Hi, Simon's method is quick and dirty. I forgot to mention the part about connecting to WiFi. I'm used to doing this with an ethernet connection on those older iMacs, so forgot to mention that part. Ethernet connections are better for this, but if you were connected to WiFi before you started this process, you should be OK, as it should remain connected to that network.
Later... Tim Kilburn Apple Teacher (with Swift Playgrounds Recognition) Jamf Certified Associate Fort McMurray, AB Canada On Jun 14, 2019, at 16:19, Simon Fogarty <si...@blinky-net.com> wrote: Hi, Tim might think differently to me on this, 2 ways I would suggest are either you have a USB flash drive setup to be a bootable installer with High sierra on it. Not that complicated so log as you have an 8gb usb flash drive and obviously the actual install media. Or possibly the simpler one is turn the machine off, Hold down the command and R keys then while holding them down power on the machine and hold those keys for approx. 30 seconds or a little longer with the 2009 machine. Then let thos keys go and give the machine time to start up to the mac os utilities Note I should have said this will need a wi fi connection to get internet access. Then once up and running turn voiceover on and use disk utility to eraise the drive And then the install mac os option to install which is from the net and will be possibly slow depending on what type of connection you have. Quick and simple I know but there is slightly more but it’s more time related than anything else. From: macvisionaries@googlegroups.com <macvisionaries@googlegroups.com> On Behalf Of joseph Sent: Saturday, 15 June 2019 9:19 AM To: macvisionaries@googlegroups.com Subject: Re: reformatting 2009 iMac drive Hi It has high sierra installed and I wish to do a clean install Best Sent from my iPhone On 14 Jun 2019, at 8:10 pm, 'Tim Kilburn' via MacVisionaries <macvisionaries@googlegroups.com <mailto:macvisionaries@googlegroups.com>> wrote: Hi, Do you already have the High Sierra installer? Or, does it already have High Sierra on it? I ask this because it is slightly challenging to download the High Sierra Installer app now that Mojave is the most current MacOS. It is doable, but not as easy as just going to the App Store. Beyond all this, the process is difficult to explain without knowing if you're hoping to do an upgrade to your existing MacOS, or a complete clean install of High Sierra. Later... Tim Kilburn Apple Teacher (with Swift Playgrounds Recognition) Jamf Certified Associate Fort McMurray, AB Canada On Jun 14, 2019, at 10:12, joseph big <joseph.bi...@gmail.com <mailto:joseph.bi...@gmail.com>> wrote: hello. how to reformat a 2009 iMac hard disc and install high sierra since Maharvi will not install on this one? thank you in advance -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. 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