First of all, use the Windows disk management function to divide C Disk into 2 or more partitions (Shrink Volume), this partition will not affect the C Disk data, in this article, it will be divided into 2 C Disk zones.
1-1, click the right mouse button in the Start menu in the lower left corner of the desktop, and select Disk Management.
1-2, right mouse button C disk, select Shrink Volume, in the "Enter the size of the space to be shrunk (unit MB:)", fill in the size of the space to be compressed according to the demand, such as D disk needs to fill in the 100G 102400 (1001024=102400), and then click Shrink.(1001024=102400), and then click "Shrink".
1-3, after shrinking, you will find one more Unallocated (black partition), right-click on it and select "New Simple Volume…". Open the New Simple Volume Wizard, continue to click "Next", fill in the "Simple volume size in MB:" with the size of the new disk you want to create (if you want to create multiple partitions, you can fill in a value less than 102400 here, e.g., if you fill in 51200, you can divide the D-disk into a 50G capacity, and the remaining 51200 can be used for dividing the E-disk), continue to click "Next".
As shown in Figure 1-11 below, the D drive partition is complete.
Second, delete redundant partitions, all partition capacity will be merged into the C disk.
Note: This operation will delete the data in all the disk symbols other than the C disk, please back up the re-data before the operation!
2-1, right mouse button on the desktop in the lower left corner of the Start menu, select "Disk Management".
2-2, right-click on the disk to be deleted, select "Delete Volume…" >Yes to confirm the deletion, after which you will find an additional Unallocated (black partition).
2-3, right mouse button click on the C disk drive letter, select "Extend Volume…", and then continue to select "Next".
2-4, as shown in Figure 2-9, C disk expansion is complete.
