Windows 10: What is the .NET Optimization thing and why is it eating my cpu?

Discus and support What is the .NET Optimization thing and why is it eating my cpu? in Windows 10 Ask Insider to solve the problem; I haven’t tried any of the fixes because I don’t want to do anything yet without the supervision of the the tech expert in my home, but it’s taking... Discussion in 'Windows 10 Ask Insider' started by /u/vFaos, Aug 7, 2020.

  1. /U/VFAOS
    /u/vFaos Win User

    What is the .NET Optimization thing and why is it eating my cpu?


    I haven’t tried any of the fixes because I don’t want to do anything yet without the supervision of the the tech expert in my home, but it’s taking 100% of my CPU power right now. I’ve run all virus scans and it isn’t showing any problems. I recently switched from Mac to windows and so this is a first.

    submitted by /u/vFaos
    [link] [comments]

    :)
     
    /u/vFaos, Aug 7, 2020
    #1
  2. KRISTIANP
    kristianp Win User

    Prevent .NET Runtime Optimization Service from running on battery?

    When I opened my laptop this morning, it had rebooted itself (after installing updates). Now the .NET Runtime Optimization Service (ngen?) is using quite a bit of CPU while the computer is on battery. I'm wondering, is there any way to ask Windows to defer these tasks until the laptop is plugged in? I had the laptop plugged in overnight but 30% of my battery is gone after less than an hour of usage, which is not the usual situation.

    My computer wasn't idle while it was doing this, so I assume its compiling high-priority assemblies after a .Net Framework update from this article.

    I checked the windows update history, and it had installed a cumulative update overnight while plugged in. (https://support.microsoft.com/en-ie/help/4038788/windows-10-update-kb4038788). I wish windows would run .net optimisation as part of that process instead of waiting for me to start using the laptop on battery.


    What is the .NET Optimization thing and why is it eating my cpu? sS1F0.png
     
    kristianp, Aug 7, 2020
    #2
  3. MUHIB AL HASAN
    Muhib Al Hasan Win User
    Turned off delivery optimization but still it eats my bandwidth

    So I turned off delivery optimization from settings and did everything I can find on the internet to stop my background data usage but there's still a service host with delivery optimization that's eating all my bandwidth.

    HELP!
     
    Muhib Al Hasan, Aug 7, 2020
    #3
  4. CHARLESSPALDING
    CharlesSpalding Win User

    What is the .NET Optimization thing and why is it eating my cpu?

    why wont system reserve optimize?

    hello there! i've been trying to defrag my desktop, its an emachine, was bought 5 or 6 years ago i believe and it also has windows 10 on it as well. there is a thing on the defrag list called system reserved and has 63% fragmentation when it click analize,
    but whe i click optimize it runs really fast and says 34% and that it needs to be optimized, not really sure what to do with it so hoping to get some help on why it wont optimize or if whatt ever system reserved is can be optimized
     
    CharlesSpalding, Aug 7, 2020
    #4
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What is the .NET Optimization thing and why is it eating my cpu?

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