I have an old NP530U4B-S01FR that had HDD. I replaced it by a crucial 500Gb.
Installed new windows 10 on it, after upgrading all drivers and updates, the boot time takes around 1m30 ..
I tried following @magicandre1981 analysis but i'm not an expert at WPA ^^
From what i've seen is that the Boot sessioninit-phase takes 85.67seconds which include the smss.exe but then i'm not sure where to look.. I've seen that there was a atikmdag.sys somewhere, i tried to dig after that and found a weird behavior.
After uninstallating the HD 7500M/7600m driver from the device manger and rebooting i have no delay at all...But then windows proceed to reinstall this driver again and delay come back.I tried upding manually the .cat driver for the graphic card, same issue.When i try to launch the driver from AMD website, it says some DLL error.
Attached the WPA filehttps://drive.google.com/file/d/1WrZ00uM9seq04tIJN-vJpO_cEUBRp6S4
Thanks !!