Windows 10: Prefetch / superfetch / hibernation - Safe for SSDs?

Discus and support Prefetch / superfetch / hibernation - Safe for SSDs? in Windows 10 Customization to solve the problem; I've heard mixed things from multiple websites whether it's a bad thing or not, so I thought I'd just ask here. I'm wondering if it's completely safe... Discussion in 'Windows 10 Customization' started by Tanner Gremmert, Mar 8, 2021.

  1. Prefetch / superfetch / hibernation - Safe for SSDs?


    I've heard mixed things from multiple websites whether it's a bad thing or not, so I thought I'd just ask here.


    I'm wondering if it's completely safe to have it enabled. It was enabled by default I disabled it, and I thought it was extremely bad for the lifespan of them, since prefetch constantly writes to the system drive In my case the SSD.


    The SSD I have: Samsung MZVLB512HBJQ-00A00

    :)
     
    Tanner Gremmert, Mar 8, 2021
    #1

  2. Windows 10 Prefetch and Superfetch

    OK, I recently upgraded by cloning my OS (Win 10 Pro) from an HDD to an SSD.

    I have been reading articles about prefetch and superfetch and how they are with SSd's.

    Well, I believe that Superfetch was indeed disabled by Win 10 when it realized I was now on an SSD.

    Being that there is NO Superfetch anywhere in the Services.

    Now, as to Prefetch, set the registry key to disabled and restarted. Items still kept showing up in the prefetch folder. This even after I had deleted them, or at least the one the system allowed me to do so to.

    Again, left it disabled in registry and restarted after the deletion. And as soon as I could went to the prefetch folder and right before my eyes items kept appearing.

    So, I decided to at least maybe benefit from the fact it seems hell bent on using prefetch and set value in registry to 2 so as to only prefetch boot related items.

    Anyone here know what the you know what is going on here? Because from what I can see, YES Windows 10 did disable Superfetch. But seems a bit iffy on prefetch. Any help here would be great.

    Thanks.
     
    BlackDragon5, Mar 8, 2021
    #2
  3. A123 Win User
    Should Superfetch and Prefetch be disabled in Windows 10 Pro?

    Should SuperFetch and Prefetch be disabled in the latest Windows 10 Pro that protects against Meltdown? I checked services and SuperFetch is running. I do not know if Prefetch is running, but my guess is that Prefetch is running. The pc is running with
    Windows 10 Pro on a fast SATA ssd. A hdd contains user data. Does the mix of a ssd with a hdd require SuperFetch and Prefetch for the latest Windows 10 Pro update that protects against Meltdown?

    **Moved from: Windows / Windows 10 / Windows settings**
     
    A123, Mar 8, 2021
    #3
  4. Prefetch / superfetch / hibernation - Safe for SSDs?

    Windows 10 Prefetch / SuperFetch is used, although an ssd is used.

    Hello everybody,

    shouldn't Windows automatically disable Prefetch and SuperFetch when using an SSD?
    Although the SSD is the only drive, the registry key "EnablePrefetcher" has the value 3, the service "Sysmain" is started automatically and the folder "C:\Windows\Prefetch" is used.
    Even after I run the Windows Experience Index (winsat) valuation this has not changed.

    Is it "by design" that it is no longer deactivated when using an SSD?

    Thanks and greetings,
    Martin
     
    Martin Fessler, Mar 8, 2021
    #4
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Prefetch / superfetch / hibernation - Safe for SSDs?

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