Windows 7 Downgrade from 64-bit to 32-bit

I recently bought a Lenovo Y550. My Y550 has 4GB RAM and I was recommended to get Windows 7 64 bit by Lenovo. So, I did.
Turns out, many of the softwares, utilities I use aren't working well and some don't even install. Without going into alternatives and much technical details for each of them, I was wondering if Lenovo provides me an option to switch out (or downgrade) my 64bit Windows to 32bit one?
If I remember correctly, it was just a simple selection while buying it with $0.00 difference in cost. I greatly appreciate if Lenovo does this easily.
Thanks

Use ABR tool to backup your product key.
Download a 32 bit version of your windows 7
Install, then activate with with your old product key, and install all drivers as needed
If you want a copy of the Lenovo disc:
Lenovo media can be ordered in 32/64 bit versions for ~$45

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