As we don't know which OS, Windows 2000 breaks on too big a boot volume. And sometimes I can boot GPARTED to change the partition size. And some versions of Windows have a way in Disk Management.
Here, too much not told.
I reset my laptop and the 1tb hard drive that was my full local drive has partitioned and made 200gb as local drive and 800gb as unallocated, disc management wouldn't let me merge the unallocated drive. So I created a new one for the time being, how Do I format the HD to have only one partition, 1tb as local drive