Thank you very much, Ronni,

I was not aware of the macOS Sierra app — it must be a new method since I 
installed Yosemite. I was confused by the name being so similar to the later 
updates.

It took a long time to download and install, but things on my computer are 
mostly back to normal. I have a few small gripes: it doesn’t seem possible now 
to view emails before they are downloaded. That was a feature I liked very much 
— weed out the recognizable bad ones before they hit my desktop.

Folders have been shuffled into different locations, and my custom icons have 
been removed, but that just takes a little time to fix.

Again, many thanks!

Pat




> On 3 Jun 2017, at 22:02, Ronni Brown <[email protected]> wrote:
> 
> Hi Pat,
> 
> You are upgrading from Yosemite to Sierra, you first require to install macOS 
> Sierra.app - NOT the Sierra Combo 10.12.5
> Combo Updates update the base version of a Mac OS X release to the version 
> specified in the Combo Update, including all intermediate updates. 
> For example, the  Combo Update updates any earlier version of macOS Sierra 
> 10.12.0 
> to macOS Sierra 10.12.5 using a single installer, as opposed to installing 
> the individual 10.12.1, 10.12.2, 10.12.3, and 10.12.4 updates.
> Go to this link <https://support.apple.com/en-au/HT201475 
> <https://support.apple.com/en-au/HT201475>>
> 
> Make sure you do backups, check updates for applications you use that they 
> are compatible, do the preparation!
> 
> Cheers,
> Ronni 
> 
> 
> -----------
> 
> 
>> On 3 Jun 2017, at 6:39 pm, Pat <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> I also am having a problem updating from OSX 10.10.5.  I first downloaded 
>> the latest Sierra Combo to 10.12.5. When I tried to install it, the message 
>> said it could only be installed on 10.12.2. So I downloaded the Combo 
>> installer for that. When I tried to install it, it said it could only be 
>> installed on 10.11.1. 
>> 
>> I have downloaded that Combo now, but it still says it has to be installed 
>> on 10.11.0. I have searched for such a Combo installer without success. 
>> 
>> Need some advice as to what to do. I thought Combo installations should work 
>> on any previous OS. Certainly, Yosemite is the last iteration of OSX 10. The 
>> Apple "support help" has not provided any information.
>> 
>> Hopefully,
>> Pat
>> 
>> 
> 
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