Mac Os Big Sur Parallels Desktop

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MacAdmins need to start testing the new OS right way. Running the new os in a virtualized environment is the way to go. The only problem is, sometimes the new OS will not install on the current version of VMware Fusion or Parallels Desktop. Many MacAdmins have already jumped in to find out if macOS Big Sur will install on Fusion or Parallels. Nov 20, 2020 Parallels Desktop 16 for Mac Fully Supports macOS Big Sur, Delivers Its Most Seamless and Robust Windows-on-Mac Experience PRESS RELEASE GlobeNewswire Nov. 20, 2020, 10:00 AM. Jun 23, 2020 I installed the Big Sur beta on a 2018 Mac Mini (host OS) and found that the 't' and 'y' keys don't work in any Parallels VMs. I noticed that right away on a Windows 10 VM and also found that the keys didn't work on a Linux live boot CD. Creating a custom entry send-key for 't' and 'y' does work - had to do that to enter a password.

Guest blog post from Dmitry Geynisman, Product Manager at Parallels

Downloaded the public beta of Big Sur and let Parallels create an.iso of it. (Host machine is a 2019 16' MBP with 16GB RAM and 512GB SSD i.e., base 16' model, running macOS Catalina 15.5.6). Installation of Big Sur as a VM took a while but completed successfully. Afterwards I installed Parallels Tools. After upgrading a Mac to Big Sur, the “Network initialization failed” message appears when starting a virtual machine. Shut down the virtual machine and quit Parallels Desktop. Open Terminal (Applications Utilities Terminal), copy and paste the following command, and press Enter.


You may have seen these messages from both macOS and Parallels Desktop for Mac:

No worries, in this blog post I will explain the situation in detail. First, I will give you a relatively short answer about why Parallels® Desktop uses system extensions, and then more details will follow.

  1. Parallels Desktop uses a hypervisor technology to create a high-performance virtual machine, so you can run Windows, Linux, macOS, and other operating systems inside it.
  1. There are 2 types of hypervisors on macOS that Parallels can use: Apple’s built-in hypervisor or Parallels’ proprietary hypervisor. Parallels proprietary hypervisor is implemented as a system extension.
  1. System extensions in macOS enable developers to integrate deep into the macOS system to achieve better performance or provide some unique functionality.
  1. When Parallels Desktop attempts to load the Parallels hypervisor system extensions, macOS prompts a user to ‘allow’ this. System extensions have elevated privileges and if they are coming from a non-trusted source, can be used maliciously. So, it is a security precaution, similar to how your phone apps ask to access your camera.
    If you downloaded Parallels Desktop from and the system extension is signed by “Parallels International GmbH”, then you are in good hands.
  1. Parallels recommends you use Apple’s built-in hypervisor. That way macOS won’t bother you with System Extension approval or the need to reboot. However, if you need to use the Nested Virtualization feature or a specific workload where Parallels hypervisor shows higher performance scores, you may keep using Parallels hypervisor.
  1. To change a hypervisor type, first, you need to shut down or stop your virtual machine. Note that for this you might need to start or resume the virtual machine and approve Parallels hypervisor system extension.
    When your VM is stopped, go to VM configuration > Hardware > CPU & Memory > Advanced Settings > click on the “Hypervisor” dropdown > select “Apple” or “Parallels” respectively.
    If you have multiple virtual machines, you may need to change the setting for every one of them.

Now, if you’re not bored yet, I’d love to tell you more about this story.

For more than a decade, Parallels developed its proprietary drivers (aka system extensions) for running Windows and other OSes on top of the macOS. These drivers made Parallels Desktop the best virtualization solution, the fastest, and the most technologically advanced.

At the same time, for several years, Apple has been moving towards making macOS the most secure and reliable desktop OS (and I should say, Apple succeeded in many ways). One of the key aspects is not to let developers intrude on the OS kernel by loading those extensions (aka “kexts”), as those who have access to the kernel can do things at the very heart of your Mac, which may prove quite dangerous. In order to do that, Apple must replace 3rd-party kernel extensions with the native system APIs that ultimately enable the same product features, and that is massive engineering work even for such a big enterprise as Apple.

