How can I install Windows 10 on PC?

I live in Moskau. I have a modern notebook, but now I live on the dacha (because of Covid-19). Here I have a lot of old PCs on Windows 7. I set up PC, install browser, Word and Power Point, Skipe and others, but I want to have new functions and new standard programs. How can install W10 so as not to damage PC?

Either with an installation DVD with Win10 or with a Win10 USB stick.

Put the installation medium in the CD / DVD drive, boot up the computer and follow the instructions on the screen.

If you are registered with Microsoft, you can upgrade to Win10 using the MediaCreationTool Win7.

MediaCreationTool.

But it can happen that some programs on Win10 no longer work.

Otherwise you can google it or watch a YT tutorial.