Memory integrity in windows 11 pro guest OS / on or off?

Discussion in 'Windows Guest OS Discussion' started by FabianS7, Sep 7, 2022.

  1. TejK

    TejK Bit Poster

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    Our recommendation remains that for the best protection people keep features on." Memory Integrity helps to ensure that drivers being installed onto the operating system are trustworthy and protects your system from attacks using malicious code, while VMP provides core virtual machine services.
     
  2. NigelGB

    NigelGB Bit Poster

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    TejK
    Sorry I don't understand what you mean by your reply. You're saying nothing. There's no suggested solution.
     
  3. OlivierS2

    OlivierS2 Bit Poster

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    I can see in both screenshots that you don't have the nested virtualization option altogether. Maybe you're running on Apple Silicon (M1, M2) ? Or maybe on the ocntrary you have older hardware ?
     
  4. OlivierS2

    OlivierS2 Bit Poster

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    Well, I switched to the Parallels Hypervisor, and memory integrity then turns on. However the performance is terrible, makes the VM barely usable. Turning off memory integrity under the Parallels Hypervisor solves the performance issue.

    I guess nested virtualization has too much of a negative performance impact, at least with my setup. Giving up at this point, not worh it for me.

    BTW for those out there running with Parallels Hypervisor : until one year ago I was using it on my MBP, and regularly I would open the laptop in the morning just to find the battery fully drained ; the computer would in fact wake up during sleep for no apparent reason (according to the logs) and not go to sleep again. Switching to the Apple hypervisor solved the issue.
     
  5. NigelGB

    NigelGB Bit Poster

    Messages:
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    Hi OlivierS2,
    I already posted the details of my environment. Hardware details below. You can't get much newer Intel Silicon than that.
    Only a couple of years ago I was using Parallels Nested Virtualisation to test Ubuntu servers running Docker on my Macbook Pro 2013.
    System:
    - Macbook Pro 13" 2020 4 Thunderbolt 3 Ports
    - Processor: 2GHz Quad-Core Intel Core i5
    - Graphics: Intel Iris Plus Graphics 1536 MB
    - Memory: 16GB 3733 MHz LPDDR4X
     
  6. OlivierS2

    OlivierS2 Bit Poster

    Messages:
    6
    Researching this issue a bit:
    - you need the pro or business edition of parallels (https://kb.parallels.com/116239)
    - yesteryear you would need to set the VM type properly (e.g. "Windows 11" in the general tab of the VM configuration), worth checking out (https://kb.parallels.com/123844)
    - I haven't been able to test with PD 17 as you have, I have PD 18, but I doubt this should have an impact
    At this stage I would open a case with Parallels' support.
     
  7. NigelGB

    NigelGB Bit Poster

    Messages:
    8
    Well that sucks.
    I've always had the standard desktop version and I used to use nested virtualisation all of the time for my server testing.
    So they've removed functionality and made it only available in the more expensive versions.
    Completely inexcusable.
    Guess it's time to look at VMWare Fusion instead.

    Thanks for making that clear.
     
  8. OlivierS2

    OlivierS2 Bit Poster

    Messages:
    6
    FYI I experienced terrible performance with nested virtualization, and I believe this should be the same even with other products. In other words, it's not useful for everyday use, only for testing / researching. So I would suggest to not spend any money for that unless you know you need it.
     

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