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I am on Windows 10 and have a ~640GB (base 10) Hard drive with 2 main partitions on it C:\ and D:\ and also a recovery and system partition as can be seen here

[diskmanager][1].

When I use cmd to determine the size of all files on C:\ (including hidden and operating system protected files) I get this

enter image description here

I use the command dir /a/s, on C:\ as can be seen.

But when I select all files and folders in C:\ including hidden and operating system protected files and folders, I get this result size:79.717.573.909 bytes. As you can see there is a big discrepancy between the two.

I figure that there must be some files and folders that I didn't select and witch are compressed and thus have a bigger actual size then their footprint on the disk (size on disk), since, as you can see, disk-manager gives me a lesser capacity for C: partition then what cmd says. If someone could explain whats going on here I would be greatfull?

I hope I've been clear enough,

DavidPostill
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adoion
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1 Answers1

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Are you right clicking on Command Prompt and choosing to run it as Administrator? If not, I bet you're missing some shadow files.

certain types of files don’t appear in Windows Explorer. Files in Windows’ aptly named “shadow storage,” also known as “shadow copies,” don’t appear here. The shadow storage contains System Restore points and previous versions of files for the Previous Versions feature in Windows Explorer. Source

DustinRS
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