Creation of Partitions

 Creating Partition For Dual Boot System

Step1: Go to the properties of strode disk you wish to partition

Step2: Go to tools and click check

Step3: Select Scan Drive

Step4: Optimize and defragment the drive to prevent any minor errors

Step5: Now right click the start menu and select disk management 

Step6: choose the device you want to partition

Step7: Choose the biggest partition of that device

Step8: Right click the partition and goto Shrink Volume

 Step9: now assign size give it a minimum of 20 Gb of storage and click shrink

 Now just wait 

Step10: If you wish to use space allocated space. In our case we will leave as unallocated space because it is for the installation of Ubuntu