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

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Is defragging relevant to improving disk performance anymore?

Does it stil make much difference, now that we have much faster and larger HDDs? Generally I find if disk performance is getting too slow, it's probably because of too little free space, and the ...
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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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4answers
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Do I need to run defrag on an SSD? [duplicate]

Possible Duplicate: Do SSDs suffer from fragmentation? Is there an advantage to it? I mean, SSD is essentially random access memory.
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8answers
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Why can't you defragment Solid State Drives?

I keep hearing that this is a huge no-no. Why is this? I run Ubuntu mostly so it doesn't affect me, but I was just wondering.
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5answers
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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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How do you defragment the MFT on an NTFS disk?

A while ago, I nearly filled my hard drive, much more than the recommended maximum of 85% of capacity. I believe that NTFS started storing files in the space reserved for the Master File Table (MFT) ...
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1answer
999 views

Is running daily defrag bad?

Running a RAID 0 setup and was wondering if running defrag too much would lead to a disk failure faster? Disks fail based on doing too many reads and writes? or is it based on the spinup and spindowns?...
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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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What does a defrag actually do?

What does a defrag do really? Does it put the files that execute in sequence closer together?
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1answer
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Why is disk fragmentation measured as a percentage?

In Windows if I open up the Disk Defragmenter and analyse a disk the tool reports the disk fragmentation as a percentage: What does this percentage mean? Obviously if a drive is 0% fragmented then ...
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1answer
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Has Microsoft improved Scandisk, CHKDSK and Defrag in Windows 7?

Is there only interface design change or something internally has changed? Most of the time I could see that Scandisk is unable to check OS partition as there are no rights. It schedules the task to ...
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0answers
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Defrag & Pre Optimize OS & Data Partition when cloning from SSD to HDD?

There are times I have had to clone an OS or Data partition from an SSD to a HDD. It results in major performance losses, obviously until I can sit and Defrag/ Optimize / Boot Optimize the ...
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Looking for an alternative to the Windows defrag utility [closed]

Under Windows XP, what are some alternatives to the default disk defragmenter?
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How to measure performance gain with defragmentation?

I believe I understand the basic concepts of fragmentation of data on hard-drives, and the concept of defragmentation to counter the effects of this. What I don't really understand is how one actually ...
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2answers
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Why do disks fragment?

As a part of regular Windows maintenance, I defragment my hard drive. But why does the hard drive fragment on NTFS and FAT* systems? Apparantly ext* does not, why is this? Should I also be ...
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4answers
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Do I need to defragment Mac OS X?

Does windows need to be defragmented regularly? Why does MacOS not have a Defragmentation utility? Please teach a detailed person
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2answers
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Defragment Everything at Boot Time

Is there any defrag tool which defrags every fragmented file at boot time? So far, all of the tools I have seen only defragment the page file, MFT and system files at boot time.
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Does Defragmenting really help? [duplicate]

Possible Duplicate: Is defragging relevant to improving disk performance anymore? It used to be that defragmenting a hard drive gave a significant boost to performance. In the DOS days I would ...
8
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3answers
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Do I need to manually defrag a Windows 7 PC?

Given that Windows 7 will auto defrag a PC when it's idle, does that mean manually defragging a PC is a thing of the past?
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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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2answers
447 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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3answers
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How to force files together on a Linux partition?

I have a dynamically expanding VDI file which is 14 GB big while the partition itself is only 2 GB. The files are too spread out over the disk so zero-ing the free space and compacting the VDI didn't ...
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0answers
271 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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1answer
410 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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2answers
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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 ...
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1answer
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Defrag and symbolic links in Windows 7

I recently purchased an SSD, and for a few reasons not worth going into I had to install Windows on a traditional HDD and make symbolic links so "Program Files" actually goes to my SSD. I started ...
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4answers
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Defragmentation and 15% minimum space with Windows XP

Why does Windows XP require a minimum space of 15% of the HDD to complete a defrag of a NTFS drive? Is there a better utility which doesn't have this limitation and yet does the job?