Windows 7 adjust partition function

In the disk management of Windows 7, it is no longer possible to directly create an extended partition. If you want to create an extended partition separately, you must use the diskpart command. In fact, I don't think it is necessary to create an extended partition specifically in Windows 7. When the number of created partitions is greater than 3, the partition is automatically converted into an extended + logical partition.
Step 1: Create a new partition. Right-click on the unallocated space and select New Simple Volume/Follow Wizard. Enter the parameters such as volume size (partition capacity), drive number, partition format, and so on. Friendly reminder, it is recommended to check the quick format to speed up the formatting.
Step 2: Resize the partition. Disk management that comes with Windows 7 also allows for partition sizing. Compress as well as partitioning, then right click on the next volume and select Expand Volume. However, this extension is a bit weak and can only extend partitions between unallocated spaces.
Step 3: Enter the system management interface. Find the computer in the Start menu /right click on the computer and select Manage /Access Disk Management in Storage.
Step 4: Compress the existing partition. Find the hard disk you need to adjust, you can see the graphical partition diagram. Right click on the partition to be reduced /select compressed volume /software will automatically calculate the size that can be compressed, if the compressible value is relatively small, it is best to defragment /enter a compressed value, click on the compression. After the operation is completed, unallocated space will appear at the back of the original partition.
So, how to create extended partitions directly?
Using Windows 7's ability to adjust partitions can easily solve problems that were not solved by previous versions of Windows. Friends who have used computers know that the adjustment of the partition is not so easy, especially after you have installed the system, it is very difficult to adjust. Not only do you have to use tools, but you also have to adjust your partitions and risk losing your data.