Windows 8 and 8.1 Forums

Defrag on SSD

  1. #1


    BELGIUM
    Posts : 503
    WINDOWS 8.1 x64

    Defrag on SSD


    hi guys,

    installed 8.1 some 2 weeks ago (give or take).

    Now today i wanted to look to my 2 external spindle drives if defrag had run and it did run......BUT also on my Samsung SSD's which i never do myself.

    So has anyone else has this problem too because i do not find this funny.

    thanks

    Jeff

    Note   Note
    Quote Originally Posted by Vadikan View Post
    Windows 8 erroneously defrags SSDs, indeed. Doesn't look like it's been fixed in Windows 8.1.

    My blog's got only one article in English, but it's about this issue

    Why Windows 8 defragments your SSD and how you can avoid this
    Last edited by Brink; 07 Aug 2013 at 10:14. Reason: added note

      My System SpecsSystem Spec

  2. #2


    Posts : 43
    Windows 8 Pro


    Never defrag a SSD! They use TRIM instead. Defragging a SSD shortens its life due to all the writes that occur when defragging.
      My System SpecsSystem Spec

  3. #3


    Posts : 22,577
    64-bit Windows 10


    Hello Jeff,

    No worries, the included "Optimize Drives" feature in Windows 8/8.1 will automatically defrag HDDs and TRIM SSDs as needed on a schedule, or when you manually run it.

    Optimize Drives - Defrag HDD and TRIM SSD in Windows 8

    Optimize Drives Schedule - Change in Windows 8
    Last edited by Brink; 03 Aug 2013 at 21:20. Reason: addition
      My System SpecsSystem Spec

  4. #4


    Posts : 18
    Windows 8 x64


    Quote Originally Posted by mwhals View Post
    Never defrag a SSD! They use TRIM instead. Defragging a SSD shortens its life due to all the writes that occur when defragging.
    He's aware of that.

    His complaint was that windows 8 had defragged his SSD automatically.
      My System SpecsSystem Spec

  5. #5


    USA, Idaho
    Posts : 1,062
    Win 8, (VM win7, XP, Vista)


    Quote Originally Posted by Fizban View Post
    Quote Originally Posted by mwhals View Post
    Never defrag a SSD! They use TRIM instead. Defragging a SSD shortens its life due to all the writes that occur when defragging.
    He's aware of that.

    His complaint was that windows 8 had defragged his SSD automatically.
    He probably read it wrong thinking that it defragged the HDD and SSD when actually it trimmed the SSD. . .
      My System SpecsSystem Spec

  6. #6


    Hafnarfjrur IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there
    Windows 8 and 8.1 DO NOT defrag SSD's. - Don't even THINK about it. In any case I often wonder if it's ever worth defragging a normal HDD anyway. If you've moved your OS + programs to an SSD your HDD's will contain essentially USER DATA which probably doesn't change hugely anyway. I really think the time spent in defragging a classical spinner isn't worth while.

    (Virtual Machine disks are a different argument - but the Virtual machine software will have its own routines for defragging Virtual Disks - you don't need to use the standard windows software for this).

    Cheers
    jimbo
      My System SpecsSystem Spec

  7. #7


    BELGIUM
    Posts : 503
    WINDOWS 8.1 x64


    hi guys,

    included my prtscrn that made me worry, saying that C:drive and S:drive (together 2 SSD's in Raid0) where optimized on july 20th.

    Can well be this is nothing, on the other hand, it is Windows 8.1, so BETA and one never knows if bugs are in or not.....

    So i disabled optimization.


    Jeff


    Jimbo,

    i am convinced thtat HHD's need defrag, certainly when the OS is on it. In time computer will slow down, will also slow down when

    there is not enough free space. Just a thought.

    JeffClick image for larger version
      My System SpecsSystem Spec

  8. #8


    Posts : 480
    Windows 8 Pro x64


    Windows 8 erroneously defrags SSDs, indeed. Doesn't look like it's been fixed in Windows 8.1.

    My blog's got only one article in English, but it's about this issue
    Why Windows 8 defragments your SSD and how you can avoid this
      My System SpecsSystem Spec

  9. #9


    Posts : 22,577
    64-bit Windows 10


    Windows 8/8.1 does not defrag SSDs. Only HDDs are defragged. Windows 8/8.1 uses TRIM on SSDs instead. TRIM does not harm a SSD at all. In fact, using TRIM on your SSD every so often as needed actually helps improve your SSD's performance and life span just like defragging a HDD does.

    http://en.wikipedia.org/wiki/TRIM_(SSD_command)

    Perhaps that issue in the article Vadim linked to above was with old first generation SSDs. If I use either command below, my SSD gets trimmed and not defragged.

    defrag C: /O /U /V

    defrag C: /O /L /U /V


    Click image for larger version
    Last edited by Brink; 04 Aug 2013 at 06:17.
      My System SpecsSystem Spec

  10. #10


    Quote Originally Posted by Vadikan View Post
    Windows 8 erroneously defrags SSDs, indeed. Doesn't look like it's been fixed in Windows 8.1.

    My blog's got only one article in English, but it's about this issue
    Why Windows 8 defragments your SSD and how you can avoid this
    Hi Vadim, thanks for this, my dfragsvc is stopped, do you think it still defrags my SSD?
    Click image for larger version
      My System SpecsSystem Spec

Page 1 of 5 123 ... LastLast
Defrag on SSD
Related Threads
SSD & Defrag in Drivers & Hardware
On the subject of SSD disks, and hybrid disks (mine) I saw some posts quite a while back about defragging such disks. As a result of the acute uncertainty back then, I have never defragged my C drive hybrid. (I also have 2 x SATA drives which I do defrag monthly.) Can anybody update me, and...
Defraggler needs to defrag twice? in Performance & Maintenance
Hello everyone, So another forum I am a member of said that Microsoft default maintenance tools like "disk cleanup" and "defrag" don't do the job very well and they were recommending "ccleaner" and "defraggler" I have already been using ccleaner to scan for registry issues but when I use...
why my w8.1 pro want to defrag my ssd? in Performance & Maintenance
Hi why my w8.1 pro want to defrag my ssd? the defrag tool display needs optimation, even my System Reserved :huh::huh: thanks i did check and trim is enabled
Solved Defrag not working in Performance & Maintenance
So I tried to open defrag today for the first time with using Windows 8 and when I click on the application the command prompt opens and closes in about two seconds and then nothing happens. Any ideas on how to fix this issue.
Solved optimize defrag in Performance & Maintenance
I notice I have the C: in the desktop and have reserved besides the C: in the laptop. Does this mean that when I try to recover an image to the desktop containing only the C; I won't be able to? I only have one partition or drive in each.
Defrag and SSD in Performance & Maintenance
Hello Guys, For those of you with a SSD boot drive do you leave defrag switched on or do you disable it. I have a Samsung 840pro and the documentation that came with the drive says that Defrag has to be disabled via their Magician software but on various posts around the internet some people are...
Solved Disk Defrag in W8 in General Support
Should I turn off disk defragment in Windows8 for ssd?
Eight Forums Android App Eight Forums IOS App Follow us on Facebook