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Windows 7: Missing Hard Drive space?

12 Jul 2011   #1
PwnFrnzy

Windows 7 Home Premium 64-bit SP1
 
 
Missing Hard Drive space?

I seems that I'm missing 46GB of space on my hard drive, any idea what is going on, or if one of there programs are notorious for displaying incorrect information?




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12 Jul 2011   #2
richc46

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install
 
 

Most likely its restore points.
But there can be other causes, just as in Vista.
Hard Disk Space - Free Up and Recover
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12 Jul 2011   #3
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

That's the normal size for a 1TB drive. What you're seeing is the difference between binary (240) and decimal counting (1012 ).

HD Manufacturers: 1000 Bits = 1 Byte and 1000 Bytes = 1MB and 1000 MB = 1GB and 1000GB = 1TB
1000 X 1000 X 1000 = 1,000,000,000,000 or 1TB

Windows: 1024MB = 1GB

1,000,000,000,000 / 1024 / 1024 /1024 = 939.3225746154785

(I did that in my head, so it might be off in the last decimal place.) <= Big Fat Lie

The other ~.9 etc is the 100MB System Reserved space at the beginning of the drive.

Terabyte - Wikipedia, the free encyclopedia
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13 Jul 2011   #4
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

Check out this excellent tutorial from Brink: Hard Disk Space - Free Up and Recover

On today's large hard drives, shadow storage at 10-15% can easily eat up 10-15GB of a 1TB drive.

Add that to the way drive space is calculated as explained by profdlp, it's not hard to see where 46GB went "missing".
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13 Jul 2011   #5
essenbe
Microsoft MVP

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

profdlp, 931.3225....
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10 Sep 2012   #6
kurteb

MS Windows 7 Home Premium 64-bit SP1
 
 

mine turned a 1000gb into 932gb
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 Missing Hard Drive space?




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