Cdmyidd.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about MyIdentityDefender Toolbar.
The process known as MyIdentityDefender Toolbar or EDC3.0 Security Toolbar module or safeSEARCH Toolbar
belongs to software MyIdentityDefender Toolbar (CyberDefender Corp.) or CyberDefender Link Patrol or MyIdentityDefender Toolbar or MyIdentityDefender Toolbar (Legacy Games) or safeSEARCH Toolbar (CyberDefender Corp.)
by CyberDefender (www.cyberdefender.com) or Legacy Games.
Description: Cdmyidd.dll is not essential for the Windows OS and causes relatively few problems. Cdmyidd.dll is located in a subfolder of the user's profile folder.
Known file sizes on Windows 10/8/7/XP are 3,962,184 bytes (23% of all occurrences), 3,958,088 bytes and 6 more variants.
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 A26503FE-B3B8-4910-A9DC-9CBD25C6B8D6 or DD662A0C-12FE-4b38-BA53-247F7EC82F46. The program has no visible window. The file is able to monitor web browsers. The service has no detailed description. The file is not a Windows system file. It is a Verisign signed file. The file is certified by a trustworthy company. Cdmyidd.dll is able to record keyboard and mouse inputs and connect to the Internet. Therefore the technical security rating is 50% dangerous.
Recommended: Identify cdmyidd.dll related errors
If cdmyidd.dll is located in a subfolder of "C:\Program Files", the security rating is 50% dangerous. The file size is 3,962,184 bytes (57% of all occurrences), 3,822,920 bytes, 3,814,728 bytes or 3,772,416 bytes. The program is not visible. It is able to monitor web browsers. The service has no detailed description. Cdmyidd.dll is not a Windows system file. The cdmyidd.dll file is a Verisign signed file. The cdmyidd.dll file is digitally signed. Cdmyidd.dll is able to connect to the Internet and record keyboard and mouse inputs.
Important: Some malware camouflages itself as cdmyidd.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the cdmyidd.dll process on your PC to see if it is a threat. If MyIdentityDefender Toolbar 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 ▾
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active cdmyidd process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the cdmyidd.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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.