How to remove an MIDIDef error
The free file information forum can help you determine if MIDIDef.exe is a virus, trojan, spyware, or adware that you can remove, or a file belonging to a Windows system or an application you can trust.
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MIDIDef.exe file information
The process known as mididef belongs to software Creative Audio Product by Creative Technology (www.creative.com).
Description: The file MIDIDef.exe is located in the folder C:\Windows.
Known file sizes on Windows 7/XP are 25,600 bytes (33% of all occurrences), 49,152 bytes and 7 more variants. 
The program has a visible window. The application starts upon Windows startup (see Registry key: HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Runonce, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce).
The file is not a Windows core file.
Therefore the technical security rating is 21% dangerous, however also read the users reviews.
Recommended: Identify MIDIDef.exe related errors
If MIDIDef.exe is located in the folder C:\Windows\System32, the security rating is 24% dangerous. The file size is 28,672 bytes (68% of all occurrences), 31,232 bytes or 34,816 bytes. The program has a visible window. The program starts upon Windows startup (see Registry key: HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Runonce, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce). MIDIDef.exe is not a Windows system file. MIDIDef.exe seems to be a compressed file.
External information from Paul Collins:
- "SetDefaultMIDI": Related to a Soundblaster Audigy soundcards. What does it do and is it required?
Important: Some malware camouflages itself as MIDIDef.exe, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the MIDIDef.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
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MIDIDef scanner
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