Since 2017, with the macOS High Sierra 10.13 release, Apple started to block 3rd-party kexts automatically, and users have had to enable them manually since. At that time, we published this blog post that can tell you even more about Parallels Desktop using system extensions.

In March 2020, with the release of macOS Catalina 10.15.4, Apple started to warn users that some of their apps (that use deprecated system extension) would “be incompatible with a future version of macOS” (read: with macOS Big Sur).

At WWDC20, Apple was quoted as saying that “System Extensions improve the reliability and security of macOS, and deprecated kernel extensions will not load by default in macOS Big Sur”. Eventually, to make Parallels Desktop fully compatible with the new macOS Big Sur 11.0, Parallels Engineering has gone through years of engineering work of rebuilding Parallels Desktop and its features using the new macOS system APIs. This extensive and time-intensive development resulted in the all-new Parallels Desktop, explicitly designed to work and integrate with new macOS Big Sur technologies, and at the same time, deliver performance and productivity improvements to benefit Parallels Desktop customers.

This scheme below visually describes the difference between the default Parallels Desktop modes on the corresponding macOS version. The old Parallels Desktop design using Parallels system extensions is shown on the left, and the newly-invented Parallels Desktop 16, using macOS Big Sur APIs, is shown on the right.

For now, our team continues to work on supporting both Parallels and Apple hypervisors and continues collaborating with Apple on implementing the rest of Parallels Hypervisor features to Apple Hypervisor. We recommend using Apple hypervisor, and if you notice any difference between Apple and Parallels hypervisors for your use case, please let us know.

Download a free trial of Parallels Desktop for Mac and try it out yourself.

[November 20, 2020]

BELLEVUE, Wash., Nov. 20, 2020 (GLOBE NEWSWIRE) -- Parallels® (, a global leader in cross-platform solutions and creator of industry-leading software for running Windows applications on a Mac®, today announced that Parallels Desktop® 16 for Mac version 16.1.1 ( now fully supports macOS® Big Sur as both a host and guest operating system (OS). Note that currently available versions of Parallels Desktop cannot run virtual machines on Macs with the Apple M1 chip. Parallels Desktop 16 for Mac integrates the largest design update of Apple’s desktop operating system since the debut of OS X, bringing increased graphics performance; and a variety of new integrated features that provide customers with the best Windows-on-Mac experience ever.

“Fully integrating macOS Big Sur is an exciting new chapter for Parallels Desktop and will bring an even more robust experience to our customers,” said Nick Dobrovolskiy, Parallels Senior Vice President of Engineering and Support. “Parallels Desktop 16 for Mac adds innovative new capabilities including 3D support in Metal on macOS Big Sur, faster DirectX and additional performance improvements. Parallels Desktop makes it easier than ever to run every macOS and Windows applications, so users are able to engage with anyone on any device, anywhere.”

New Feature Highlights of Parallels Desktop 16 for Mac:

  • DirectX 11 and OpenGL 3: Up to 20 percent faster DirectX 11 and improved OpenGL 3 graphics in Windows and Linux.
  • Increased battery life: Stay productive on the go with up to 10 percent longer battery life when Windows runs in Travel Mode.
  • Automatically reclaim disk space: Virtual machines (VMs) can be set to automatically return unused disk space when shutting down.
  • New multi-touch gestures for Windows apps: Use smooth zoom and rotate Trackpad multi-touch gestures in Windows apps.
  • Enhanced printing: Print on both sides and use more paper sizes, from A0 to envelope.
  • See video demonstrations of new Parallels Desktop 16 features on macOS Big Sur: Select here to watch the new features highlights video.

