I have recently bought a laptop with 500gb of HDD space. The "experienced" people at the computer store installed windows on a 100gb partiton and left those 400 ( 365 to be precise ) gigabytes unallocated. How do i make them into a normal partition without reinstalling windows and without the risk of messing something up?
Go into your computer management - go to storage - disk management - you should see "Unallocated" space after your "C" drive. Right click on it and mark it as active/or create a new simple volume and assign a drive letter to it..