Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: DIsk space usage - different figures reported

24 Sep 2012   #1
DarkStar GT

Windows Home Premium (64)
DIsk space usage - different figures reported

If I right-click my C:\ drive in Explorer and select Properties, the disk usage is reported as 39.4 GB.

If I select all the top-level folders, right-click and select Properties the Size on Disk is reported as 29.0 GB.

If I show Hidden Folders/Files and the Protected OS files, then select everything, the Size on Disk is reported as 37.0 GB.

6 GB of this difference is down to hiberfil.sys

Can anyone clarify what accounts for the remaining differences?
39.4 - 37.0 = 2.4 GB
37.0 - 29.0 - 6.0 = 1 GB

My System SpecsSystem Spec
24 Sep 2012   #2

Windows 10 Pro (x64)

Files Explorer cannot see. Or has access to see.
My System SpecsSystem Spec
26 Sep 2012   #3
DarkStar GT

Windows Home Premium (64)

Thank you.

I tracked down some more info - there was over 6 GB of data in the System Volume Info folder. Not accessible by Explorer (for good reason) but I could see the contents in an Acronis True Image back-up.

Those folders/files look like System Restore Points - that would explain it as recently I did some big installs - a .NET update, MS Office, etc. In due course, those checkpoints will drop off the list and the space used will reduce.

So, total disk space used (right-click the C:\ drive and select Properties)
= size of folders /files in Explorer (including the hidden ones)
+ the System Volume Information folder size (configurable in System Properties > System Protection > Configure)
My System SpecsSystem Spec


 DIsk space usage - different figures reported

Thread Tools

Similar help and support threads
Thread Forum
Disk space usage for system restore constantly resetting to 50% of HD It just keeps going back to this setting. I know about it and regularly adjust now, so it's more of just an annoyance now. But it caused me to reinstall windows twice before even thinking of this problem. I'd really appreciate any advice, and sorry if this isn't...
Performance & Maintenance
disk space usage slider
hi, i want to know how to use the maximum disk space slider in the system restore page. can anyone help? thank you
Backup and Restore
System Protection - Change Disk Space Usage
How to Change Maximum Disk Space Used by System Protection and System Images in Windows 7 By default, Windows 7 will allocate up to 10% of your total C: drive/partition size to be used by system protection to store system restore points in this allocated disk space. This allocated space will no...
Windows Backup - reduce its disk space usage?
Windows Backup Program - how can I cope with its high Disk Space usage (because it creates too frequently new Backu-up sets)? On my new Windows 7 Ultimate PC (64 bit). I need to backup my C Partition (approximately 23 GB in the system Image created by Windows Backup) , most of the data files of...
Backup and Restore
Disk space usage discrepancy
I just installed Win 7 Ultimate on my UMPC, Viliv X70. I am surprised at how well it runs (using optimized for best performance setting without aero) on my fairly slow umpc (1.3ghz atom, 1 gb ram, 16gb ssd). Even the diskspace requirement surprised me. But the disk space usage is also what i...
General Discussion
Offline Files - Manage Disk Space Usage
How to Manage the Offline Files Disk Space Usage in Windows 7 and Windows 8 The size and number of your offline files determine how much hard disk space your offline files use. This will show you how to manage your offline files so that you can find out how much hard disk space they are...

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 08:35.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App