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Windows 7: C partition contents size does not agree - chkdisk does not fix

23 Dec 2011   #1

Windows 7 Home Premium
C partition contents size does not agree - chkdisk does not fix

I have a huge discrepancy in the size of the contents of my C drive partition as measured in my computer vs drive properties.

In my computer, drive is listed as 55.1 GB free of 174 GB - this should mean contents occupies 118.9 GB. However, when I explore drive, select entire contents (hidden files & folders are set to display) > right click > properties > result says size 85.8 GB, size on disk 86.3 GB.

I would not be worried about a small discrepancy, but 33 GB? That doesn't seem right. Last night the discrepancy was over 50 GB. Last night I scheduled a chkdisk run for startup this AM, and I do not know the whether or not this remedied part of it, or if just restarting the computer did. But this is still huge.

I just exposed protected OS files as well, and this increased contents in drive properties to 106 GB, but even this is still a 13 GB discrepancy.

Is this normal? Is there anything to do about it? What is going on?

Thanks for any help.

My System SpecsSystem Spec
23 Dec 2011   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

CCleaner - Optimization and Cleaning - Free Download

Run it one or two times , and see if the situation is changed. BTW, do you have the Windows.old folder there in your C drive ?
My System SpecsSystem Spec
23 Dec 2011   #3


Do you have system restore enabled?

When you examine the files and folders in Explorer are you including hidden & system files/folders?

I suspect the difference is accounted for in the above two sentences...
My System SpecsSystem Spec

23 Dec 2011   #4

64-bit Windows 10 Pro

Hello David,

In addition, the tutorial below may be able to help you find out what may be using your hard drive space.

Hard Disk Space - Free Up and Recover

Hope this helps,
My System SpecsSystem Spec
23 Dec 2011   #5
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8

The way you added up your files is definitely not right. You have to do 2 things:

1. Run WinDirStat - that will tell you the total of system files and user files, but not the shadows

2. For the shadows (restore points), open an elevated command prompt and run this command: vssadmin list shadowstorage. That will tell you under Allocated how much space is already taken for restore points.

PS: Just saw that as usual Shawn has it all covered, LOL
My System SpecsSystem Spec
24 Dec 2011   #6

Windows 7 Home Premium

Good suggestions - thanks
My System SpecsSystem Spec
24 Dec 2011   #7

64-bit Windows 10 Pro

You're welcome David. I'm glad that we could help.
My System SpecsSystem Spec

 C partition contents size does not agree - chkdisk does not fix

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