Unusual file name extension and size

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  1. ventito
    Posts : 4
    windows 10 pro
       New #1

    Unusual file name extension and size


    I have a hidden file that is 607GB on a 931GB Hard Disk with the extension (.DErQc). What is this file doing?
    Regards, ventito
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  3. bro67
    Posts : 9,790
    Mac OS Catalina
       New #2

    Helps to post the full filename and folder that it is in.
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  4. Steve C
    Posts : 7,906
    Windows 11 Pro 64 bit
       New #3

    I wouldn't want that! Do a virus scan and report what the file properties says.
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  6. eLPuSHeR
    Posts : 2,935
    Windows 10 Home x64
       New #4

    I really doubt a virus is 607 GB in size.
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  7. bro67
    Posts : 9,790
    Mac OS Catalina
       New #5

    Steve C said:
    I wouldn't want that! Do a virus scan and report what the file properties says.
    Again, what is the filename and extension, along with what folder?
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  8. bro67
    Posts : 9,790
    Mac OS Catalina
       New #6

    eLPuSHeR said:
    I really doubt a virus is 607 GB in size.
    The same here, unless it is some type of ransomware.
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  9. ventito
    Posts : 4
    windows 10 pro
    Thread Starter
       New #7

    More Info


    The file name was unintelligble and over 150 characters long.
    I checked a few file extension sites and they had no idea.
    I thought it might have been a hidden file with search info as I have searching set to file content also.
    I have deleted it and recovered the 600+GB.
    It has been dormant since.
    It was in the root of drive D.
    Drive C is my SSD boot drive and D the data Disk
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  10. moreofir
    Posts : 12
    windows 10
       New #8

    maybe its an image of a partition or a backup file.
    the file size is very big, but i dont think its belong to any of the software in your computer
    i think its a backup
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  12. bro67
    Posts : 9,790
    Mac OS Catalina
       New #9

    moreofir said:
    maybe its an image of a partition or a backup file.
    the file size is very big, but i dont think its belong to any of the software in your computer
    i think its a backup
    I am thinking the same thing.
      My Computer
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  13. ventito
    Posts : 4
    windows 10 pro
    Thread Starter
       New #10

    No Backup


    I haven't done a backup.
      My Computer
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