If I put the hard drive of an old computer on a new one, will there be a program conflict?

Question

Hard disks

I need to move an old hard drive to a new PC that has an SSD. Windows is installed on both disks (on hard 8.1, on ssd 10), as well as several identical programs, will there be conflicts when installing the old disk into a new assembly, and how to do it correctly?

Answer 1

nothing will happen, just select the desired system with which to start

Answer 2

May have problems