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: Huge size difference between C drive and the its folders.

18 Oct 2015   #1
AlexZ

Windows 7 Ultimate x64
 
 
Huge size difference between C drive and the its folders.

Hello,

My name is Alex and I bought a powerful laptop 2 years ago, but with a small C drive. I've later bought a second inside HDD, but now I struggle tu keep at least 10 GB free on C drive so the computer can run smoothly.

My problem is that when I right click on the C drive there is about 5GB free, but when I select all the folders from the inside of C drive, it says that there are only about 75GB used.

So please tell me what to do, or what's the issue with this huge difference.

Alex




Attached Thumbnails
Huge size difference between C drive and the its folders.-untitled-2.jpg   Huge size difference between C drive and the its folders.-untitled-1.jpg  
My System SpecsSystem Spec
.
18 Oct 2015   #2
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

Use WizTree free to see what it shows.
They have a Portable Zip available, no install needed.

Antibody Software - WizTree finds the files and folders using the most disk space on your hard drive
My System SpecsSystem Spec
18 Oct 2015   #3
dayzzy

windows 10
 
 

This happened to my external hd. I used smadav antivirus to run a scan on the hd and it eventually 'unhid' files and folder i didnt even know existed( this works if your hd is affected with virus). You also can try this, activate 'show hidden files' in ur pc settings (this should work if your hd is not virus-affected)
My System SpecsSystem Spec
.

19 Oct 2015   #4
AlexZ

Windows 7 Ultimate x64
 
 

Thank you DavidE,
I used WizTree and this is my result. Please tell me how I can, or if it is safe to delete the large files from the system volume information. Because I have to do something to let the C drive breathe. I installed all the big programs that I use on D drive but it is still not enough.

Thank you dayzzy,
I scaned the C drive and there really was one infected file, which I deleted.


Attached Thumbnails
Huge size difference between C drive and the its folders.-untitled-1.jpg  
My System SpecsSystem Spec
19 Oct 2015   #5
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

It might be your Restore Points.
You might need to delete some Restore Points and lower the max used space for System Restore.

What Anti-Virus do you use ?

Here a couple of tutorials that should help:
System Protection Restore Points - Delete
System Protection - Change Disk Space Usage
My System SpecsSystem Spec
19 Oct 2015   #6
Callender

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

There is no way that adding up the size of the folders equals used space as shown by Explorer or other utilities.

Computing the size of a directory is more than just adding file sizes

Then what about ADS? (Alternate Data Streams) - you don't get to see those either.

Check out the differences for the same downloaded file using different utilities:

PowerTool shows 46.67Mb plus a 26b ADS
Huge size difference between C drive and the its folders.-ads-1.jpg
Streams Manager shows a 32b ADS
Huge size difference between C drive and the its folders.-ads-2.jpg
WizTree rounds it up to 46.7MB
Huge size difference between C drive and the its folders.-ads-3.jpg
Explorer shows 47.778MB
Huge size difference between C drive and the its folders.-ads-4.jpg
So which one do you choose when adding sizes?

Note: ADS streams can be pretty large.
Huge size difference between C drive and the its folders.-ads-5.jpg
Now look at the same file using WizTree and it reports 0 bytes instead of 2.41GB
Huge size difference between C drive and the its folders.-ads-6.jpg


My System SpecsSystem Spec
19 Oct 2015   #7
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

From post #6
Quote:

There is no way that adding up the size of the folders equals used space as shown by Explorer or other utilities.
Very well said and explained. Not allowed to rep you.
My System SpecsSystem Spec
19 Oct 2015   #8
AlexZ

Windows 7 Ultimate x64
 
 

Thank you DavidE,
you were extremely helpful! Now my C drive has space to breathe. The slider was set to 20% and I moved it to 10% so I saved more than 10 GB. Not bad!
My System SpecsSystem Spec
19 Oct 2015   #9
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

What anti virus program are you using Alex?
My System SpecsSystem Spec
20 Oct 2015   #10
AlexZ

Windows 7 Ultimate x64
 
 

Yeah, sure. I use Avast Antivirus.
My System SpecsSystem Spec
Reply

 Huge size difference between C drive and the its folders.




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
W7x64 SP1 PRO OS size/footprint is huge (hidden files/data)
As the title says. I'm a fairly advanced computer/hardware user. Advanced enough to get myself into a whole lot of trouble if I'm not careful LOL. This is a first for me. I'm trying to build a quad-boot machine (don't ask) (W8.1/XP - HDD-0 & W7/CentOS HDD-2) Putting 8.1 & XP on HDD-0 was easy...
General Discussion
Win 7 Ultimate scheduled Restore size is getting huge!
Hello Friends, This query is concerning how Win 7 Ultimate Scheduled Backup works. These are my needs: Often in the past, Win7 has become unstable in some way, such that different pgms including Windows Explorer, and other system tools become corrupt. I decide to re-install Win 7 Ultimate...
Backup and Restore
Windows folder size is huge and taking over my hard drive - by design?
I've been working on a thorough system cleanup in an attempt to get my hard drive usage down to a minimum. The Windows folder (C: Windows) has been by biggest obstacle. I couldn't believe it was taking up 22GB of space even after running both CCleaner and Windows Disk Cleanup. I've been reading and...
Performance & Maintenance
Game lag, FPS issues, huge difference transitioning from XP - Windows7
Hi all, I recently formatted my computer running windows XP & installed Windows 7 - 64 bit. (actually, it's been about a week). I've noticed that games have been super laggy and the FPS could drop to 1 FPS from time to time. It has made it extremely difficult for me to play Starcraft II and...
Gaming
All of a sudden my IE text size is huge!?
I had a BSOD earlier when i tried to load a facebook favourite, anyways i rebooted and now all my IE8 browser text is really big! my deskop icons and other programs are fine, as they were but the text being displayed on webpages is like almost double its regular size, has anyone seen this b4 or...
Browsers & Mail
2 Huge Folders
Hi All! OS: Windows 7 Home Premium with SP1 RC I have 2 folders on my System drive (over 10000 entries and nearly 1GB) and I don't know what they are. 45097da387c9cd80642135397174 548702c0e55370e20af2680d84
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 21:40.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App