Defragmentation is the process that reduces the amount of fragmentation on a hard disk drive.

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Does resizing partitions cause damage?

I plan on resizing already-separated partitions. Let's say that there is partition A and partition B on drive C:. All of drive C: is NTFS, and drive C: is, in total, 1 TB. Partition A has 400 GB, and ...
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4answers
82 views

How do I defragment Windows paging file

Any suggestions how can I make pagefile.sys contiguous and move it to the beginning of the disk? Much appreciated. Update: I use Windows 7 64-bit edition.
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26 views

“Access is denied” to Admin when using Sysinternals Contig to defrag the $LogFile metadata file

I have folders with hundreds of thousands, to over a million files and subfolders in each parent. I'm reading that the NTFS log file may be responsible for slow file creation and other actions. How ...
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253 views

SSD: “The volume is too fragmented to complete this operation”

I am currently configuring a Thinkpad E540, having inserted a 256 GB M.2 SSD into the corresponding slot, in order to run Windows 8 from the SSD instead of using the preconfigured 16 GB SSD as a cache ...
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2answers
62 views

Tune up utilities drive defrag ate my disk space [duplicate]

Today I used Tune up drive defrag and after using it my free disk space decreased by 9 GB. Why did this happen. What can I do to recover the disk space? Thank you. I just found out that this is using ...
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24 views

Partitioning issues with an SSD drive

I have a Solid State Drive with 24 GB of free space. I want to shrink the volume by 20 GB to create a partition to install and dual-boot Linux Ubuntu OS. The problem is Windows disk management tool ...
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2answers
76 views

High response times in HDD. MFT, fragmentation or even halted disk?

I am experiencing really high response times im my HDD, which can go around 13000ms (from Win8 Task Manager). This occurs when starting up windows and for at least 3-4 minutes, also when doing ...
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40 views

PowerShell Remote Defrag

I have the following code that works fine on my Windows 7 computer: $Defrag = Get-WmiObject Win32_Volume -Filter "DriveLetter='c:'" -ComputerName "SRLVHOMAPP01" | Invoke-WmiMethod -Name Defrag But ...
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1answer
23 views

Maximum sequential speed for folder, defragment

How can I move folder at the beginning of the drive (partition) to achieve maximum sequential read speed in Windows? Can you recommend defragmentation tool that can do this ?
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1answer
53 views

When I copied photos from my camera to my desktop, they have fragmented equally throughout the remainder of my hard drive. Why?

A couple of days ago I copied 200 or so CR2 photos from my DSLR Canon EOS 1000D to a folder on my Desktop. Today when I opened up my defrag program it shows that 1 or 2 images has been scattered in ...
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2answers
79 views

How to defrag Virtual Box HDD files?

I am using Virtual Box on Windows 7 Machine. I have created several virtual machines of Ubuntu Servers on it. I store my all virtual hard drives on a dedicated NTFS partition. This partitions has ...
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2answers
53 views

What is the “System” disk that shows up in Disk Defragmenter?

When I run the "Disk Defragmenter" program that is included with Windows, two different "drives" show up. The first is, as expected, my C: drive. The second just shows up as System: What is this ...
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1answer
37 views

Windows 8(.1) additional utilities

I'll be brief: I've formatted my computer and now I'm trying to install as little software as possible. I was wondering if CCleaner and Defraggler are really necessary? Is cleaning the registry ...
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1answer
80 views

Trying to defrag computer on Windows 8 but possible virus wont let me open program

After trying to open Defrag through command prompt I receive this message The storage optimizer cannot start because you have insufficient privileges to perform this operation. <0x89000024> Help ...
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1answer
148 views

Unable to defragment win7 laptop

I have a Windows 7 laptop that I have been unable to defragment for the last several months. When I try to invoke the defragmenter from the command line it says "The dirty bit is set on this volume". ...
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1answer
17 views

When will Fragmentation appear such that a Fragment is at an lower address as the Basefragment?

By Basefragment I mean the first fragment of a file -- containing the header etc. Lets say I have a file which is fragmented into 3 fragments (1, 2, 3). 1 has the lowest address. I think most file ...
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3answers
69 views

How do I go about increasing defrag speed?

