Quartus Versions 14.1 and later are not available as 32-bit software.
However, you can use Quartus 14.0 which is 32 bit edition.
Check the below link for more information.
Apologies for the inconvenience caused,
- Starting with Quartus v14.0, Intel FPGA software only supports 64-bit versions of the OS listed in Table 1 in the link, unless specified.
- Try older version Quartus 13.0.