studio428 Said:
"Unwanted Screen Share: I was working on my iMac today when it suddenly went to the login screen. Upon logging in, I was informed that my screen was being share with a 192.??.1.216 ip address.[...]Has anyone else had this happen? Should I be worried? What can I do to prevent it in the future?"
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Avoiding Screen Sharing:
A. Restore from a Backup:
Did you create a backup of your Mac prior to upgrading? Is so, then restore from the backup. If not, then take this as a learning experience, knowing to always backup your Mac, prior making any major changes to your Mac (i.e. migration data).
or...
B. Install the MacOS Anew, then Migrate:
If you created no backup, then you need to reinstall manually. Contact the Developers, if need be. I'm no so certain how long a backup would take, but you'd need to back it up prior to the download, if no backup already exists.
To Reinstall the macOS anew:
You'd backup your Mac, install the macOS anew, and then migrate certain items back.
- Create: a Time Machine Backup using an external Hard Drive
- Install: from a USB Installer created for the applicable macOS
- Migrate: items from your TMB
- Download then Install: the applications, getting the programs back from the Developers.