As I understand it, you have a 32 GB solid state drive, and it is the only hard drive in this machine.
32 GB is not very much space. I don't know if you can successfully install Windows 7 64-bit on this machine unless you get a bigger hard drive. Can you open the machine without damaging it? If so, you might be able to install a bigger internal drive. But be careful, because you might damage your machine by doing this.
You could try to make Windows 7 smaller, so that it will fit on the drive. The idea is that you will plug in an external drive, install Windows 7 to that drive, shrink it down as small as possible, then push that install to your internal drive (if it will fit). Here's how you can do this:
1. Connect two external drives - one should be at least 100 GB, and the other should be at least 32 GB (the size of your internal drive). You can use either hard drives or flash drives.
2. Install Macrium Reflect Free (or some other backup software) on the big drive.
3. Create a Macrium rescue disk, using the other external drive as the rescue disk. (You need to do this step before putting anything else on this drive, because doing this step erases the drive.)
4. Do an image backup of your current internal hard drive. Back it up to the smaller external drive.
5. Set the machine to recognize the bigger external drive as the Windows drive.
6. Install Windows 7 on that drive.
7. Log into Windows and uninstall everything that you possibly can (i.e. the junk which comes with Windows -- trial versions of software, etc.).
8. When you have made Windows 7 as small as you can possibly make it, go into File Explorer, and see how much room it is taking on the drive. It needs to be 28 GB or less, because you have to have at least a little bit of free space in order for Windows to be able to operate.
9. Restore the image of the Windows 7 install that you created - restore it to the internal drive.
Another option: Install 32-bit Windows 7 rather than 64-bit Windows 7. The machine comes with Windows 10 32-bit pre-installed. This suggests that the machine is 32-bit, not 64-bit. I suggest you try installing Windows 7 32-bit rather than 64-bit.