Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: David Brooks Newsgroups: alt.computer.workshop,comp.sys.mac.system,uk.comp.sys.mac Subject: Re: What does "Reinstall macOS" do, exactly? Date: Wed, 21 Aug 2024 20:45:44 +0100 Lines: 71 Message-ID: References: <66c60f24$0$1895503$882e4bbb@reader.netnews.com> <66c63df5$0$2385532$882e4bbb@reader.netnews.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net TjZK18FJEx3TLJ5xe0Hs8wg0EQevAiRk8sB8AV6YXkof45IyNs Cancel-Lock: sha1:K4XemgsKFk65oSaGFotD38s5Qo0= sha256:zMVEDtPqQIqijx315SmX+Y9UnAZq9rZ7y4AEB3m32D4= User-Agent: Mozilla Thunderbird Content-Language: en-GB In-Reply-To: <66c63df5$0$2385532$882e4bbb@reader.netnews.com> Xref: csiph.com comp.sys.mac.system:144590 uk.comp.sys.mac:178899 On 21/08/2024 20:20, Snit wrote: > On Aug 21, 2024 at 11:17:16 AM MST, "David Brooks" wrote > : > >> On 21/08/2024 17:00, Snit wrote: >>> On Aug 21, 2024 at 12:42:28 AM MST, "David Brooks" wrote >>> : >>> >>>> On 21/08/2024 00:52, Snit wrote: >>>>> On Aug 20, 2024 at 2:57:07 PM MST, "David Brooks" wrote >>>>> : >>>>> >>>>>> On 20/08/2024 22:46, Charlie Glock wrote: >>>>>> >>>>>>> Anyway, getting back to your question, the only reasonably sure method for >>>>>>> eliminating nasty stuff >>>>>>> that might be left on an hdisk is to perform something like a DOD wipe. >>>>>> >>>>>> Thank you. >>>>>> >>>>>> How can one do that on an Apple Mac? >>>>> >>>>> Apple > System Settings > General > Transfer or Reset >>>>> >>>>> You will see the option to "Erase all Content and Settings..." >>>> >>>> Sadly, not on THIS iMac running macOS Ventura. :-( >>>> >>>> See: https://i.ibb.co/nDgWy3j/Screenshot-2024-08-21-at-08-40-07.png >>> >>> It should work on Ventura: >>> >>> https://support.apple.com/en-us/102664 >>> >>> But not on Intel. This is what Apple suggests if it does not work: >>> >>> https://support.apple.com/en-us/102773 >>> ----- >>> 1) Back up or transfer your files >>> 2) Sign out of iTunes >>> 3) Sign out of iCloud >>> 4) Sign out of iMessage >>> 5) Unpair Bluetooth devices (optional) >>> 6) Erase your Mac >>> * Shut down your Mac. >>> * Start up from macOS Recovery, then use Disk Utility to erase your >>> Mac. For details, follow the steps to use Disk Utility to erase >>> your Mac. >>> When done, quit Disk Utility but don't restart your Mac. >>> ------ >>> >>> They give details for what I numbered 1-5 at the link. >> >> Thank you, Snit! > > Of course. I wish there was more discussion of tech in here. Happy to help. >> >> Whenever I have followed this procedure (many times whilst >> experimenting!) I have NOT signed out of iCloud or iMessage beforehand. > > You do not need to, but it makes things easier down the road. You can only > have so many machines tied to the account at a time (I think). >> >> How might my failure to do so have impeded a satisfactory erasure. > > It would be erased but Apple would think those devices were still on the > system and it might lead to confusion or a limit. Understood. Many thanks. 🙂