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

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119 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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78 views

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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323 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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1answer
167 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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11 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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27 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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257 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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2k views

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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925 views

Windows XP scheduled task not running at appointed time and triggering on login

I have a scheduled defrag task on my Windows XP machine to wake up the computer and run at 3:00am every day. Then I have two other scheduled tasks, one to reboot the machine after the Defrag at ...
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19 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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122 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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150 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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54 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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1answer
35 views

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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1answer
117 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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175 views

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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624 views

Windows XP: Disk Cleanup: File takes a long time to access

I recently ran Disk Cleanup (with the "compress old files" option) and Disk Defragmenter on a PC with Windows XP. This computer was purchased in 2004, and was a "middle of the road" computer at the ...
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80 views

Extra Volumes appearing after using MyDefrag

After using MyDefrag, when I start the defrag again, two new drives have appeared - with very odd names. They are both named the same thing: \\?\Volume{WhatLooksLikeAGUID} Note the Guid (and hence ...
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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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22 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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53 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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182 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 ...
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27 views

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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220 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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532 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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42 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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49 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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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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27 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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30 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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62 views

Defrag shows 'ghost' drive on Lenovo Ideapad

The Defrag window shows a drive which I can't find in Explorer, and I get no action when I try to defrag or analyse it, yet Defrag says this drive is 36% defragmented! What is it and how can I get ...
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213 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 ...