> On 17 Nov. 2016, at 12:32 pm, Marcus F Harris <[email protected]> wrote:
> I mustn't spend anymore time dissembling it Ronni. I'd like to delete the > system and reinstall. > Can you point me in the right direction to do this please. Hi Marcus, Probably a "Erase & Reinstall Sierra” is required. But, you ‘might’ correct the problem with just a "Reinstall macOS Sierra" If Sierra itself is the problem, you’ll need to install it anew. I’ll give you instructions for both A) & B)and you can choose which way you wish to proceed. A) I was going to suggest perhaps you try first just to “Reinstall macOS” (not a “Erase & Reinstall Sierra”) You can do this without affecting your files and settings. For this to work in macOS Recovery, you must be connected to the Internet. 1. You need to remove any existing “Install macOS Sierra” application from the Mac. 2. Boot into macOS Recovery Partition Hold down Command-R at startup until the Apple logo appears to see emergency mode. macOS Recovery gives you four choices: 3. Select “Reinstall macOS” Click the Wi-Fi icon at the top right of the screen and choose a network. Enter the network’s password, if necessary. Select Reinstall macOS, and then click the Continue button. The Sierra installer data—roughly 5 GB downloads over the Internet from Apple’s servers; once the download is finished, installation proceeds. Be prepared for the download to take anywhere from 20 minutes to several hours, depending on your connection; installation will then take another 15 to 30 minutes. — During installation your Mac will restart a few times, sometimes you won’t hear a start up chime the screen will just be black. Let the installation process complete - don’t interrupt it! — After your computer boots into mac OS Sierra 10.12 Perform Post-installation Tasks: A) Respond to Immediate Questions Among the most common questions are requests for your user account password or Apple ID password. For example, certain apps may once again need an administrator’s authorization to make changes to your data, and various apps that use your Apple ID (including iTunes and iBooks) may need you to sign in again. Check System Preferences > iCloud to make sure you’re signed in to iCloud (and with the correct Apple ID). Do the same in iTunes (Account > View My Account) and the App Store (Store > View My Account). NOTE: Make sure “iCloud Drive” in NOT activated! (unless you wish to use it; you can set it up at a later date if needed) B) The next thing you should do is to update macOS itself (and any other crucial Apple software) to the latest version. Sometimes Apple releases bug fixes and security updates almost immediately after a major upgrade, and if any such urgent updates are available, it’s in your best interest to install them right away. C) Review the Incompatible Software Folder If the Sierra installer encounters any known incompatibilities, it moves the problematic software to an Incompatible Software folder and explains what it moved on one of the final screens of Setup Assistant. (After Setup Assistant quits, you can find the Incompatible Software folder at the top level of your startup disk, at the top level of your home folder, or even in both places, depending on the location of the soft- ware that was disabled.) D) Deal with Other Surprises Apple Mail: The first time you launch Mail, a window informs you that it’s “upgrading” your mail database. This step should take no more than a few minutes, and is necessary because the Sierra version of Mail has updated the database format it uses to store information about your messages. Mail plug-ins: The first time you open Mail after upgrading, it moves most incompatible third-party plug-ins (which are normally stored in ~/Library/Mail/Bundles) into ~/Library/Mail/Bundles (Disabled) and displays an alert telling you what it’s disabled. Don’t try to reenable these manually; Mail will thwart your every effort to get them working. Check with the developer to see if a Sierra- compatible update is available. E) System Preferences Changes: As usual, Apple added, moved, and renamed a few items in System Preferences. I won’t do into the changes here, I’m just alerting you to check. ----- OR B) Erase and Reinstall Sierra If you’re sure that you don’t need a new drive, but you want to start from scratch, you can erase the disk and reinstall a fresh copy of Sierra. (Make sure you’ve backed up your data and you know how to restore it!) Boot into macOS Recovery, select Disk Utility, and click Continue. After the utility launches, select your startup drive’s name in the list on the left. Click the Erase button. In the Format pop-up menu, choose Mac OS Extended (Journaled), rename your disk if you like, and click...(you’re sure, right?)... Erase. Once this process is done, go back to A) Reinstall macOS, earlier in my email message, and follow the directions there—or, if you have a bootable installer disk available, now is the time to use it. Note: For more about macOS Recovery, see this support Apple article <https://support.apple.com/en-us/HT201314>. Cheers, Ronni 13-inch MacBook Air (April 2014) 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz 8GB 1600MHz LPDDR3 SDRAM 512GB PCIe-based Flash Storage macOS Sierra 10.12.1
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