Known issues with macOS 11 Big Sur and Parallels Desktop for Mac

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Parallels Engineering team is testing Parallels Desktop for Mac and other products against macOS Big Sur Beta to ensure full support of macOS Big Sur as soon as it is released.

Here is the list of known issues we are working on with the available workarounds that we have tested in our lab.

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Known issues

Issue Workaround
macOS Big Sur as a host operating system

Parallels Desktop cannot be started or installed on macOS Big Sur Beta.

Fixed in 16.0.0 (Download)

 2 Mac with macOS Big Sur Beta 5 installed crashes while starting a virtual machine Fixed in 16.0.1 (Download)
 3 Parallels Desktop user interface hangs when opening Control Center or virtual machine configuration.

Fixed in 16.0.0 (Download)

 4 Parallels Desktop hangs when quit. Fixed in 16.0.0 (Download)
 5 Graphics artifacts in the background with virtual machines running in Coherence mode Fixed in 16.0.0 (Download)
 6   "Unable to load the Parallels Driver" when starting a virtual machine after upgrading macOS to Big Sur.
  1. Quit Parallels Desktop.
  2. Go to System Preferences > Security & PrivacyGeneral, then click Allow button and enable (re-enable) Parallels International GmbH kernel extension.
  3. Restart the Mac and start Parallels Desktop and virtual machine again.
 7 "Deleting snapshot..." window hangs on every snapshot deleting.
Fixed in macOS Big Sur Beta 5
 8 Parallels Desktop UI crashes after clicking on "VM is ready" at the end of the VM installation.     Fixed in 16.0.0 (Download)
 9 Cannot type certain symbols in virtual machine (examples: 1, 2, T, Y, etc.) Fixed in 16.0.0 (Download)
 10 Parallels Tools are not automatically installed in a Boot Camp virtual machine. From the menu bar click Actions menu > Install Parallels Tools. Proceed with the installation and restart the virtual machine to finish the process.
 11  Virtual machine crashes on Windows login. Fixed in 16.0.0 (Download)
macOS Big Sur as a virtual machine
 1 Cannot upgrade the existing macOS VM to macOS Big Sur.

Fixed in macOS Big Sur Beta 4

Increase disk size of the existing macOS VM to at least 128 GB (as per KB 112119) before upgrading it.

 2 Cannot install macOS Big Sur virtual machine from .app file Fixed in 16.0.0 (Download)
 3 Installation Assistant names the new macOS as 10.16. No workaround yet.
 4 Cannot install macOS Big Sur virtual machine from Recovery. No workaround yet.
 5 After Parallels Tools reinstallation macOS Big Sur VM gets stuck in a black screen. Fixed in 16.0.0 (Download)
 6 1024x768 resolution in macOS Big Sur VM No workaround yet.
 7 Big Sur Beta 5 VM hangs during installation Fixed in macOS Big Sur Beta 6




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