Recently i purchase a second handed pc from my friend. And after few days i had this problem where my pc took vry vry long time to boot(more then 5-10 minutes).. i have a Kingston ssd install and my os is on that drive. I even reinstalled windows again but no luck. It's very frustrating and i cant find any solution on it. However when the pc was with my friend (from whom i purchased). It was working excellent .and his os was on the m.2 for 2 weeks,before having it on the sshd. Even then there was no such problem in boot times. Please help me!