you can then try uninstalling and reinstalling it.

We'll wait for your response and the results of the troubleshooting.

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