I have tried several times on my grandmother's laptop to change from Windows 7 to Windows 10, but every time I have the problem that it stops at 46% and does not continue to install. Maybe you know what that could be.
Depending on the laptop, this can take several hours
Install Linux is done after 5 minutes.
I also had my problems there… But with the assistant it worked out at some point
You also have to make sure that Windows 7 Professional or Home is on the laptop
For inexperienced users, I would install the free and virus-proof Linux Mint. As with Win7, operation is only easier. It includes all programs that I need. Linux runs easily and does not cause any problems.
Do you download the .iso first or do it with the assistant and he tries to reload the data during the installation?
My tip: download Media Creation Tool → .iso -> mount .iso and run setup.