Hello again - I have a Lenovo notebook relative new with lots of capacity but I can't load Zorin 17.2 from "System tools." I push the button for 17.2 core and get this:
Not sure what you are trying to do there, but look at your screenshot. You already use Zorin 17.2 
I was confuzzed aswell ,and thought lemme keep quiet incase I miss something and look stupid lol
Maybe he means upgrade packages ? Dunno ...
In which case run
sudo apt update && sudo apt upgrade
I thought that first but later i edited my post. Because he is using linux for quite some time now.
Correct me if I am wrong here, but isn't the upgrade tool's only purpose, to upgrade the entire OS to the next version, when it comes out, IE Zorin OS 18.
When I call up "About", I get this:
When You click on ''Content of the Report'' what do it show You? And when You make in the Terminal a sudo apt update && sudo apt upgrade does it show any Error's?
Ohhhhh, for some reason we were lead with the impression that you were on OS 17, that would be our mistake. I appreciate you showing us that you are actually on OS 16.
Please run these commands in terminal that you were given before.
CTRL ALT T to enter terminal
Run this...
sudo apt update
Then run this...
sudo apt upgrade
Restart the computer after that is done.
Then try to use the upgrader tool again. If it still fails, there is a more serious issue you are having, which might be due to installing packages not compatible with the upgrade to OS 17. Can't say for sure, we got to do things 1 step a time here.
You can use it for Upgrading to Pro, too.
Yep, I am aware, I see it right here. 
I'm waiting for Zorin OS 18 to release, then I will start that baby up, and like John Luc Picard, I'll say, "Engage" 
Thanks everybody. I did what you suggested but still get the same error flag. If I remember correctly, the only packages I added was Synaptic Package Manager and Screenshot.
[CHECKING] Started
[CHECKING:Validating Upgrade Attempt] Started
[CHECKING:Validating Upgrade Attempt] Completed
[CHECKING:Checking Filesystem] Started
[CHECKING:Checking Filesystem] Completed
[CHECKING:Creating Necessary Files] Started
[CHECKING:Creating Necessary Files] Completed
[CHECKING:Adding GPG Keys] Started
[CHECKING:Adding GPG Keys] Completed
[CHECKING:Restarting Apt] Started
[CHECKING:Restarting Apt] Completed
[CHECKING:Simulating Flatpak Transaction] Started
[CHECKING:Simulating Flatpak Transaction] Completed
[CHECKING:Processing Apt Repos] Started
[CHECKING:Processing Apt Repos] Completed
[CHECKING:Updating Apt Repos] Started
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Retrying
[CHECKING:Updating Apt Repos] Fatal Error: { error-repo-download-failed: E:The repository 'https://ppa.launchpad.net/zorinos/apps/ubuntu jammy Release' does not have a Release file., W:Updating from such a repository can't be done securely, and is therefore disabled by default., W:See apt-secure(8) manpage for repository creation and user configuration details., E:The repository 'https://ppa.launchpad.net/zorinos/drivers/ubuntu jammy Release' does not have a Release file., W:Updating from such a repository can't be done securely, and is therefore disabled by default., W:See apt-secure(8) manpage for repository creation and user configuration details., E:The repository 'https://ppa.launchpad.net/zorinos/patches/ubuntu jammy Release' does not have a Release file. }
[CHECKING:Updating Apt Repos] Failed
[CHECKING] Failed
[CHECKING:Restoring System] Started
[CHECKING:Restoring System] Error: { error-repo-download-failed: E:The repository 'https://ppa.launchpad.net/zorinos/apps/ubuntu focal Release' does not have a Release file., W:Updating from such a repository can't be done securely, and is therefore disabled by default., W:See apt-secure(8) manpage for repository creation and user configuration details., E:The repository 'https://ppa.launchpad.net/zorinos/drivers/ubuntu focal Release' does not have a Release file., W:Updating from such a repository can't be done securely, and is therefore disabled by default., W:See apt-secure(8) manpage for repository creation and user configuration details., E:The repository 'https://ppa.launchpad.net/zorinos/patches/ubuntu focal Release' does not have a Release file. }
[CHECKING:Restoring System] Completed
It's 0125 in the morning here so I'm going to bed. I'll check in with you all later this morning.
Okay, thank You for that. It looks like some Problem with the Repo's. With the Zorin Repo's. If I understand it right, the Program wants to update the Repo's to the Zorin Jammy's but that doesn't work. And then it wants restore the Zorin Focal Repos but that doesn't work either ...
Could You take a Look in /etc/apt/sources.list and /etc/apt/sources.list.d and then say/show us whats inside these? Of course first after You've slept.
No, use the File Manager Nautilus (''Files'') and go there in the Directories.
Or use
cat /etc/apt/sources.list
ls /etc/apt/sources.list.d
You have typos. It is sources, not source
The second you have sources correct, but it is LS not IS
All lower case.
Sorry, I'm not following what you're telling me. Would you mind walking me through the steps?
