Need compatible SSD for ASUS VivoBook X507UA-EJ859T
I have this laptop (amazon.in/gp/product/B07SWDHD1V) and is 2.5 yrs old and recently HDD is slowing up. I need to upgrade to SSD so called customer care who said M.2 SATA 3 is compatible and they gave a local authorised service centre number who quoted me 800 INR as service charge but in one of the reviews it is mentioned that '1- M2 slot ? --->> It features m.2 slot on the motherboard which will allow you to use an NVMe based SSD (max 256GB) to speed up the system' so confused if Nvme is compatible. Can anyone please confirm the compatible SSD so that i can buy online and how to retain this original Windows OS i am on. I am OK with fresh install but OS should be activated. In Windows settings device name is 'VivoBook 15_ASUS Laptop X507UAR'.