Open VMware Fusion > . If you are running version 8.x or 10.x on macOS 11 (Big Sur) or later, upgrade to Fusion 12.2.5 or later . KB-84273 is often a symptom of version rot. VMware has stopped supporting kernel extensions in favor of the Apple Hypervisor framework on newer versions.
Click , then reboot.
As a Mac user who occasionally needs to run Windows applications, I've tried various solutions over the years. But none have impressed me as much as VMware Fusion, particularly with the recent updates addressed in KB-84273. vmware fusion kb-84273
There is no "setting" to turn off this error; you must match the VM to your hardware. Open VMware Fusion >
If you have ever launched VMware Fusion on your Mac only to be greeted by a cryptic error message stating “Unable to open kernel device \.\pipe\vmx86” or “Failed to initialize monitor device,” you are not alone. These errors, often documented under VMware’s internal tracking ID , represent one of the most common and frustrating hurdles for virtualization on macOS. VMware has stopped supporting kernel extensions in favor