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

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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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30 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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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 ...
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199 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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285 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...
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453 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 ...
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4k 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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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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203 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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148 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
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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, ...
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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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2k views

How to defragment a large TrueCrypt volume that has barely any free space

I have a TrueCrypt 7.1a volume that is about 50 GB in size, formatted with NTFS and has close to 100 MB of free space. I have close to 300,000 files in it. When I was setting this up, I did this ...
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4answers
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Defragmentation stops and does not reduce below 52%

In one of my PC a single drive is not defragmenting. When i do it using windows defragmentation option the fragmentation does not reduce below 52%. I tried so many times and facing same problem. Then ...
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745 views

Can you defrag an encrypted file system

I just encrypted my entire hard drive with truecrypt and was wondering can I still defrag it? Or will that not work anymore or break something.
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What does the percentage in Disk Defragmenter Represent? [duplicate]

When I analyze a disk using disk defragmenter, it gives me a percentage. What does this percentage represent (number of fragmented files over total files?) I am using windows 7 64 bit.
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Hot File Clustering with multiple partitions

I'm planning a performance-oriented clean install of OS X 10.6 and I was wondering if the hot file clustering feature will exists only on the boot partition or if there will be one for each partition ...
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1answer
381 views

Windows Server 2008 defrag log?

Is there a log file for Windows (Storage) Server 2008 built in defragmenter? I can not find a log file, event ID, or anything that gives a reference to the status of the defragmenter. From 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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220 views

Why I cant' defrag my computer?

I tried to stard defrag in many way (start menu, run dialog and so on), and never would start. So I tried trough command line and what I get when I run defrag command is: Parameter is not correct ...
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154 views

Is a disk defragmentation needed in this case?

I'm running Debian 6.0.5 (squeeze) with ext3 as the filesystem. I'v read that ext3 does not require defrag, but I was recently trying out some torrent clients and they all came with the allocate disk ...
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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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O&O Defrag: How do you auto-shutdown after defragging a hard drive?

I want to do defragmentation and then auto-shutdown the computer after the defragmentation has complete. In O&O Defrag, there's a feature where you're able to execute a certain job after ...
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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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253 views

Windows 8 defrag schedule ambiguous

Windows 8 introduced a new dialog, called "Optimize Drivers", in which they have put a "Scheduled optimization" part. We can now choose a schedule for the optimization, but it is unclear to me what ...
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630 views

Windows 7 — Should we forget defragmentation?

Under Windows 7, restore points are now basically incorporated in the Volume Shadowing Subsystem. I have heard defragmentation (including the one provided by Windows 7) has the possibility of ...
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440 views

Moving swapfile.sys when Defragmenting Windows Partition

I am trying to defrag the hard drive partition that Windows is running on so I can shrink the partition and create a second one. I have cleared off almost 400GB (which will allow space for an ideal ...
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527 views

Does copying a fragmented source result in a fragmented target?

If I'm going to copy a hard drive or create a VHD, should I defrag the source drive first or does it not matter? Fragmentation, as I understand it, is a result of non optimal writes so I'm not sure ...
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Do ext4 filesystems need to be defragmented?

Do ext4 filesystems need to be defragmented? If so, how do I defragment them? If not, could you post a simple explanation of why they do not need to be defragmented?
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59 views

Stubborn system file will not budge from the end of drive, cannot shrink partition

I'm trying to shrink my Windows 7 partition on my 400GB HDD down to about 200GB to dual boot Ubuntu, and I have consolidated all my data and defragged a number of times with different programs (PD12, ...
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360 views

Parse contig.exe output to *.csv using command-line or PowerShell

I am trying to parse the output file from contig.exe into a a comma-separated value file. I've developed a method to do this is Notepad++, but given the number of files I have to parse (hundreds of ...
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462 views

Can i defrag windows partitions without affecting linux partitions?

Should I use any defragment software or just use builtin windows defrag manager ? I have three OSs installed in my pc. I have Fedora 17 x64,Ubuntu 12.04 x86 and Windows 7 Ultimate x64. How can I ...
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How do you get more detail out of the automated disk defragger?

It is somewhat nice that Microsoft decided to automate the disk defragger. But today my system seemed kind of slow so I thought I would run the Analyze portion to get a report particularly on the ...
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Can constant defragmentation damage a regular hard drive? [duplicate]

Possible Duplicate: Is running daily defrag bad? I heard some people say that constant defragmentation can damage a hard drive because it does a lot of read/writes. Is this true? Am I ...
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122 views

Moving data to lower sectors on an SSD without defragging

I bought an Intel SSD drive a while back and now I want to dual-boot with it. But for some reason there are sectors near the end of the drive filled and I can’t seem to find a way to remove the data ...
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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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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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1answer
397 views

How to actually defragment a JFFS2 filesystem

I have searched all over the Internet, including on a number of StackExchange forums, for a workable method for defragmenting a JFFS2 filesystem and cannot find an answer. The system in question has ...
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In linux, how do you check if a disk is fragmented?

At boot, fsck sometimes reports the frgmentation for a disk: "5.3% non-contiguous". How can I get this information myself? Is there a specific fsck invocation?
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Does a hard drive “working hard”, i.e. when defragmenting or otherwise continuously active, significantly affect a laptop's temperature?

Trying to diagnose and fix an overheating Acer 5735 laptop, running speedfan and doing general workload to try and cause the overheat conditions. I notice that windows xp is badly fragmented according ...
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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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174 views

Defragging a mac with Drive Genius 3

I've heard many times over that OSX's system for handling files does away with the need to defragment my HDD unlike in Windows. However, I tried out Drive Genius 3 and it shows that 75% of my HDD ...
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816 views

Is Windows defragmentation recommended before installing Linux?

I want to have both Windows and Linux installed on one HDD. I always install Windows first because GRUB recognizes Windows and auto-configure its config files. So I installed Windows, installed some ...
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3k views

Can't resize my drive, because there are unmovable files at the end

There are two unmovable files at the end of my partition, which prevents "Disk management" to resize the drive properly. The files are: Syscache.hve.LOG.1 Syscache.hve There is no shadow copy ...
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909 views

Is it necessary to reboot after defragmenting an external drive when using Windows 7?

It's my understanding from many years ago, that it is imperative to reboot after defragmenting . Is this still true for an external drive? I'm guessing that this would hold true for another ...
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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 ...
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181 views

Defragment by format--copy-back

I want to do a defragment operation on my drive but I want it to be outside windows. This way, there will be no conflicts between files in-use and other issues. Is a defragment operation the same ...
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Why do big gaps remain after defragmentation in Windows XP?

I had the understanding that disk defragmentation in Windows XP reorganises your data so that files are contiguous along your hard drive. Every time I defragment my hard drive, I end up with blue ...
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Improve performance of RAID SSDs (without TRIM) with periodic disk defrag? Lack of TRIM even important?

I'm in no way experienced with setting up RAIDs or using SSDs, but I'm considering purchasing a SSD RAID setup (potentially RAID 10, but maybe RAID 0) and I've been doing a lot of research. A lot of ...
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515 views

Disk defrag scheduled task breaks on reboot

I configured the Windows 7 disk defrag utility to run on the 1st of the month at 1:00 AM. The associated task gets created in the Task Scheduler and all is well until the next time I reboot my ...