Experience 14+ Years of Innovations and Timeless Features

Parallels Desktop 16 for Mac brings customers more than 14 years of innovations, including many history-making new features and high-performance firsts, resulting from Parallels’ relentless commitment to deliver the best-possible Windows-on-Mac experience. Examples include launching the world’s first virtualization software for Mac that runs Windows on Mac without rebooting in 2006; Coherence™ Mode, which provides the option of running Windows invisibly in the background while using Windows apps in their macOS environment with native Mac gestures, in 2007; seamless integration of Dropbox, iCloud and OneDrive cloud services in 2015; and support for DirectX 11, 10 and 9 on Apple Metal in 2019. Now, in 2020, Parallels Desktop 16 reinvented itself for macOS Big Sur to use native Mac virtualization without loading any deprecated kernel extensions.

Parallels Desktop 16 for Mac Pro Edition

The #1 selling version of Parallels Desktop is Parallels Desktop Pro Edition. It is a more powerful, feature-rich and flexible solution than the Standard Edition yet simple to use. Parallels Desktop Pro Edition makes it easy for anyone to enjoy maximum productivity. New and key Pro Edition features include:

  • CPUs and RAM: Assign up to 32 vCPUs and 128 GB vRAM for each VM.
  • Microsoft Visual Studio plug-in: Visual Studio integration simplifies testing applications across operating systems.
  • Create and name custom networks (new): Name your custom networks for more organized and productive testing.
  • Nested Virtualization: Run and test Microsoft Hyper-V based virtual machines in your Parallels Desktop virtual machine.
  • Command Line: Rich command line interface (prlctl and prlsrvctl) allows flexible work automatization.
  • Vagrant, Docker, and Jenkins Pugins: Complimentary Vagrant, Docker and Jenkins plugins/providers for developers.
  • Linked Clones: Make a new VM from a snapshot of the exiting VM. The linked clone occupies only a fraction of disk space that is used by the parent VM, as it reuses disk sectors that are the same for both VMs.
  • Archive a VM right in Control Center: Pro users tend to have many virtual machines which occupy a lot of disk space. In-place archive right from Parallels Desktop Control Center, with the ability to manage the configuration of an archived VM, brings unique convenience.
  • Prepare for transfer (new): Export a VM in a compressed format as a solid file for easier and faster upload and transfer to new hardware.
  • 50+ features: More than 50 useful and time-saving features are included in the Pro Edition.

Parallels Desktop 16 for Mac Business Edition

New Parallels Desktop 16 Business Edition features, which are in addition to all Pro Edition features, include:

  • Corporate VM provisioning: Easily configure VMs with preinstalled applications to upload and host for employees to securely download and run on their Mac devices.
  • Upgrade control: Centralized administration provides flexible controls to manage access to new Parallels Desktop updates, new feature releases, upgrades and new macOS releases.
  • Passwordless update: Administrator credentials are no longer required for Parallels Desktop updates, making it easier for IT and users to keep it current even when users are not admins on their Mac devices.
  • Easy installation on macOS Big Sur: Parallels Desktop installation on macOS Big Sur does NOT require approval of system extension, so installation is fast, seamless and does not require rebooting your Mac.

How to Easily Install Windows 10 in Parallels Desktop
The Installation Assistant in Parallels Desktop makes it simple to install Windows 10 on your Mac— and does not require you to purchase Windows beforehand. Windows installation scenarios in Parallels Desktop include:

Big Sur Mac Os Wallpaper

  • You just installed Parallels Desktop on your Mac. It will automatically detect that you do not have Windows and offer to download it from Microsoft at no cost and install it. Later, you can decide to keep using Windows and purchase a product key from Microsoft.
  • You want to move Windows, its applications, and your files from a physical PC into a Parallels Desktop VM on your Mac.
  • You want to add a Windows 10 VM to Parallels Desktop.
  • You want to upgrade an existing Windows 7 or 8 VM to Windows 10.
  • You have Windows in a Boot Camp partition and want to run it simultaneously with macOS without rebooting or migrate it into a VM and reclaim the disk space back to macOS.
  • You want to add Microsoft’s preconfigured Windows VM test environments for Microsoft Edge and Internet Explorer.

