Software Boutique white screen and 5 sec whitish blank screen while boot

I’ve installed 32 bit version of 18.04. reduced grub timeout to 0 second

Still getting a whitish black(greyed?) screen when booting up for around 5 sec without any grub option
(though I’ve reduced grub time to 0 now ,when booting first time didn’t see the grub option either.)

what to do?
[to get around the extra boot time of 5 sec on my ssd I had even installed manjaro and reduced grub time to 1 sec while choosing ubuntu mate on grub to get 4 sec off boot. well I’ve already reinstalled only ubuntu mate on my ssd now as I don’t want other distro on my system but how can i get around the grey screen while boot and the software boutique issue?]

the grey image while booting

By the way is there any way to build uefi live boot usb from this 32bit iso? I’m not able to get uefi from this iso.

Thank you in advance :slight_smile: