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Using spctl Command

You can disable the user approval requirement for Parallels Desktop kernel extensions using the spctl command on a Mac. This can be done either via booting into macOS Recovery or while preparing NetBoot/NetInstall/NetRestore images. The command is as follows:

spctl kext-consent add 4C6364ACXT

The 4C6364ACXT value in the example above is the Parallels Team ID. The command disables User Approved Kernel Extension Loading for Parallels Desktop, so user consent to load the extensions will not be required.

Please note that if you reset NVRAM after executing the spctl command, the Mac reverts to its default state with User Approved Kernel Extension Loading enabled. To prevent unauthorized changes to NVRAM, you can set a firmware password on the Mac.