high cpu

  1. H

    Very slow Win 11 VM with Creedence Cryptex dmg on desktop

    I have a 2019 iMac with Intel Core i5 that was running a Windows 11 VM with single application. The performance was fine and I was satisfied with this setup for years. I recently updated to the latest OS that my Mac supports, Sequoia 15.5. My VM got incredibly slow and suddenly there are...
  2. Y

    Windows 11 ARM VM takes 100% cpu (4cores 400% in mac) even rebooting and ready-for-login state

    Windows 11 ARM VM takes 100% cpu (4cores 400% in mac) even during windows rebooting and ready-for-login state. After login the cpu usage is the still high even no any app started. The detai list of task manager show no process using much CPU, but performance tab shows 58% cpu usage overall in...
    • YFoneL
    • Thread
    • cpu usage cpu utilization high cpu parallels desktop 20 parallels desktop 20.4.0 performance windows 11 arm vm full cpu usage
    • Replies: 18
    • Forum: Windows Virtual Machine
  3. P

    Problems with macOS Sonoma

    I am running Windows 10 on Parallels Desktop 19.4.0 (54962) on a MacBook Pro 16-inch from 2019. Since having upgraded my Mac to macOS Sonoma I have massive problems on Mac and on the Windows VM: 1. High CPU usage in Windows making it slow and practically unusable. 2. High CPU usage on Mac when...
    • PeterA23
    • Thread
    • 54962 crash high high cpu intel host macbook pro macbook pro 2019 16inch parallels desktop 19 parallels desktop 19.4 parallels desktop 19.4.0 sonoma sonoma host windows 10
    • Replies: 1
    • Forum: Windows Virtual Machine
  4. F

    Macbook fan goes nuts after starting Windows

    Hello, Just by starting Windows 11 in Parallels Desktop 19.2.1 (I'm not running anything there besides Windows itself), makes my macbook fan runs like crazy. If I shutdown Windows and close Parallels they soon get back to silent. Before Parallels 19 I never noticed such high speed fan. If I let...
  5. B

    High CPU usage with "Hide Menu Icons"

    Hi everyone, I'm quite enjoying Parallels Toolbox as well as Parallels itself however, I have noticed one strange issue with "Hide Menu Icons". Ideally, I would like to keep this extension as it's quite nice to have and cleans up my top-bar without having to install another 3rd party app...
  6. C

    prl_naptd process is consuming a lot of CPU. It's overheating my mac.

    Is there a way for this process not to consume the CPU so much? I depend on Parallels to do my job, but MAC is overheating.
  7. A

    Microsoft Edge + Parallels 16.1 = VM Crash

    Host OS: BigSur 11.0.1 (public release) Gueset OS: BigSur 11.0.1 (public release) Application: Microsoft Edge (release or Canary) Issue #1: After visiting certain websites, exporting bookmarks, etc. will crash to desktop. Issue #2: CPU usages goes from 75-100% when using Edge (this does...
  8. B

    [SOLVED] The agent (pma_agent_ui process) takes high CPU.

    Hello, I'm the Apple Specialist of a University, and we have a lot of Mac Computers. Some of the Mac computers have the latest OS (10.15 Catalina), most of them have the previous OS (10.14 Mojave). Since the version 8.0.0.94 of the Agent, the Process "Parallels Mac Management for Microsoft...
  9. I

    Poor performance of Mac host when running Windows VM

    I have an iMac running OSX 10.12.6 Sierra and Parallels 10.4.0 (29337) to run a Windows 7 Pro VM. The iMax has a 2.7GHz Intel Core i5 processor and 8GB of RAM. Parallels (or the VM, I am not sure which) is allocated 2 CPUs and 4GB RAM. From time to time the iMac grinds to a halt and it's due to...
  10. R

    prl_naptd process eats to much cpu

    Hi everyone! I've noticed this weird process in the activity monitor: why it uses so much resources and how to fix it ? Thanks.
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