For details, read the “How to Install Windows 10 in Parallels Desktop for Mac” blog post. Additionally, Parallels® Desktop 16 subscribers receive complimentary concurrent subscriptions to Parallels Toolbox for Mac and Windows and Parallels Access, which dramatically simplify daily computing life.

Availability and Pricing

All editions of Parallels Desktop 16 for Mac (Standard Edition, Pro Edition and Business Edition) are available for purchase either online at (which also offers free full-featured 14-day trials for new users) or from retail and online stores worldwide. Parallels Desktop subscriptions include complimentary concurrent subscriptions to Parallels Toolbox for Mac and Windows and Parallels Access, which are also separately available to all PC and Mac users as standalone products for free trials and subscriptions.

Current Parallels Desktop for Mac customers (any edition) can get upgrade pricing for Parallels Desktop 16 online at New customers can download free trials and purchase at Pricing details follow below:

Recommended Retail Price (RRP)

Parallels Desktop 16 for Mac

  • Upgrade from any edition to a perpetual license – US$49.99
  • New subscription – US$79.99 per year
  • New perpetual license – US$99.99

Parallels Desktop for Mac Pro Edition

  • Upgrade from any edition – US$49.99 per year
  • New subscription – US$99.99 per year

Parallels Desktop for Mac Business Edition

  • US$99.99 per year

KB Parallels: Install MacOS Big Sur In A Virtual Machine With Parallels ...

About Parallels

Parallels is a global leader in cross-platform solutions that make it possible and simple for businesses and individuals to use and access the applications and files they need on any device or operating system. Parallels helps customers take advantage of the best technology out there, whether it’s Windows, Mac, iOS, Android or the cloud. Parallels solves complex engineering and user-experience problems by making it simple and cost-effective for businesses and individual customers to use applications wherever they may be—local, remote, in the private datacenter or in the cloud. Parallels, a business unit of Corel, has offices in North America, Europe, Australia and Asia. Visit for more information.

About Corel
Corel products enable millions of connected knowledge workers around the world to do great work faster. Offering some of the industry's best-known software brands, we give individuals and teams the power to create, collaborate and deliver impressive results. Our success is driven by an unwavering commitment to deliver a broad portfolio of innovative applications—including CorelDRAW®, ClearSlide®, MindManager®, Parallels® and WinZip®—to inspire users and help them achieve their goals. To learn more about Corel, please visit

Media Contacts
John Uppendahl, VP of Communications, [email protected], +1 425 282-1734
Ryan Donough, Burson Cohn & Wolfe, [email protected], +1 415 403-8311

* Performance measurements, conducted by Parallels engineers, compared results from running a prerelease version of Parallels Desktop 16 to results from running a released version of Parallels Desktop 15. Performance will vary based on Mac hardware configuration, usage, system configuration and other factors.

© 2020 Parallels International GmbH. Parallels, Parallels logo, Parallels Access, and Coherence are trademarks or registered trademarks of Parallels International GmbH in Canada, the United States and/or other countries. CorelDRAW, MindManager, and WinZip are trademarks or registered trademarks of Corel Corporation in Canada, the United States and/or other countries. ClearSlide is a registered trademark of ClearSlide Inc. in Canada, the United States and/or other countries. Apple, iCloud, iPad, iPhone, Mac, MacBook Pro, macOS, Metal, and Touch Bar are trademarks of Apple Inc. All other company, product and service names, logos, brands and any registered or unregistered trademarks mentioned are used for identification purposes only and remain the exclusive property of their respective owners. Use of any brands, names, logos or any other information, imagery or materials pertaining to a third party does not imply endorsement. We disclaim any proprietary interest in such third-party information, imagery, materials, marks and names of others.

MacOS Big Sur And Parallels Desktop Page 11 Parallels Forums

A photo accompanying this announcement is available at

A video accompanying this announcement is available at

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