Reinstalling Windows 8.1 without losing the license and creating a recovery partition, how?

Question

Hard disks

I bought a licensed Windows 8.1 on DVD I
installed it on a laptop without a pre-installed OS
How can I reinstall it now without losing the license and how to create a partition so that I can then roll back and not install from the disk?
Does restore by point work?

Answer 1

How to reinstall it now without losing the license

If on the same computer, then it is not called "reinstall". This is called a "reinstall" and there will be no licensing issues. If you want to install on another computer from the same distribution under the same key (calling it with the word "re-"), then this is strongly not recommended - one of the OS will be unlicensed.
I would not advise creating a separate partition for storing backups next to the redundant OS, because, firstly, PMSM, it makes no sense to occupy 15 ... 20 GB of disk and then constantly carry with you what you need every few years Or, ideally, never. Secondly, such storage is unreliable - if this disk dies, then your backups will also be inaccessible, and then what to restore from? It is more correct to store it on a third-party medium: if there are problems with it, then you will have a working original OS, and vice versa.
Only if you turned it on and set it up - it's not at all a fact that it's all there by default. Sometimes it happens that recovery by points is enabled, but the disk space allocated for these points is zero - in this case, of course, no recovery will work. And of course, enabling this option makes sense only for the system partition. The general rule for backing up the system partition: to minimize the size of backups, it is worth transferring from the system partition to the user all sorts of temps, swaps, the "My Documents" folder, etc.

Answer 2

Why should you lose your license? It's not about the number of installations :)
But create a partition - Acronis to help you (or analogues).

Answer 3

You can make everything easier to create an Acronis TrueImage system image and not complicate your life with OS installations, software, drivers. Restore by points works.