The amount of computer storage space on devices, such as hard drive, floppy or USB flash drive.

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190
votes
19answers
66k views

How can I visualize the file system usage on Windows?

How can I visualize which folders and files are taking up all of the space on my hard drive? I'm getting some conflicting reports on the size of hard drive contents. Namely what is and isn't there ...
162
votes
9answers
19k views

Why does emptying disk space speed up computers?

I have been looking at a bunch of videos and now understand a bit better how computers work. I better understand what RAM is, volatile and non-volatile memory, and the process of swapping. I also ...
135
votes
10answers
74k views

Why does the /winsxs folder grow so large, and can it be made smaller?

A Vista virtual machine I use only has a 10 GB virtual hard disk -- and I'm worried about it running out of space over time. I used TreeSize to check for the culprits.. And the primary culprit is ...
74
votes
5answers
12k views

Why do SSDs have weird sizes?

Why do SSDs have sizes like 240 GB or 120 GB rather than the normal 256 GB or 512 GB? Those numbers make much more sense than 240 or 120.
72
votes
17answers
78k views

Linux utility for finding the largest files/directories [closed]

I'm looking for a program to show me which files/directories occupy the most space, something like: 74% music \- 60% music1 \- 14% music2 12% code 13% other I know that it's possible in KDE3, but ...
68
votes
8answers
52k views

Is it safe to delete from C:\Windows\Installer?

I've been looking on an XP machine what is using all that diskspace, and it turns out C:\Windows\Installer is high up there on the list of directories that use the most diskspace. It seems to contain ...
41
votes
3answers
23k views

How to analyse disk usage in command line linux?

du and df are nice, but I don't know how to filter the data they provide the way I do with SequoiaView. I would like to know which are the largest folders and the largest files in a glance.
37
votes
8answers
53k views

How can I to free up drive space from the Windows installer folder without killing Windows 8.1?

On my SSD machine, the C:\Windows\Installer folder is massive and takes up about 15% of my total disk space. Is there a way to clean up that folder without killing Windows 8.1? The way Microsoft ...
33
votes
3answers
4k views

Chrome Using 7.6GB of Disk Space. Has a File 5.9GB that hasn't been Accessed for 92 Days

I just ran WinDirStat and noticed that Google Chrome is using tons of disk space. One file in particular is 5.9GB and hasn't been modified since July 11, 2013, its name is just: 00000001 What is this ...
31
votes
5answers
51k views

How to determine available free space on Ubuntu?

I am in a situation where I am getting an error when I try to save a file to my Ubuntu server via ssh. It says there isn't any available space left. I don't know how that can be true. What should I do ...
29
votes
7answers
62k views

Windows 8 disk space usage vs Windows 7

The official Microsoft Windows 8 (64 bit) disk space requirements are the same as Windows 7: 20 GB. In actual practice, how does Win8's disk space usage compare to Win7's? Specifically, how does disk ...
26
votes
12answers
9k views

Reclaiming disk space on Windows [closed]

A lot of disk space is taken up by a default Windows installation in various temporary and backup data that may never get cleaned up on its own. Eventually you realize that the large multi hundred ...
23
votes
2answers
12k views

Why did defragmenting C drive increase my free disk space by 10 GB?

I used Defraggler to defragment free space on my 100 GB C:\ drive which was 85 GB full. After defragmentation, the drive showed only 75 GB full. How did 10 GB  of free space ...
19
votes
3answers
23k views

Is there a way for Windows 7 to show remaining disk space in the status bar?

This is really driving me nuts. I do a lot of moving media files to and from USB drives, and I am constantly looking to the status bar to see how much remaining space I have on a drive. It's quick, ...
19
votes
4answers
11k views

Almost half of disk space unaccounted for on Windows 7 computer

I'm trying to determine what's eating almost half of disk on my Windows 7 Lenovo laptop but haven't been able to determine what. I read some of the answers on this site but none of the causes seems ...
17
votes
5answers
34k views

Windows Disk Cleanup: “Compress old files” option

Should I check "compress old files" option while performing disk cleanup on Windows XP? What are the pros and cons? Likewise, there is another option in Local Disk Properties window: "Compress drive ...
15
votes
7answers
37k views

What is a safe way to move AppData\Local to a different drive?

