@datboilizzy the issue you're having with the pets disk may be that your computer is blocking it from running but it isn't telling you. I have that issue with installing particular packs. I think your computer is compatible, but windows operating systems can be very annoying and block things without even telling you.
After inserting the pets disk, open task manager and find "Run new task." It will bring up a box where you can browse for the program. Find autorun.exe within the disk data and chose that. Then make sure you click "Create this task with administrative privileges."
That will force the .exe to run. My windows blocks M&G stuff, free time, ikea stuff, and K&B stuff. So this method is how I installed them, and how I launch my game through M&G stuff.
Do you get the "insert disc 1" whilst trying to launch the game or when trying to install something? Or both?
Sims 2 is a really awkward game to install on newer operating systems and with newer graphics, but it's definitely possible.
I had to search up double deluxe because I wasn't sure what it included. It includes nightlife and when I search the pictures, I can only see ones with two disks. A green and a blue. I'm a bit concerned you may have been sold an incomplete set as you state you only have one disk. I did find one picture of a double deluxe with actually one disk. It has the box art on the disk, correct? Also I found your other post where you were asking for help. When trying to install double deluxe have you ever tried inserting the base game disk (not from double deluxe)