Windows 7 support for 32 bit

I HAVE licensed windows 7 64 bit home premium pre loaded on my HP PAVILION dv-4t-1500 labtop. can i install 32 bit windows 7 ? Also can i activate the same with the existing product key.
Can i install 32 bit windows 7 from the recovery disc drive ? pl tell me how to install

1. Why do you want to revert back to 32-bit?

2. Yes, you can use your existing product key.

3. I don't think you can use the recovery disc drive to do an install from.

4. When going from 32-bit to 64-bit or vice versa, you must do a clean install, reformatting the hard drive.

5. If you still want to install the 32-bit version, go here to find out how to download an ISO image.

Windows 7 ISO – Official Direct Download Links