How to resolve Teamviewer problem
 

For about a month , I have been working with a computer company to transfer my files from old laptop to new one.We have used Teamviewer.
I have a backup plan through them (connected to cloud and my hard drive) which had a problem but seems okay now.
Learned a few days ago he switched me to his corporate Teamviewer so he has access to my computer without a password.
Now that backup seems okay, i asked his wife to remove me from full access.
She thought i could remove Teamviewer, but was to ask him and get back with me...No call back.
This feels unsafe as it is and I want it resolved.
Is the easiest fix to simply remove Teamviewer and readd it to remove his full access ?
Thanks for advice on this.

There should be an uninstall button Mint Software Center, did you install it via the Software Center app within Mint os?

Does he use a separate user account? Then remove it, and it should be safe.
If you gave him your user/password then I would uninstall Teamviewer and not reinstall it. And change the password.

Yes, i installed T. via software manager.
His corporate account shows at top left
of Teamviewer.Clicking it has setrings with option to sign out.
Under options is account assignment.It says by assigning this device 2 a T account it can be remotely managed and monitered
It shows assigned to him and there is a remove option.
Would clicking that really remove him ?
Under manage this device it says company
affiliation.This device is assigned to a company managed by 1 user. Option to remove all managers.
Do i do that ?
How can I tell if he uses a separate user account ? If he does, how do I remove it ?
MadeInGermany. what password
are you referring to ? For my computer itself ?
I can change that....
Still no call back.
So i have removed him now and all managers.
Still has his name at top left of Teamviewer.
All i can do now is remove T, right ?
What remote plan besides T can I use ?
He is my backup plan person.
After reinstall T, as long as it does not show his company, can i safely use T by telling him the password as I am ready for remote help ?

I right clicked Teamviewer to uninstall it. It shows packages to be removed as teamviewer and libminizip1
What is the zip file ?
Do i go ahead and remove it like this ?
Or should i do a command in terminal to more thoroughly remove it ?

If you did click the uninstall button within Mint software center and then the software center said remove "teamviewer and libminizip1" then click yes.

libminizip1 is a shared library.
Remove Teamwiewer and libminizip1.

Change any password that you have given to him.

Is there another user account on your system that belongs to him?
Command (in a terminal):
The usernames (login names) are in the 1st column.

MadeInGermany

I cannot interpret the results of
getent passwd....
I think I need to consult with another recommended computer guy.

Spoke with current man yesterday.
He had installed Teamviewer on my new laptop using NinjaOne installer.
While on phone he removed that installer.
I have removed Teamviewer that he installed which was in software manager
and readded it.

One question I had for him was is a firewall installed.
It was not turned on. He did not seem to think it was necessary for me.
He turned it on.

Isnt it important to have a firewall
on ?

I plan to fu with another specialist.
Thanks for your help.

Linux Mint has no open ports by default, ensuring that outsiders cannot access your machine.
However if your the type that prefers to be safe than sorry then it's better to have it turned on as you just did.