Hi there,
I did a clean install of windows 10 (previously i had windows 7 64 bit) and when asked me where to install windows 10 there were the options 1) the partition where i had windows 7 110 gb ssd and 2) system reserved ~100 mb. I want to know if there is a problem or anything because i didn't delete the 1) partition and do the format after but i selected 1) partition and a pressed format for that directly.