I have a WIN 7 - software (with product key) on a PC and constantly in use.
Can I also install this software on my notebook so that I have the software installed on two devices and can use it on two devices?
Yes, you can install the software as often as you like. However, you must buy the product key again, otherwise all devices that use the same key will be blocked!
However, I can only advise you against the everyday use of Windows 7, because soon the support ends and you could be exposed to great dangers that can only be eliminated by patches in the operating system.
Due to missing software updates, there were already large-scale lameness of PCs that did not have the latest updates and then had to pay ransom!
Apart from the fact that it is nonsense so close to the support end still a device with Windows 7 to record.
Yes of course it is technically possible to install Windows 7.
And the use is legal, if you have the appropriate licenses.
Whether it works smoothly depends of course on whether you have drivers for the entire (!) Notebook hardware.
More options:
https://www.giga.de/...s-gemacht/
http://computerladen-42.de/windows-7-loader-activator.html