I've been given an HP Pavilion 554Y box.
Problems: No CD ROM drive, so-called CD Writer drive doesn't appear to be recognized as a boot device. Has Removable Devices as a boot option, but not sure if that includes USB stick or just floppy.
Attempted solution: Tried creating a bootable USB stick on my current TCL box. Booted into cloud mode, mounted target USB stick as sda1, installed the required extensions (per15, dosfstools, syslinux) and ran the USBInstall script (from Tools). Selected the 'z' option. Script prompted for target USB mount point. Entered sda as suggested. Script exited immediately and window closed. Tried booting the HP box with the USB stick anyway, with Removable Devices selected as the first boot option. Booted off the hard disk into Windows, then started giving me a bunch of messages about how my computer's not secure, etc.
Besides reminding me why I stopped using Windows in the first place, didn't accomplish a thing.
Any ideas? Thanks.