Did you download and write 32-bit Windows ?
You did write it for BIOS ?
The boot option is located in the BIOS -> "System Configuration" -> " Boot options".
Once these are adjusted and saved, you can boot using F9 on start up.
The BIOS is not locked additionally. Nowadays most BIOS/UEFI have many functions hidden compared to BIOS from 10-20 years ago. BIOS/UEFI are made more user friendly in general, especially consumer class computers (home devices) like HP Mini. There should be nothing more special in HP Mini 110 compared to most other home class devices