It’s not absolutely clear which product this file is part of and who is its author. Sometimes files like this can be dangerous. Make sure defender21.exe is a safe file by scanning your computer for viruses.
Defender21.exe is usually located in the C: sub-folder and its usual size is 36,864 bytes.
Important: malware can mask itself as defender21.exe.
The defender21.exe process is safe, and you can safely disable it. Some other processes use the same file name.
Common path(s): subfolder in C:Filesize(s): 36,864 bytes
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