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mixel

macrumors 68000
Original poster
Jan 12, 2006
1,730
976
Leeds, UK
I have an iMac running latest Catalina.. The methods I had to use to get bootcamp to work in the first place were unusual (i was running it from an external USB drive)

I have an internal drive that is now Mac formatted but was at one point Windows - clearly there's some residual Windows MBR or something, as after software updates i get the Windows 10 "no operating system installed" screen..

My iMac's main drive is an external SSD.. (I know this is all a bit mad sounding..) Anyway - to get past the blue broken Windows screen I have to find a wired keyboard and hold down Alt at boot to see all drives and choose my external Mac drive..

Is there any way I can get rid of that blue windows boot thing? It's slightly annoying. :)

Thanks in advance!
 
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