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Questions tagged [defragment]

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

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Right parameters for defrag on Windows Server 2012 R2

In Windows Server 2012 R2 I used the standard dfrgui.exe to turn the scheduled optimization on. After several months I looked at the Defrag UI again and noticed that drives were never optimized since ...
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Windows Server Scheduled Drive Optimization (defrag/TRIM) drives list is empty

I want to setup scheduled drives optimization on Windows Server 2019 (defrag HDDs and TRIM SSDs). The Optimize Drives main window lists my drives properly. But when I want to select the drives that I ...
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How to prevent massive fragmentation when copying large files to NTFS HDD?

I have some virtual machines, and for example the first one I'm looking at is 89gb. Unfortunately when I try to copy it to a new drive it forms around 100,000 fragments (more than 1 per mb.) I don't ...
Slbox's user avatar
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Manually defragmenting a Mac? Strange phenomenon with CPU usage

Processes on Mac OSX getting 'stuck' and strange CPU usage describes the same phenomenon, but for writing. My question concerns reading. OS X version 10.8.5 I have about 30 million small files on my ...
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Defragmenting partitions with Raid 0

In my current disk configuration it is 2+2 TB Raid 0. Since this 4TB of space was almost full, I installed two more disks in Raid 0. (2+2 TB) I have 8 TB of volume space in total. But in Ubuntu, the ...
Lutfu Kacaran's user avatar
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Defraggler left some spots at the end of my SSD

Initially, I wanted to make a dual boot with Linux on my laptop and to accomplish that I had to shrink my C: Partition. I couldn't do that because there was just ~6 GB of space to shrink, so for that ...
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How to close firefox when the system feels so bad that the cursor barely moves?

I have a habit of having lots of tabs in my browser. Now I am using Debian and Firefox after many years of being Windows user. This habit is not a problem on Windows because mouse/cursor is totally ...
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Why can't I fully defragment my USB?

On my NTFS USB Drive, I need to have isos defragmented to be able to boot them. But neither Windows' native defragmentation nor UltraDefrag fully defragment my files, as verified by contig on Windows ...
xeruf's user avatar
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Defrag NTFS file system on SSD drive?

I purposely did a bunch of large file operations at the same time knowing it would cause the MFT to grow and become full of runs and building a large attribute list with the idea of just defragging ...
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Can rsync --remove-source-files to the same drive reduce fragmentation?

I know that rsync with --remove-source-files (which I use instead of mv so I can merge directory hierarchies) creates new inodes: stat 2021_07_30_20_18_17.pdf~ rsync --remove-source-files ...
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like others i cant get fragment down to less than 7%

i now use Piriform CCLEANER PRO to clear out all internet temp files & cache etc every time i close my browser(daily) and i use Piriform CCLEANER PRO to clear out my registry. (twice a week) i ...
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Windows 10 SSD maintenance/defragmentation/compression query

I have a 1TB Samsung EVO SSD as my system drive (Windows 10). I let it get almost full and paid the price - performance writing new files dropped off by a factor of something like a thousand. I ...
theonetruepath's user avatar
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How to defragment Virtual Machine in order to optimise virtual HD backups?

I've got the following setup: a virtual machine with a virtual HDD at 160GB split over around 50 files (it's a VMWare VM, so I'm talking about VMDK files) after working in the VM for some hours, my ...
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Defrag on SSD when DisableDeleteNotify

What does the scheduled defragmentation really do on a SSD when DisableDeleteNotify is manually set to 1 on recent Windows versions like Win 10? Assuming that the SSD is properly detected by ...
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I can't use defrag.exe but I can use Optimize-Volume cmdlet

I have encountered a weird problem. I don't know how or why it happened, but it just had happened. The thing is very simple, I can use Optimize-Volume cmdlet on both PowerShell 7 and Windows ...
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How to defragment SYSTEM?