I have a 60GB SSD as my C: where I have my Windows and other essential program installations. I also have a huge non-SSD D:. I repeatedly find myself short of disk space on C:. The main culprits are ...
15
votes
11answers
13k views

Hibernate is disabled, hiberfil.sys gets recreated at each boot

I have Windows 7 running on a small (40GB) partition, with 4GB ram. This means that the hiberfil.sys file created by Hibernate takes up a significant portion of the available diskspace. I would like ...
14
votes
6answers
53k views

How to reduce the size (disk space) of Windows 8

This question is about what things I can do to reduce the size that Windows 8 uses. Background example: At present, and with only one program installed (MS Access 2007), I have used about 15GB of my ...
13
votes
5answers
9k views

Good program to visualize file system usage on Mac?

Based on this question, I would like to know if there are any good programs to visualize file system usage on OS X? I used to have SpaceMonger when I was using a PC and would love to find some ...
13
votes
4answers
13k views

What's using up my disk space?

My Vista 64 installation has drive C, a 150 GB hard drive. I also has a 1.5 TB drive D. My C drive has 12.3 GB free. I don't know what's using up all the space. There's almost 83 GB unaccounted ...
13
votes
2answers
33k views

Can I delete files from C:\WINDOWS\SoftwareDistribution\Download?

I need to free space on Windows XP SP3. Q1) What system folders can be safely delete in case I don't need to have restore points etc? Q2) Can I delete content from ...
12
votes
7answers
22k views

Unexpected free disk space decrease?

On my Windows 7 PC, the free disk space has gone down by 1GB even though I haven't downloaded or installed any new files and I haven't downloaded any updates or other things? What could have made the ...
12
votes
5answers
17k views

How can I disable the low disk space warning on a single drive in Windows 8?

Id like to disable the low disk space warning, ideally for a single drive in Windows 8. My gut feeling is that is it will be an all or nothing change. Any ideas?
10
votes
8answers
37k views

Is there a Windows command-line utility to list largest files exceeding specific size in sub-directories?

Would like to be able to find full paths of files in a directory tree that exceed a specific size (say 10MB). Currently aware of Microsoft's Diruse (part of Windows XP Service Pack 2 Support Tools) ...
10
votes
2answers
6k views

Stop Google Chrome hoarding previous update versions?

I use Google Chrome on a Windows 7 tablet with limited SSD space, which fills up quickly. One irritating cause of lost disk space that I've established is, Google Chrome not only auto-updates ...
9
votes
8answers
33k views

My C drive is 20GB large and almost full, how do I regain space?

I have Windows 7 Ultimate installed on my PC. The C drive has a capacity of 20 GB and I have only a few applications installed. Still, the drive shows as being almost full up to its capacity and keeps ...
9
votes
3answers
12k views

best Graphical disk space explorer utility for Ubuntu?

what is the best disk space explorer utility for linux? I want to see folder wise size graphically, which folder has taken how much disk space.
9
votes
1answer
1k views

Disk Management and Windows Explorer show different allocted sizes

I shrinked 50GB from my main bootcamp NTFS partition. After a reboot my windows explorer now shows that drive C's total size is 90GB, but the Disk Management tool in windows (and EaseUS Partition ...
8
votes
7answers
9k views

Hidden files in Disk Usage Analyzer

How do I get Ubuntu's "Disk Usage Analyzer" to show me the hidden files? It tells me my home dir uses 3GB, but only accounts for 525MB (the results of du -shc *). Can I get it to show me the other ...
8
votes
2answers
1k views

Virtual Machine optimizers [closed]

I have read a discussion about musthave Windows software. User esabine addend a link to Scott Hanselman's tools list. One of the tools Scott was writing about was an optimizer tool for VM’s. - ...
8
votes
6answers
533 views

Need an app that tells about file & folder sizes

I need an app that tells about file & folder sizes, like what is the biggest file and/or folder on my hard disk, sort this detail from biggest file and/or folder to the smallest & vice versa, ...
8
votes
5answers
4k views

How can I reduce the size of Windows 7, and its CPU and memory usage?

