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

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O&O Defrag on restart method

Is it possible to decide the defragmentation method on O&O Defrag 18 on "Settings->Boot time defragmentation"? I want to use the Complete/Modified method but I cant find any option. Just "Execute ...
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5k views

Unknown volume listed under Windows defragmenter

Does anyone know what "\?\Volume...." is or why it would be listed as a disk on the windows defragmenter? It is not listed on other defragmenters like defraggler. The E: and F: drives are ...
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Defragsvc service causes high cpu load whe notebook is idle on Windows 8

When notebook is idle, defragsvc service starts to doing some weird things and causes high cpu load. This is not regular defragmentation job, since all disks (both ssd and hdd) are not fragmented. I ...
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57 views

How To Defrag Windows 8 System Reserved Partition

Today I was cleaning up my computer and stuff and when I was defraging my partitions I saw that the System Reserved partition is 100% fragmented. So I tried to defrag it, but it doesn't seems to ...
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48 views

How to switch from SSD to HD in Windows 8.1?

I'm on the verge of giving up on this. I thought I would pose the question since I haven't found any answers and some other poor soul might run into a similar challenge. How do you configure Windows ...
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What does “Optimize Drives” do in Windows 8?

With Windows 8, there is an option to "optimize" a drive. This looks similar to the Defragment option of previous versions of Windows: I have an SSD and I know that SSDs shouldn't be ...
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30 views

Windows 8.1 dfrgui not seeing drive C or not starting at all

I've made a clean re-install of Windows 8.1 x64 today. I decided to check the disk defragmentation schedule. To my surprise, dfrgui.exe did not list drive C:, showing only my external hard drive ...
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13k views

Windows 8 will not defrag or analyze system hard drive

I recently bought a new laptop that runs windows 8. It has been about a month and I wanted to clean the system up a bit to keep it running smooth. I tried to defrag the system hard disk drive but when ...
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73 views

How does Windows calculate the fragmentation percentage?

When running defrag -a -v C: on Windows 2008 R2, I got the following output: Windows Disk Defragmenter Copyright (c) 2006 Microsoft Corp. Analysis report for volume C: Volume size ...
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4answers
2k views

What are “Excess Fragments” in defragmenting a hard drive?

I'm defragmenting my hard drive (XP SP3) with PerfectDisk 7.0, and it finds 816,659 excess fragments when I ask for an analysis. [update] Specifically, it shows that the 1TB disk is 14% fragmented ...
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1answer
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When overwriting a file, how does this effect the filesystem NTFS?

Say a I have a secondary hard drive that has been defragged and optimized so that the data is a nice neat continuous block with no missing spaces/clusters. Like a solid brick wall. If I copy a file ...
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53 views

Why is my newly rebuild disk already horribly fragmented?

I just rebuilt my disk from scratch (windows 7, ntfs). Each file has been written exactly once, and essentially nothing has ever been deleted or rewritten. The disk is only 20% full. My prediction ...
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Compact files into contiguous area on disk [closed]

Consider the following case: a disk has two very large files stored one after the other - the first being slightly smaller than the second. As far as I know (and please correct me if I'm wrong) - If I ...
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1answer
57 views

Windows 8.1 thinks my partitions are SSDs

I just removed an SSD from a PC so that I could put it into my "new-used" laptop. With the SSD, I had simply cloned my System and Windows partitions to partitions onto the HDD as a backup/recovery ...
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1answer
46 views

How to investigate problems of SSD with a sequential read speed of 0.1 MB/s? [closed]

Which is the checklist to check when an Hard Drive is going so slow? Are bad clusters suspected? Fragmentation? The cable? Trim not being enabled? What would you check as a professional guy? OS: ...
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5answers
3k views

How can I tell if one defrag utility is better than another? [closed]

There's a lot of free defrag utilities (such as Smart Defrag, Auslogics Disk Defrag, JKDefrag, Defraggler, and there's alot more) But are they actually any better than the built in Windows one? And ...
4
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2answers
950 views

Avoiding extreme fragmentation of compressed system images on NTFS

Problem explanation I'm storing windows disk images created with wbadmin on NTFS drive, and I found compressing then with NTFS compression gives 1.5-2× space conservation, still giving full ...
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1answer
420 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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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
150 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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“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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1answer
1k views

Does anyone know if it's 'normal' that you can't defrag an Outlook .ost file?

I've tried defragmenting my hard disk to see if Outlook performance improves. The .ost file shows 1000+ fragments but even after a post-defragmentation restart - never launching Outlook - it still ...
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2answers
220 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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47 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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3answers
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Should I defrag an SSD drive? [duplicate]

Can I run Windows' defrag on an SSD drive ? Well I believe the short answer is yes, I've heard that SSD drives require special and specific tailored defrag programs. Is it true and, if so, where ...
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2answers
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Defragment a file or folder? Windows 7

Is there a built-in way to defragment a folder? I am using VM Player so I would like my 3 GB disk image to be defragmented if possible. My disk partition that the image lies in has 12 GB left and ...
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2answers
272 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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117 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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5answers
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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
30 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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1k views

Impossible to defragment and resize a partition

I'm trying to shrink the main partition on my new PC with Windows 7 64-bit preloaded from 500 GB to 100 GB. Unfortunately, some files prevent any attempt to go below 290 GB. I have already ...
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315 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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1answer
63 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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What block allocation algorithm does NTFS use?

On Windows XP 64, I downloaded a 1.2 GB file and it ended as fragmented as the image shows. Unfortunately, before taking the snapshot from Piriform Defraggler I defragmented the other files, so you ...
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420 views

When is the data in the journal written to the disk?

(1) mentions that "With a journal the file is first written to the journal, punch-in, and then the journal writes the file to disk when ready. Once it has successfully written to the disk, it is ...
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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
40 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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How to manually move files on physical hard drive?

How can I manually move files on a physical hard disk? I want to move files which are never modified, only read, to the end of the partition, like movies or something.
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Do SSDs get fragmented, and if they do, is that an issue?

Do solid state drives get fragmented? And if they do, does it cause their performance to suffer?
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Wiping Deleted Directory Entries and Defragmenting Directories

Edit I guess I should clarify that that the goal is not to securely wipe data or wipe traces of activity. The goal is to defragment folders. It’s easier to understand what I want for those who are ...
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197 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
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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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391 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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3answers
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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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205 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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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
2k 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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Can't shrink a data partition on a Windows 8 computer

My computer is running Windows 8 X64 Enterprise. I have two partitions, C (System) and D (Data). Both are bitlocked. I would like to shrink my D partition (in order to create a new one). Using the ...
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1answer
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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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149 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 ...