How to copy all user files, folders scattered all over the C:\ drive to one place?

Question

Backup

Good day!
There is such a task: You need to copy files, folders, games (there are a couple of games with blunt protection - you can’t disturb it when transferring, discs with games are available), etc. At the same time, ALL of this is scattered over the C:\ drive, on which, by the way, the place comes to an end (about 50-60 GB remained). I plan to reinstall the system, clearing it of rubbish at the same time. I'm thinking of installing it on another hard drive, and before that, the system needs to be stored in this state for a long time. There are recovery disks, I can reinstall the system later. The system image will not help me - it will drag garbage along with it, and I only need to pick up the files.
A solution that collects all this in one folder may come up. Then I can pack in MIG and transfer without problems.

Answer 1

If we set the task differently, for example, all folders with photos separately, all folders with music separately, etc. according to the described criteria, then such a problem can be solved.
In the same form as now, at least you need artificial intelligence, which, based on all your life experience, will highlight the “necessary” and leave the “unnecessary”, as they say, repeat the request later, the numbers are so in 50 years.