I was unable to defragment SYSTEM in Windows7 which is fragmented by 5% as shown in the figure below: On selecting SYSTEM first and then clicking on Defragment Disk option doesn't defragment SYSTEM ...
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chkdsk An unspecified error occurred (696e647863686b2e 20e4) & (6672732e637878 5e4) also missing from defragmenter

I keep running chkdsk on my HDD (it's a disk for games) but it keep failing in one way or another and need to it ever time it starts up. I've got several pastebins of chkdsk I've done, these are the ...
Gideon Sassoon's user avatar
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2 answers
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Fragmented NTFS HDD - Slow File Deletion 600ms per file

I have a directory with 42048 File(s) 32,442,230,574 bytes Running defrag tells me everything is fine defrag E: /A /V Microsoft Drive Optimizer Copyright (c) Microsoft Corp. Invoking analysis on New ...
Alois Kraus's user avatar
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What does the Windows 10 defragmenter do if it encounters a bad sector in either the source or destination?

What happens when defrag tries to read or write there? Does it error out and just stop? Does it warn the user of bad files? Does it try to fix anything? Does it keep going? I know that if I suspect an ...
racketteer's user avatar
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1 answer
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How to find if defrag session is finished on Windows 10?

I decided to defrag my C drive using the GUI and left overnight to run. Eventually though, I became unable to maximize the progress window and therefore, don't know if the process is complete or not. ...
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Does defragmentation increase lifespan of hard disk drive?

I would like to ask you if defragmentation actually increase lifespan of hard disk drive, or is it just performance thing? Another point of view, can defragmentation degrade lifespan of hard disk ...
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what is the Analyze and Optimize button do in degragment software in windows

what is the difference between analyze and optimize buttons in the disk optimize software in windows. OS windows 8.1
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Disabling automatic defragmentation with both SSD and HDD

I have both a M2 SSD and a HDD in my computer. Now I've been trying to make my SSD faster, and found a video that said disabling automatic defragmentation would help me. But since I have both, I would ...
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How to defragment multiple EFI partitions?

I tried installing another non-windows (linux) operating system along side Win10 but due to some issues had to delete it later. Now after deleting the partitions that Linux was occupying, I see 2 ...
peakit's user avatar
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Task Scheduler ScheduledDefrag, incrementally?

\Microsoft\Windows\Defrag\ScheduledDefrag in task scheduler, does this actually defrag 'incrementally', maybe with a fixed size at a time, or can it continually defragment a whole harddrive, while ...
dza's user avatar
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fixing a heavily fragmented HDD

on my laptop I have a ssd(ubuntu) and hdd(windows10 +storage). my main OS is the ubuntu and I use windows mostly for games. the hdd acted really slow so I checked it and windows defragmantation tool ...
M12421K's user avatar
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1 answer
377 views

How to list the most fragmented files on Windows 7

defrag on previous Windows versions produced a report with the list of the most fragmented files. Often a few files are responsible for most of the fragmentation,allowing me to delete/move such files ...
Manu de Hanoi's user avatar
2 votes
2 answers
4k views

windows - Free space on disk but cannot partition

Iv'e been trying to set up an Ubuntu 18.04 as dual boot alongside my Windows 10 on my personal laptop, using this guide. I have only one disk, so the first step is to shrink the current partition ...
juleand's user avatar
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How does the Disk Defragmenter in Windows 7 optomize the main OS boot volume?

When checking under the "Application" section of my event logs from within the Event Viewer, I often see references that the Disk Defragment service has completed boot optimization on my main ...
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Can I remove massive DFOptimize_#.bin files from C:\?

There are about 50 of these DFOptimize_1.bin files, each with a different number (DFOptimize_1.bin, DFOptimize_2.bin, etc.) in my C:/ drive. From my research, it looked like these were connected to ...
Peacock's user avatar
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What does Piriform Defraggler's "Optimize" option for SSD do?

I regularly used Piriform's Defraggler to defrag my hdd. Switching to SSD, I thought it was no more necessary, as SSDs do not require defrag. I used it to make a benchmark, and the program proposed ...
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Power fail while running defraggler SSD optimization

Tonight I was running Defraggler's Optimization tool for SSD, but at some point power in my home went down, and the pc has been powered off in the middle of the job. I ran it again, to find out my ...
Kodeeo's user avatar
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Setting system-wide quota on ZFS

It is commonly recommended that one shouldn't fill a ZFS volume beyond 70-80% to prevent fragmentation. I, however, find that I have gone beyond that in the past (the "I need just a bit more, I'll ...
Mark's user avatar
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EMTEC 32gb flash drive

I have work pictures and videos on this and now when I go to use it it says to reformat it. I dont know if I could recreate the data again:( Prior to Windows 10, I was able to do a disk clean and I ...
WWS2's user avatar
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Sufficient assurance that defragmentation is disabled in Windows 7?

