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#1
See if another app like Tree Size Free can ID it..........at least provide a name for it.
I can't read the text in the image you uploaded.
The text says "unknown". Click on the image a couple of times to enlarge the text, ignatzatsonic
Unknown file in C:\ Drive - Album on Imgur
I hope the text is now visible
I see a file with an unknown name occupying about 21 percent of the drive.
Not much help without a name.
It appears to be in the root of C.
Looks like a file, not a directory?
Try another app like Tree Size Free.
Imgur: The magic of the Internet
Result with TreeSize free
Not sure that 19 gigs is a file at all.
Can you post a screen shot of Windows Disk Management?