Are you talking about Programs, Connected Devices and Printers to install ???
Right click on them (Installer Files .exe) and install them in compatibility mode. That is why is was designed from at least back to XP and maybe before that.
What ever the older program or device is, see if its OEM has software or drivers for Windows 10 for that Item or program.
If not, no big deal. You can select the compatibility mode and install that device or program for the Windows Version that is was designed for and the software and drivers were created for. Works 99.9% of the time.