As far as your NVRAM goes, pretty much the only entries in NVRAM related to your disk is where the the boot and recovery partitions are located and this info rarely changes from computer to computer. Your disk contents has nothing to do with the SMC. Or deleting the disk resets the things that I mentioned? It's not necessary to reset either of these. I wrote an a short piece on what Resetting the SMC and NVRAM actually does. There's nothing in NVRAM that's personally identifiable and necessary of resetting. The NVRAM sets your pre-boot environment variables and your Find My Mac token. There's nothing in the SMC that has anything to do with how you personally interact with your computer there's no identifiable information. The SMC handles power, battery charging, fan control, etc. The SMC and NVRAM have absolutely nothing to do with software. I want it to be like it just left the factory, at least in the software side. If you applied any firmware updates, you can't roll those back - and it wouldn't be prudent to do so. It doesn't, however, return it to the OS/firmware that it originally shipped with. You can "reset to factory defaults" which is a term used for wiping the custom configurations of your device so that it will behave like it was just removed from the box. There are so many terms used in the question that indicate a misunderstanding of what a "full factory reset" is.įirst off, your MacBook Air (or any computer and not limited to Apple) is not a phone there's no "factory reset." In fact, "full factory reset" is not correct either.
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