I'm running a defrag on a friend's laptop which is horribly fragmented and it is taking an age. Would killing any unnecessary running processes increase the speed of the defrag or is the bottleneck ...
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0answers
86 views

What is this mystery volume in Windows 8.1?

What is this mysterious volume listed in Optimize Drives list in Windows 8.1? I only have one hard disk, drive C:.
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1answer
66 views

Computer is very slow to open folder [closed]

How to fix my computer to make it very fast to access all folders? After defragmentation, my computer became very slow to open a folder. Before defragmentation, it could access the files from a ...
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1answer
980 views

Does Windows 8.1 prevent defragmentation from a SSD even in the event of running by mistake defrag on command prompt?

Hope you can me with this. I am concerned about a possible defragmentation on my SSD. I have a laptop running Windows 8.1 preinstalled and further equipped with a SSD. Windows 8.1 has detected the ...
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0answers
76 views

Disk fragmentation. Is it suppose to take up more space?

I decided to defrag my laptop for the first time after having my laptop for 1,5 years. I found this program piriform defraggler to use. it says my HDD is 13% fragmented, I clicked defrag and it says ...
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0answers
335 views

Windows 8: disk usage is always at 100%

I have noticed recently that my laptop runs slowly. Reason is (as I think) that disk usage is at 100% most of the time. It's also true even when running relatively disk-independent apps. What did I ...
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1answer
116 views

defrag command line in Windows 7

I'm trying to consolidate my system partition volume by running defrag in a command prompt in command line recovery mode. This is the command I'm trying to have executed: defrag C: /X /H /U After I ...
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2answers
339 views

Windows 8 wrongly detects my Raid1 HDD as Solid state disk

I have upgraded my machine from Windows 7 to Windows 8 and then Windows 8.1 (this is the only available upgrade path to keep my files, settings AND applications). My system is setup as follows: 2 x ...
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37 views

Defragmentation - stuck at high percent, SQL and big file drives

I have a question regarding fragmentation - I am maintaining a couple of SQL and file servers. All of them store their data on D:\ (for SQL server it makes D:\ drive be actually about 10 files, all ...
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26 views

Windows will not open processes

I recently I come upon an unexplainable issue concerning my Windows 7 partition. When I woke up Thursday morning and logged into Windows, I discovered that it was acting really slow. It didn't take ...
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1answer
71 views

OS partition has 512 bytes clusters, should I convert to 4k?

I made a mistake and formatted the OS partition with 512 bytes cluster size, thinking that this will save a lot of space when storing small files (That was a long time ago, I didn't know that it will ...
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55 views

Reallocation Event Count high threshold

I've bought recently a WD black, and I've made a SMART check on it, these are the values : http://prntscr.com/3t6szr The rellocation event count worries me. The HDD works pretty neat tho. Installed ...
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1answer
43 views

Can a USB be removed with out un-mounting during de-fragmentation

I have a USB flash drive formatted to fat32 and I have a batch file to defragment it. Would there be any damage done to the flash drive or it's files if I was to unplug it from the USB port while it ...
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1answer
105 views

Best way to defragment hard drive? [closed]

I'm trying to understand how defragmenting works so I can write my own program to do it. I was considering have it iterate through the files on the hard drive and defragment them each seperately. ...
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0answers
29 views

Are there cases where defragmentation slows down computer? [duplicate]

In the question Disk Defrag slowing computer down? the answerer claims that there probably isn't any reason for defragmentation to slow down a computer. If I have a 5GB movie and I make it one ...
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45 views

Boot defrag before or after full defragmentation

As part of regular housekeeping I often run defraggler. I also run a boot time defrag. Is there any difference what order these should be run. I usually run boot-defrag first as I feel the normal ...
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1k views

How often should I defragment drives?

You can schedule Disk Defragmenter on Windows 7 to defragment disks daily. When it is useful?
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203 views

Where on the disk is the NTFS reserved area?