My Windows 7 setup uses around 16GB while Windows XP only needs around 4GB hard disk space. Seems weird. I use Windows only for gaming so I don't need a lot of stuff they have to offer. What is the ...
8
votes
1answer
17k views

slim down disk space usage windows 7

How can I reduce the amount of hard drive space Windows 7 uses? I've got my Win7 cramped into a 10GB virtual machine, and with Office installed, I’m running out of space. The short answer 'use a ...
8
votes
2answers
5k views

Windows 7 : Disk space : windirstat shows 88 GBs used : Windows shows 143 GBs used

The total disk space shown by the "scanner" program is 232GB and the innermost circle shows used space is 143GB. When I check with WinDirStat the total files used are 88GB. Does this mean that the ...
8
votes
1answer
548 views

Why is docker reporting 100% disk usage on a fresh ubuntu image?

I am no longer able to use docker or effectively run new images -- it is reporting that I have 100% disk usage. Here, you can see I am launching a pristine copy of ubuntu, and yet it is telling me I ...
7
votes
5answers
3k views

Whatever happened to compressed read/write filesystems?

Back in the 90s, my home computer was an Acorn Archimedes. It had on it a piece of software called ArcFS, which allowed you to create compressed archives, a bit like zip files. Unlike zip files, they ...
7
votes
8answers
21k views

How to find out the top space-consuming directories or files?

My disk is running out of space: $ df -h Filesystem Size Used Avail Use% Mounted on ... /dev/sda7 803G 715G 48G 95% /home I'd like to go through the whole home directory and find ...
7
votes
3answers
551 views

I emptied my hard drive, but it still has 9GB on it

I have a secondary disk drive 465GB as reported by Windows explorer. I'm going to install a secondary O/S on it, so I moved EVERYTHING on it to another drive. Windows explorer STILL reports 9.27GB ...
7
votes
1answer
727 views

Get Python to raise MemoryError instead of eating all my disk space

If I run a Python program with a memory leak, I would normally expect the program to eventually die with MemoryError. But instead, what happens is that all the virtual memory is used until my disk ...
7
votes
4answers
5k views

Linux filesystem; difference in calculating size using df & du

When I run df it shows the root device is full. Filesystem Size Used Avail Use% Mounted on /dev/sda1 9.9G 9.4G 0 100% / I looked at the inode usage and there is pretty ...
7
votes
5answers
20k views

What if I checked the box “Compress this drive to save disk space” on an SSD?

I was wondering how it would effect an SSD if this was checked: I was just curious whether it would save my SSD disk space?
7
votes
2answers
5k views

Compiling the Linux kernel, how much size is needed?

I have downloaded the newest most stable Linux kernel, 2.6.33.2. I thought I would test this using VirtualBox. So I create a dynamically sized harddisk of 4 GB. And installed CentOS 5.3 with just the ...
6
votes
10answers
486 views

What is the easiest way to free space on a hard drive?

My hard drive became full. I am looking for ways to locate the things that use most of my disk space. I played with cron once so it may have consumed a great deal of space, but really I have no clue. ...
6
votes
6answers
28k views

Windows 7 - missing free HDD space

I have Windows 7 installed on a 45 GB partition, and every now and then it gets full, and I have to resize that partition. I always thought this was quite normal. But it happened again today and this ...
6
votes
3answers
478 views

How does RAID5 work? [duplicate]

In a raid 5 setup, you get 4 TB of usable space out of 3 x 2 TB disks. How is that possible? Simple minded as I am, I would think that you need 4TB to store your things, and use the remaining 2TB for ...
6
votes
1answer
7k views

Newly formatted (NTFS) external hard drive already has 'Used space'. What determines the used space's amount? Is it correlated to the HD's capacity?

I just bought a new external hard drive (WD Elements - 1 TB). In a PC with Windows 7, I formatted it by Right-clicking the drive > Format (Quick Format - NTFS) before using it and, and then checked ...
6
votes
3answers
848 views

Does the amount of available free disk space in Windows (XP only?) impact performance?

I remember reading that when the available free disk space falls below 10% of the total disk space on the computer, performance is degraded. If true, can someone explain this in more depth than what ...
6
votes
2answers
923 views

Why does my freshly-formatted disk have 450 MB of data on it?

The answer is probably obvious, but I'm sure enquiring minds want to know: if I erase a disk and reformat it, what's already taking up almost half a gigabyte of space? In this case, it's formatted ...
6
votes
2answers
4k views

Converting FAT32 to NTFS without formatting (server 2008)

I have a FAT32 partition in windows server 2008 machine. How can I convert the partition to NTFS without formatting? My intention is to resize the partition and add some more space to my primary ...