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: New Win7 Installation Too large

12 Mar 2013   #1
Lady Fitzgerald

New Win7 Installation Too large

I just installed Win7 Ultimate on a new build. The OS is installed on a 128GB Samsung 840 Pro. I haven't installed any drivers or programs yet I'm showing only 56.0GB free out of 119GB. What's eating up all the space?

My System SpecsSystem Spec
12 Mar 2013   #2

64-bit Windows 10 Pro

Hello Lady F,

Was this a clean install or an upgrade install?

If upgrade, you may have the Windows.old folder taking up a large chunk of space that can be deleted.
Windows.old Folder - Delete
Next, starting at OPTION ONE in the tutorial below with WinDirStat, this may help ID what is using up the HDD space for now.
Hard Disk Space - Free Up and Recover

Please go ahead and post back with a screenshot showing the full layout of your Disk Management window to see if something may be off with the partitions/volumes.
Disk Management - Post a Screen Capture Image
Hope this helps for now. :)
My System SpecsSystem Spec
12 Mar 2013   #3
Lady Fitzgerald


It's a new build so it's a new installation. Nothing had been put on the SSD prior to the installation.
My System SpecsSystem Spec

12 Mar 2013   #4

64-bit Windows 10 Pro

Ok, so far so good. Be sure to check all items in the tutorial above to see if any may be the hog.

Let's go ahead and see that screenshot if you like to see if you may have some "unallocated" space floating around on the hard drive not in use.
My System SpecsSystem Spec
12 Mar 2013   #5

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit

Did you Turn off Hibernation off

Open elevated Command Prompt and type in this command to turn it off

 powercfg -h off
Disabled System Protection

Open the Start Menu
Right click Computer
Click Properties
Click System protection (it's on the left side)
Select C:
Click the Configure button
Click "Turn off system protection" or adjust slider to desired size.

Turn off indexing

Open the Start Menu
Click Computer
Right click C: drive > properties and uncheck drive indexing
Click apply (ignore all when comes up)
Once done press the start button and type "Indexing options" into the search and enter, a window will pop up and you can adjust Indexing for quick search exactly how you like.

Disable Disk Defrag

To check if TRIM is enabled

Click on , in the search bar type “cmd”. The cmd program should show at the top of the window under programs (1). Right-click on “cmd” and click on “run as administrator”. Type the following string: “fsutil behavior query DisableDeleteNotify” and hit <ENTER>.

Note   Note
DisableDeleteNotify=0 TRIM is Enabled
DisableDeleteNotify=1 TRIM is Disabled

For better performance

1. Hit the Winkey + ‘R’ to get you to the ‘Run’ menu.

2. Type ‘Regedit’.

3. Select the file path:

4. Right Click and modify Start from 3 to 0 and Restart. Change BIOS SATA configuration to AHCI
My System SpecsSystem Spec
12 Mar 2013   #6

Windows 10 Pro x64

Post the screen shot of disk management. :)
My System SpecsSystem Spec
12 Mar 2013   #7
Lady Fitzgerald


@ VistaKing. You may have hit the head on the nail (or something like that); I've only got a miniscule 32GB of RAM. It's late and my eyes are crossing so I'm hitting the rack (poor rack). I printed out all of your directions and I will check things out tomorrow.
My System SpecsSystem Spec
12 Mar 2013   #8
Microsoft MVP


When set to System Managed the Paging File will make itself the same size as the RAM. Our SSD expert Wolfgang recommends in such a case setting Paging File size to 2gb to save space without any performance problem since it will rarely be referenced anyway with that much RAM. Change Virtual Memory Paging File

I would not personally want to turn off Hibernation or Indexing since these modern features are perfected in Win7 and I rely upon them. But if you don't that can be another option.

I would also install WinDirStat and study it's drive map.
My System SpecsSystem Spec
12 Mar 2013   #9
Lady Fitzgerald


We have a winner. The paging file was the culprit. The not so little bugger was hogging 32.7GB of space! I pared it down to 800MB and I'm now using only 33.4GB (including some drivers I've added).

I'm keeping hibernation for now. I may need it for unattended shutdown by my UPS to avoid losing any work in progress. I won't know for sure until I set it up and test it.

Haven't done it yet but I'm going to disable system protection. I haven't had much luck with system restore and would prefer to rely on frequent imaging since I do that anyway using Macrium Reflect.

I would prefer to keep drive indexing. It comes in handy when I lose a file (ADHD and old age suck) or can't remember how to get to a certain function.

I already had defrag shut off.

I checked and TRIM is enabled.

I enabled ACHI before installing the OS.

Once I install all of my programs, since I should still have more than enough headroom I may consider increasing the amount of overprovisioning (then again, I may not).

I've tried WinDirStat and couldn't make any sense of it. Being color blind doesn't help any.

Thanks for your help, you all!
My System SpecsSystem Spec
12 Mar 2013   #10

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit

If you would like you could do the command below. That will shrink your hibernation size not turn it completely off.

powercfg -h -size 50
My System SpecsSystem Spec

 New Win7 Installation Too large

Thread Tools

Similar help and support threads
Thread Forum
Why is my OS installation so large relative to sum of files?
I performed a fresh install of Windows 7 on a SSD. Added a bunch of apps, and moved some of the user folders onto a data drive. Used space on the SSD shows as 65GB Sum of files and folders (with operating system files unhidden): 51.5GB 1. What accounts for this difference? It's not the...
Installation & Setup
6 gig ISO file XFer from win7 to external drive says it's too large?
I am trying to use a 500 gig sata drive for storage transferring data through a USB to hard disk tool/cable. The tool is a Vantec USB to IDE/SATA adapter. Vantec ? Vantec SATA/IDE to USB 2.0 Adapter - CB-ISATAU2 - 2.5"/3.5"/5.25" SATA/IDE to USB 2.0 Adapter I bought it to be able to have...
Hardware & Devices
New installation of Windows 7 with large dynamic disk
i currently have windows 7 installed on a 80 gig sata drive. i also have 2 x 1.5TB drives and 1 x 3 TB drives set up as one large dynamic disk (they are combined and show up in windows explorer as D:\ with 5.45TB) how do i go about re-installing windows on the 80 gb drive (or possibly a new...
Installation & Setup
Problem sharing large files (Win7 <-> Win7)
Hi There, I got 2 PCs... A: Desktop PC, Windows 7 Professional 64-bit B: Media PC (connected to TV), Windows 7 Professional 32-bit I'm trying to share the files on my Dektop PC so i can access them from the Media PC. As it is a Media PC i'm sharing videos. I enabled sharing on the Folders...
Network & Sharing
How large will WIN7 be after some ServicePack?
I mean the final WIN7 SP3 or WIN7 SP4 (x64) Will 20GB disc space be enough?
General Discussion

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 00:39.
Twitter Facebook