Official support for 32-bit Windows ended several versions ago. Current releases, such as Genymotion Desktop 3.9.0 , strictly require a with virtualization technology (VT-x or AMD-V) enabled in the BIOS/UEFI. Can You Still Run Genymotion on 32-bit?
If you must use Genymotion on a 32-bit machine, your only option is to find (like version 2.6.0 or earlier), which occasionally supported 32-bit Windows 7, 8, and 10. genymotion download for windows 10 32 bit
Because the x86 32-bit architecture is considered obsolete, Genymotion has shifted its focus to x86_64 systems to better virtualise modern Android versions (Android 7.0 and above). Why You Won't Find a New 32-bit Version Official support for 32-bit Windows ended several versions
Before searching for a download, verify if you actually have a 32-bit system: What are Genymotion Desktop requirements? such as Genymotion Desktop 3.9.0