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Windows 7: Why is my OS installation so large relative to sum of files?

17 Dec 2014   #1
colt

Windows 7 Home Premium 64-bit
 
 
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 hibernation file or paging file because I can see those.
2. I can see hiberfil.sys is taking up 12.5GB. If I don't want to use hibernation, can I get rid of this?


My System SpecsSystem Spec
.
17 Dec 2014   #2
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

65 GB is way too much.

Yes you can turn off the hiber file, how much is the page file ? How much is system restore taking up ?

It should only be taking up 20 GBs, depending on page file, hiberfile, system restore etc.

Was this a new ssd ? A clean install to a formatted partition or un allocated space ?

Post a shot of disk management if you like, fully expanded.
My System SpecsSystem Spec
17 Dec 2014   #3
colt

Windows 7 Home Premium 64-bit
 
 

Quote   Quote: Originally Posted by AddRAM View Post
65 GB is way too much.

Yes you can turn off the hiber file, how much is the page file ? How much is system restore taking up ?

It should only be taking up 20 GBs, depending on page file, hiberfile, system restore etc.

Was this a new ssd ? A clean install to a formatted partition or un allocated space ?

Post a shot of disk management if you like, fully expanded.
Yes, new SSD. Clean install to formatted NTFS partition that takes up most of the SSD (have a small partition for Linux).

hiberfil.sys = 12.5 GB
pagefile.sys = 16.6 GB
system restore looks like it's currently taking up 15 GB (which I suppose answers my original question as to the difference between sum of files/folders and total disk space occupied)

I have plenty of space on this OS partition, it's 200 GB. Just want to make sure it's optimized for performance, as Windows started switching to the basic color scheme, which is very odd because I'm barely running anything. On an immediately prior build on this system (with OS partition on HDD), I could run many apps simultaneously along with dozens of browser windows before having Windows switch to basic color scheme and disable Aero.

Disk space in use on OS partition:


Non-protected OS files/folders:


Including protected OS files/folders:


System restore disk usage:
My System SpecsSystem Spec
.

17 Dec 2014   #4
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Turn off the page file, you don`t need it.
Turn off the hiberfile if you don`t use it.
Turn off system restore if you don`t want to use it, make disk images instead.

Re calculate the space used.

With 20 GB for windows and everything else you list, it comes up right.
My System SpecsSystem Spec
17 Dec 2014   #5
colt

Windows 7 Home Premium 64-bit
 
 

Quote   Quote: Originally Posted by AddRAM View Post
With 20 GB for windows and everything else you list, it comes up right.
Yep, it sure does. Thanks for helping me figure out what was going on there.

Quote   Quote: Originally Posted by AddRAM View Post
Turn off the page file, you don`t need it.
Turn off the hiberfile if you don`t use it.
Turn off system restore if you don`t want to use it, make disk images instead.

Re calculate the space used.
I'm not worried about the space, as I have plenty of it on the OS partition. More interested in performance.

When I noticed Windows was turning off Aero and switching to basic color scheme, I was very surprised, so I started looking around and that's when I noticed how massive the OS had become. But now I get it.

Still not sure why performance dropped so much temporarily. I wasn't running much and have 16GB of RAM, with >10gb of free ram. So there was some other resource constraint, just not sure what it was.
My System SpecsSystem Spec
17 Dec 2014   #6
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

System protection at 50% is a big space eater.
I use Restore Points but keep settings a 5%
My System SpecsSystem Spec
17 Dec 2014   #7
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Ya, I thought that was extremely high too.
My System SpecsSystem Spec
17 Dec 2014   #8
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

On my system 5% give me 15 Restore Points. Two made be me and the rest made by the system. My thought are that should be enough restore point.
They can take me back about one month if need be.

Their should be no problem having Restore Points and Backups. One does not replace the other.
My System SpecsSystem Spec
17 Dec 2014   #9
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

1. most people do not need the hiberfile. To turn it off use this command: powercfg -h off

2. do not delete the pagefile all together. That may give you problems. But 1 or 2GB is enough

3. I would set the shadowstorage at 5GB. That gives you space for appr. 7 current restore points (it deletes the oldest when the space is full).
My System SpecsSystem Spec
17 Dec 2014   #10
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I do agree with Wolfgang.
Hibernation is pretty much useless with todays fast booting system. Also todays systems like a fresh boot to start from a fresh start.

Some systems and programs will not work properly if pagefile is turned off completely.
I have tried it both ways, on and off. Now I just leave a little pagefile and things work just fine.

If I remember correctly pagefile is also needed for memory dumps just in case you ever do get a BSOD.

At the present time my shadowstorage is at 6 gb. 5%.
My System SpecsSystem Spec
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 Why is my OS installation so large relative to sum of files?




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