By default on a freshly installed system with plenty of free space on a disk, where are the NTFS reserved area located on the disk? What percentage of the way through the disk is it located at? ...
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1answer
232 views

Does Disk Defragmenter run if schedule is missed?

I'm reading a Microsoft book which says: Disk Defragmenter runs automatically on a schedule in Windows 7 (every Wednesday at 1 a.m.). What happens if the computer is not powered on at 1 a.m. ...
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78 views

Consolidation of Free Space on Ext4

I'm building an linux installation which then will be pushed to various devices with different means of mass storage. Therefore, I'd like to shorten the partitions lengths before creating an image to ...
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1answer
137 views

Defragging SSD once in order to shrink partition is also bad?

I need to somehow "defrag" my windows 7 partition in order to make a smaller image-backup of it, But windows disk management won't allow me to shrink the partition beyond x mb I need. Defraggler shows ...
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2answers
945 views

how to fully consolidate freespace on a defragmented HD

My scenario: my hdd is fully defragmented and must be kept defragmented free space must be fully defragmented (no small gaps) so when copying new files with iso2opl they aren't fragmented I think ...
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5answers
3k views

Is it bad to defrag a ssd? Or just pointless? [duplicate]

I've read on some websites that it's bad to defrag an ssd. But I'm reading on this website now and one person was like "You didnt do any harm its just not necessary to defrag it." I feel like that's ...
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1answer
320 views

Optimisation not available on TrueCrypt drive with Windows 8.1

I have Windows 8.1 with TrueCrypt 7.1a. I have encrypted the whole of my secondary drive. The "Optimise Drives" dialog reports the media type as "unknown" and the current status reports as ...
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1answer
28 views

EXT and other filesystems

Is it true only NTFS needs to be defragmented? Are filesystems like ext4, 3 and 2 immune to fragmentation issues. Apple never seems to require a defragmentation so what makes some filesystems immune ...
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0answers
212 views

Contiguous physical allocation of a set of files in linux filesystem (ext4)

I have a set of files that I wish to be allocated contiguously in the filesystem. I will be accessing all these files sequentially in a single read one after the other and I want to optimize reading ...
2
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1answer
175 views

Is Defrag “invisible” in Windows 8?

After (buzzard's luck) installing Visual Studio 2013 RC a couple of days ago, and then Visual Studio 2013 RTM yesterday, I thought I should defrag, what with all that install/uninstall activity going ...
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1answer
250 views

Can you defragment your hard drive to much?

Is it possible to defrag to much, can this be potentially harmful to your hard drive? Just curious as I like to defrag my Hard disk every week or so sometimes even more often...
3
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1answer
344 views

Windows 7 laptop freezes after an hour

I have a laptop with Windows 7 Enterprise. If I leave alone for an hour then the laptop freezes. I have checked all the power options so that nothing kicks in (like hibernate, etc.) after an hour. I ...
2
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1answer
3k views

What happens if I stop defragmentation?

I'm using Disk Defragmenter to defragment a volume (almost 160 GiB in size). I thought it would stop after 100% defragmentation, but now I see there are multiple "passes" for "consolidation". The ...
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2answers
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Why unused files files get fragmented? (Windows 7)

Every now and then i defrag my HDD partitions to maintain my PC, and each time i notice fragmented files that i haven't read/wrote-to in a while. For example npm-cache, i haven't used Node for ages! ...
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1answer
182 views

Why a command prompt comes out then disappear after I click defrag in search in Windows 8?

I did exactly the same in the pic: then I saw a quick command prompt come out and it did something quickly, then it is closed by itself. I installed the smart defrag 2, used it then uninstalled it, ...
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1answer
133 views

Windows defrag “Movable files and folders” = 23 on an empty drive?

I'm curious as to why a blank (as in formatted) drive would show it has Movable files and folders or even Unmovable when I run the Windows 7 defrag tool on the drive. C:\windows\system32>defrag E: ...
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5answers
12k views

Does Windows 7 actually defragment an SSD drive if you tell it to?

Defragmenting an SSD drive is a bad idea and Windows 7 is (should be?) smart enough not to schedule defragmentation on such drives. However, I've opened up Disk Defragmenter on my system and found, ...