The vendor documentation for a hybrid SSD/HDD drive says to disable disk defragmentation because it undermines the algorithms that determine what portions of the conventional magnetic drive to store ...
user2153235's user avatar
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Is it possible to estimate the time of defragmentation?

My PC is 8% fragmented, and I'm currently on Pass6, more or less 20 minutes have passed. I wonder if there is a way to know the estimated time it will finish?
Akaneeee's user avatar
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In what order does Konqueror copy files? Is it biggest first? Is this helpful?

I've selected a very large set of folders in Konqueror and copied them from one disk to another. I'm noticing, watching the progress, that it's blatantly not copying in simple depth-first order. ...
Boann's user avatar
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Defrag left disk full

I have a 900GB HDD that had around 120GB free. The disk was showing 55% fragmented so I ran a defrag. The defragmentation took a long time and I left it running over the weekend, but unfortunately ...
ventsyv's user avatar
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Windows defrag error Error code 0x89000019

Clean Install Windows 7 64bit, all updates applied Ran defrag from the command prompt and got error Error code 0x89000019 Also logged w windows event error 257 Plenty of Free space. What causes ...
Moab's user avatar
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Is fragmentation worse the larger the drive is?

My work computer was very slow and became faster after I defragmented the hard drive. I remember my old personal computers weren't as slow when their drives were fragmented, but the drive was like ...
stormtrooper's user avatar
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3k views

Does defragmenting a hard drive require at least some free space? If so, how much?

Question inspired by this gif from wikipedia: (Source: https://en.wikipedia.org/wiki/Defragmentation#/media/File:FragmentationDefragmentation.gif) In the gif, the blocks (sectors?) are moved to free ...
potatoman's user avatar
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Do rolling releases inevitably cause higher fragmentation over time than point releases?

Let's compare Debian Stable as a candidate for point releases and Arch Linux as a candidate for rolling releases: Does a rolling release by default cause higher fragmentation on the drive than a ...
Dave's user avatar
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Writing to hard disk , whilst running windows defragmenter (secondary hard drive)

Is it ok to write to a HDD whilst running the defrag tool? I decided to check how fragmented it was and it was 39% so I am defragging, but its taking a long time. I wanted to install a game to my ...
Big T Larrity's user avatar
1 vote
1 answer
3k views

Directory with more than 4096 bytes

A directory file has typically 4096 byte. However, I have a couple of directory files which have a size of more than 4096 bytes, e.g. 28672, 12288, 20480, 16384 (for ext4). I read this article and it ...
musbach's user avatar
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2 votes
1 answer
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How can I defragment a ReFS mirrrored Storage Space (Windows 10)?

Possibly related question: https://serverfault.com/questions/790563/refs-is-fragmentation-ok-is-defragmentation-needed Note that I am using Windows 10 Home, version 1607. The Storage Space has four ...
stands2reason's user avatar
11 votes
1 answer
18k views

Defrag Terms Description

There are 3 terms used in the Windows defrager. Relocated, consolidated and defragmented. Can someone give me some clarification of them?
Hello Stack's user avatar
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Moving hard disk blocks after deleting file

When deleting a file in windows (and maybe in other operating systems too), it leaves a free zone in the hard disk. Example: Here is a representation of hard disk blocks (blue square represents a ...
user8337939's user avatar
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What happens when I restore my windows (Linux) system back to my hard disc, when I didn't do disc defrag?

An intersting question is now surrounding me: 1) First I didn't do any disc defrag and I did a backup with Windows Image Tool for my current system. 2) Then after a long time, I restored from the ...
xqMogvKW's user avatar
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5 votes
4 answers
36k views

Running Windows disk defragmentation on boot in Windows 10

My PC shows that the system reserved and the windows partitions are fragmented above 10%. I kept the defrag option running within Windows but there is no impact on the fragmentation percentage. I ...
jitendragarg's user avatar
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4k views

Auslogics Disk Defrag SSD Support

I am using Auslogics Disk Defrag in my computer to defrag my drives. Recently, I change my main system drive into an SSD. I then enabled the TRIM feature in its SSD support settings. Question is, if ...
Jimwel Anobong's user avatar

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