i upgraded my asus s550c to windows 10 and since i was not very technical, it was a nightmare. i finally made it work and have only been using this laptop again after a long while, when i noticed that i only have one drive. drive c. i was expecting 2 drives because i remember partitioning my disk. i opened disk management and saw the unallocated disk space 280+ GB that i can not use. aside from that i noticed that i have 2 recovery partitions, drive c, and a system reserved. i read somewhere that the maximum partitions one can have is 4. now i dont know that to do and i need your help badly. i cant extend volume c btw.