Hi KNP. Thank you for your reply and for your compassion.
1- i can not understand. The purpose of OS is to serve users and to make them fill comfortable. At least this was the purpose of the OS in the earlier era...When the people was honest ... So what happen now? I have to accommodate to the OS? And to think if my needs are compatible with tne OS i use? No! I just want to find OS that will serve me better. But in modern times seems that user serves the owner of the OS. So no MIX. There is just needs... Which actually become a way to force me to make things i do not want... And to make someone else richer and richer.

2- wine... wine become a vinegar... I am not very optimistic about wine. It had success. It seemed that just few more steps and we will have real alternative os that will run windows applications. By the way - I (perhaps we) use windows not because i love it , or love Bill Gates, or love their nasty policy against the users. I use windows because of programs that run on it. So wine was a big hope of alternative... But what happened? Something happened, and now wine is cycling in one place... And there is no hope any more.

3- I write earlier: knoppix did better than windows on this ancient laptop. That's why i write here. As far as i know , there is no way to make optimized for distant learning live version of windows. Perhaps there are another live versions of linux (slack, quantain, kanotix etc.). But i love Knoppix most. And the latest live cd for education is from 2016. Even then (before mas distant (un)learning) there was need for specialized live cd for education. Now it is far more needed. I hoped knoppix would help in this.

4- ancient hardware... i am more than 20 years old - so i am ancient hardware too... going to landfill...

Why i am using mostly m$ teams? not zoom or others? It is interesting story. Few years ago M$ threaten government of my country that M$ will inflict sanctions on our country because of piracy. And our government agreed to pay for mass license of M$ products. As a compensation of the piracy in my country. As time passed our government continue to pay , but access to M$ products ceases. And one of products payed by our government is M$ teams. And all the schools in my country use M$teams. That's why i was asking for teams on knoppix. By the way , do you think that if M$ can force a government to pay , M$ will not force some little team of developers to stop developing... wine for example... or sharp develop, or mono develop (for windows), or gnumeric or more and more and more... By the way the latest windows version of gnumeric was little bit better than M$ excel ... and then gnumerric developers stopped development for windows , claiming that: "Effectively immediately we have stopped releasing and distributing binaries for Windows. There are too many crashes that have all the signs of being from Gtk+ and lower parts of the stack. We do not have the means and time to debug Gtk+. Volunteers are welcome to take up the effort."
As if Gtk+ developers are not concerned in debugging "...crashes that have all the signs of being from Gtk+ and lower parts of the stack."
And it is strange: open source developers , neglect and dislike open source ... of other developers... Suddenly... How we could trust open source at all?


What a wonderful M$ world...

Knoppix is still an island in the ocean ... But how long?

Thanks for you reply and for you compassion.
Best regards.