Windows 10 freezes for 30+ minutes in Parallels 15 on macOS Catalina

Discussion in 'Windows Guest OS Discussion' started by JamesS39, Mar 16, 2020.

  1. MurrayC2

    MurrayC2 Bit Poster

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    Hi @GeneM1, sorry to hear that!

    For what it is worth, the "disabling TRIM" fix has continued to work with me, on both my Windows 10 Virtual Machines.

    Best of luck in finding a fix! Best wishes,

    Pete
     
  2. edquist

    edquist Bit Poster

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    2
    There is no option "Enable Trim" in my HD-settings. I'm running Win 10 in Parallells Desktop ver. 15.1.4 (47270). Anyone know why?
     
  3. Mike331

    Mike331 Bit Poster

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    @edquist
    This may be because you have a rotating HDD and not an SSD.
     
  4. Mike331

    Mike331 Bit Poster

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    I disabled TRIM like many others here did. Indeed I have no more freezings.

    BUT: Does it mean that with TRIM disabled my SSD will get slower over time? That would be no good.
     
  5. PeterS6

    PeterS6 Bit Poster

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    I have this exact same problem, with all latest OS updates.
     
  6. Chris Mott

    Chris Mott Bit Poster

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    Yes, same problem for me over last few months. Have lost hours of development time. Sometimes waiting 15min with almost-frozen Windows and MacOS, sometimes a couple hours. Maddening. This is a MAJOR bug and should be fixed.
     
    MichalZ3 and PeterS6 like this.
  7. ParallelsU370

    ParallelsU370 Bit Poster

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    Does anyone have a guarantee solution to fix this problem??
     
  8. ChristianS16

    ChristianS16 Bit Poster

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    Hi Mike,

    Parallels TRIM has nothing to do with SSD trim. In Parallels, it just means that it will recover disk space the VM does not need any longer. From Parallels' help:

    "In most cases, the space that the virtual machine takes up on your hard disk expands as you add files and other data, but isn't reduced when you delete data. To set Parallels Desktop to automatically reduce disk space, select Enable TRIM. This option may affect performance on HDD (not SSD) disks."
     
  9. Jean-MarcG1

    Jean-MarcG1 Bit Poster

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    I'm facing a similar issue with my Macbook Pro 16" i7 (16Go / 512Go).
    It seems to be related (for me), with opening files on Mac from a shared folder.
    For example, I use Microsoft Visual Studio to edit my PHP files.
    They are stored on a remote shared folder. If I double-click on one file, it opens in Visual Studio on the Mac side.
    If I double-click on a second one, it opens but much slowly.
    If I open a third one... Parallels shows the colored wheel, and suddenly hangs. CPU usage is OK. Parallels is simply sleeping, and cannot be awaked.
    After waiting several minutes (5 to 30), it suddenly becomes alive.

    So I think, in my case, that this problem is related to the way Parallels manage network files.
    It's waiting for something and stops doing anything else.
     
  10. ||xplorer

    ||xplorer Bit Poster

    Messages:
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    Add one case of sudden Windows 10 VM freeze since today (had been running mostly issue free so far). Killing the parallels process and restarting the VM doesn't seem to work for me (Parallels 15.1.4 on macOS 10.14.6). I basically have to reboot my MBP. Very very very annoying.
     
  11. WaldoN

    WaldoN Bit Poster

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    I am having similar issues. However mine started with macOS 10.13 or so. I had it on my previous iMac Pro, and now on my new Mac Pro. I reinstalled macOS twice - clean. I reinstalled my Parallels VM twice - clean install. Still, once a day to once a week the system (both VM and host) will hang intermittently. In Windows the Task Manager will show 100% SSD usage (but 0MB/s read and 0MB/s write). Host will show spinning beach ball and every minute I might get a click in and the system responds for a second then locks again. Most times this results in a kernel panic and my mac turns off (crashes).

    Since I tried this on two different macs and different installs of Windows and macOS, as well as across 3 different major releases of Parallels, it seems to be some deep rooted issue. I know it is parallels as I ran my system for a month without parallels and it never showed this behaviour. Once I fired up parallels the problems started.

    I will be trying the TRIM option as it definitely seem to be disk related. It feels like a disk I/O timeout happening as apps that are fully in RAM are responsive, the moment I access any disk I/O the system hangs.
     
  12. ||xplorer

    ||xplorer Bit Poster

    Messages:
    37
    I have switched the TRIM option off (did not remember turning it on in the first place, but who knows?). Waiting for my next hang... and touching wood.
     
  13. CHrisTheBiPolarBear

    CHrisTheBiPolarBear Bit Poster

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    Under CPU & Memory Advance settings "Enable nested Virtualisation"
     

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  14. WaldoN

    WaldoN Bit Poster

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  15. CHrisTheBiPolarBear

    CHrisTheBiPolarBear Bit Poster

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    I read it somewhere, tried it and it works for all the latest windows insider previews without they stop responding during first reboot after installation enabled they work. Don't ask me why.
     
  16. TheodK

    TheodK Bit Poster

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    Dear all,
    I just updated OSX to 10.15.6 (wed. 12 august 2020). One of two changes fixes a memory leak that causes kernel panics when using virtualisation software. Could this be the culprit? Hope this update solves the reported freezing and crashing VM's.
    Regards,
    Theo
     
  17. Navitas

    Navitas Bit Poster

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    I am on Parallels 16 (16.0.0 - 48916), with Windows 2004 update running on a 2018 MBP i9 and have this issue too - its just this minute occurring on the Windows 10 VM and all I can do i sit here and wait for it all to unfreeze. Its strange as I click on various menus or right click on the taskbar in Windows and NOTHING happens - however if I am in Windows when it unfreezes then it has a weird few minutes where it performs every action I have tried whilst it was frozen - so its like it all goes in a buffer somewhere and then plays out in the order I tried things once its back up and running again. Unfortunately most of the time I have no choice but to force shut the Mac down to recover from this and start everything back up again - its SO SO SO annoying and Parallels really need to try and fix this bug.
     
  18. Navitas

    Navitas Bit Poster

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    I managed to get Activity Monitor to open whilst the lock up is happening and it is currently showing

    upload_2020-8-18_15-56-39.png
     
  19. Dmitry21

    Dmitry21 Bit Poster

    Messages:
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    I'm having the same issue

    Parallels 16 (16.0.0 - 48916)
    Windows 10 (2004)
    MacBook Pro 16 (2019, i9)
    MacOS Catalina 10.15.6
     
  20. pourpcx

    pourpcx Bit Poster

    Messages:
    3
    I have also faced this issue but now i am able to fix it with a quick scan on my pc.
     
    Last edited by a moderator: Aug 29, 2020

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