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winmadd.dll - Analyze and How to Fix Errors

β˜…β˜…β˜…β˜…β˜… Verified File (27.08.2026)

⚠️ Important Notice: Discover the functions and fix issues related to winmadd.dll for smoother software performance. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:32-bit (x86)Compatible with 32 and 64-bit Windows
Creation date14.02.2010 17:35:43
File version2.1.0.5593
Antivirus scanβœ… Clean No viruses detected.
Digital signatureβœ… Have signedFile have signature, it is original file.
Hash Integrityβœ… MD5: VerifiedFile Hash protection is missing.
File size12.5 kb.12840 bytes.

Hashes:

MD5: 171bc3c52078869798e56534eb539f51 βœ…
SHA-1: 91ced1293869a52cae6c58c2a3ac4bce6e1fa2b7
SHA-256: f514977dcff9b56c1c35cb8d454d6e1047c9de7af062ff3b5de87523120e900b
SHA-512: 7335a363c932f87d82effaa1778df4f77934f3d3cd426c72041041bae4a60f412bc50ccb0ed6a4b229cc1170fb4107f5d39e8b5a291cda859a7539f84fd60a19

Digital file signature winmadd.dll βœ…

Publisher: Mellanox Technologies,LTD
Issuer: VeriSign Class 3 Code Signing 2004 CA
Encryption algorithm: SHA1
Time stamp: Feb 16 15:40:38 2010 GMT

βœ… This file is compatible with 32-bit Windows and can run on βœ… 64-bit Windows (via the WOW64 subsystem).

File Description: winmadd.dll

The file winmadd.dll is not a standard, legitimate Microsoft Windows system file. It is typically associated with adware, potentially unwanted programs (PUPs), or malware, often linked to browser hijackers or tracking software (such as "WinMadd" or related adware strains).

Standard File Location

Because it is malicious or unwanted software, it does not have a legitimate Windows system directory location. It is usually found in hidden application folders or temporary paths, such as:

  • C:\Users\<Username>\AppData\Local\
  • C:\Users\<Username>\AppData\Roaming\
  • C:\ProgramData\

How to Fix winmadd.dll Errors Without Downloading Anything

Errors regarding this file usually appear because your antivirus deleted the malicious file, but a scheduled task or registry key is still trying to run it at startup. You can fix this entirely using built-in Windows tools.

1. Disable the Startup Trigger via Task Scheduler

  1. Press Windows Key + R, type taskschd.msc, and press Enter.
  2. Click on Task Scheduler Library in the left pane.
  3. Look through the list in the middle pane for any tasks with suspicious names or names related to "winmadd".
  4. Select the task, right-click it, and choose Delete.

2. Remove the Registry Entries

  1. Press Windows Key + R, type regedit, and press Enter.
  2. Press Ctrl + F to open the Search window.
  3. Type winmadd.dll into the box and click Find Next.
  4. If a match is found in a startup key (like Run or RunOnce), right-click the registry value and select Delete.
  5. Press F3 to find the next instance and repeat until no more entries are found.

3. Clear Temporary Files

  1. Press Windows Key + R, type %localappdata%, and press Enter.
  2. Look for any folders named winmadd or unknown folders created around the time the error started, and delete them.
  3. Press Windows Key + R, type %temp%, and press Enter.
  4. Select all files (Ctrl + A) and delete them to clear active scripts.

4. Run Built-In Windows Defender

  1. Press the Windows Key, type Windows Security, and press Enter.
  2. Click on Virus & threat protection.
  3. Click on Scan options, select Full scan or Microsoft Defender Offline scan, and click Scan now.

πŸ“Š Diagnostics Tool: Verify Your winmadd.dll File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
KERNEL32.dll
└── winmadd.dll

Mellanox Technologies,LTD