How to remove the ddayw virus

Most antivirus programs identify ddayw.dll as malware.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the ddayw.dll malware

Ddayw.dll file information

The process contains no information about the creator.

Description: Ddayw.dll is not essential for Windows and will often cause problems. The file ddayw.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 334,336 bytes (33% of all occurrences), 321,120 bytes or 330,848 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 117B740A-CA0B-46D7-8D96-34F3BA45C66B or B76AF963-96FA-4661-8F55-CAEB93704140 or 4333EDBF-15A7-478C-9184-D5095CEDE373 or 563BCD27-3994-4715-9CF3-C4E3E0E38103. The program has no file description. The program is not visible. There is no detailed description of this service. Ddayw.dll is not a Windows core file. It is an unknown file in the Windows folder. Ddayw.dll is able to monitor web browsers. ddayw.dll appears to be a compressed file. Therefore the technical security rating is 92% dangerous, however you should also read the user reviews.

Recommended: Identify ddayw.dll related errors

If ddayw.dll is located in the Windows folder for temporary files, the security rating is 91% dangerous. The file size is 290,816 bytes. Ddayw.dll is a file with no information about its developer. The program is not visible. The service has no detailed description. Ddayw.dll is not a Windows system file. ddayw.dll appears to be a compressed file.

Important: You should check the ddayw.dll process on your PC to see if it is a threat. If ddayw.dll has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Die ddayw.dll startet sich selbst wieder wenn man sie mit dem Task Manager beendet, soll eine Browser Erweiterung sein für den IE. In die Quarantäne will die datei auch nicht, bekomme immer eine Fehlermeldung

Summary: Average user rating of ddayw.dll: based on 2 votes with 1 user comment. 2 users think ddayw.dll is dangerous and recommend removing it.

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Best practices for resolving ddayw issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active ddayw process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the ddayw.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

ddayw.dll [all]