I like Sierra and will upgrade to High Sierra when I get some time. I run it on a 2011 MacBook Pro and an iMac 2013, works very well.

FWIW I always test a new OS on an external USB drive first before installing on my main hard drive.

Opera is not Safari. It is a totally different browser, made by a company in Norway.

http://www.opera.com/about

Safari should be in your applications folder. The El Crapitan installer would have installed it there.

I did some research on the latest version of Quicken not long ago and it is supposed to open old files. Contact tech support.

Yesterday I spent a lot of time with Apple support, and they said that I should go to El Capitan. Not being able to go straight to Sierra?

Yes, found the Safari. Now it is my default browser.. I am used to Firefox. Will have to change.

Yes, spent an hour with Quicken tech support. I tried to upgrade back in 2013, or 2014, and it was either a version that would work on the new OS but not read old files, or one that read old files but not work on the new OS. Something about a PowerPC. I chose the system where I could read old files.

So I decided to just save all the old files - on two external drives - and start new with the 2018. The support was great! And he did show me how to convert files

Snow Leopard was the last version that supported running old PowerPC software on intel based machines. So yeah that explains the old quicken issue!

Glad you got Safari and got the Quicken issue worked out.

I wonder if maybe Apple tech sent you to El Capitan because your machine isn’t supported by Sierra? I vaguely remember they didn’t support older machines with Sierra that had 32-bit processors (versus 64-bit ones). So for example I don’t think my MacBook Pro from 2008 could be updated beyond El Capitan?

On Edit: I did a little googling and here is an ok article on which machines can run Sierra, with instructions to figure out if your machine can

https://coolestguidesontheplanet.com/system-requirements-for-macos-sierra/

I had in the corner, an offer of MacKeeper scan.

I started scanning, it found serious problems, close to 800 files, but then I quit. Not sure whether it is legit.

With all the meltdown and the other problems, I probably should have an anti virus except that, as recently as two months ago, the Apple people said we don't need one..

What do people here use?

from Symantec on her work MacBook Pro, so that is a good and respected one.

They said DO NOT upgrade Sierra to High Sierra at this time, especially with older Macs like my iMac and my old late-2009 MacBook. They are selling all their used refurbs with Sierra and waiting for numerous bugs to be worked out with High Sierra.

Mac Pro and it seemed to work well. But I am pretty cautious so will indeed put off putting it on the main HD for a while. When I do I will back every thing up so I can revert back if need to.

Hey I am curious, did you do the iMac SSD and RAM upgrade yourself? How hard was it to get into the machine and do that?

I changed out the processors in my Mac Pro and upgraded my MacBook Pro w an SSD, so not afraid to do that sort of thing.

But an iMac seems very daunting!

I had purchased the refurb/90-day warranty iMac at a special deal they had. Just couldn't come up with the cash for a new one, and since I'm now old and retired, wanted a desktop with bigger display . Called them back later and had them put in the SSD and extra RAM before they shipped it. I did up the RAM and replace the built-in battery myself in the MacBook a few years ago with no problem. However, I thought back to the time when I tackled replacing RAM and the HD in my 1999 iMac Blueberry all in one. That was a pain in the ass with all the screws and shit that had to be removed, so I just paid OWC for the parts along with 80 bucks labor to make sure it was done right.

OWC is a good outfit to deal with. I think they have "how to" videos if you want to tackle doing it yourself. A site called fixit.com probably also has similar videos.

Don’t know what happened in your case, but Apple automatically updates Safari on its systems. Only download system tools from the AppStore. The fact that you meant to download an updated Safari and got done version of Opera alarms me. Get an official version of Safari immediately.

updated by Apple.

So from OP’s post sounds as if he or she thought Opera was the same thing as Safari, so he downloaded Opera.

Shut off the computer, opened and here, in the Dock, a new icon. Chromium.

I had a link form my mail, hit it and... opened in Chromium even though Safari is now my default..