First, create a virtual disk
In the WINDOWS7 system, you can create a virtual disk from the Disk Management tool, click start → run, pop the Run window, enter "Diskmgmt.msc" (without double quotes) in the text box, press ENTER, open the Disk Management window, and click action → create VHD. Pop-up the Create and attach virtual disks window, click the Browse button, eject the Browse Virtual Disk File window, set the save location and file name, click Save, Return to the Create and attach virtual disks window, set the virtual disk capacity, select the virtual disks format, and then click OK (Figure 1). When you finish creating the VHD file, a virtual disk named Disk 1 is added to Disk Management.
▲ Figure 1 Creating a VHD file
Tip: Virtual hard disk format has "dynamic expansion" and "fixed size" two options, select "Dynamic Extension" item, the WINDOWS7 system will dynamically adjust the size according to the saved data; Selecting a fixed size item indicates that the size of the virtual disk is fixed.
Second, initialize the virtual disk
In a Windows7 system, creating a virtual disk is simple, but the virtual disk that you just created is not available directly, and it has to be "initialized." Move the mouse pointer over disk 1, right-click, select Initialize Disk from the pop-up shortcut menu, open the Initialize Disk window, check the disk, select the partition form, click OK (Figure 2) to complete the virtual disk initialization.
▲ Figure 2 Initializing a virtual disk
Third, create a virtual drive letter
In a Windows7 system, when you create a virtual disk, you can also assign a disk character to the virtual disk. Right-click the new, "initialized" virtual disk, select "New Simple Volume" From the pop-up menu, start the New Simple Volume wizard, specify volume size, assign drive letter, Format ..., and finally click Finish to complete the creation of the volume, open the Computer window, and see the Virtual disk (Figure 3).
▲ Figure 3 Create a virtual letter
Closing and deleting virtual disks
In the WINDOWS7 system, you can turn off and remove virtual disks, open the Disk Management window, right-click the virtual disk icon, select Offline in the pop-up menu to temporarily turn off virtual disk, and you will not be able to access the virtual disk in the Computer window, and if you want to use it, go to disk Management window, right-click the Virtual disk icon and select Online to restore access. If you want to remove a virtual disk from the bottom, go to the Disk Management window, right-click the virtual disk icon, select Detach VHD from the pop-up shortcut menu, eject the Detach virtual hard Disk window, and click OK to remove the virtual disk.
▲windows7 Tutorial Figure 4 Deleting a virtual disk
Tip: When you detach a virtual disk, if you check "delete the disk and delete the virtual hard drive file", detaching a virtual disk will completely remove the virtual disk files, if you do not check the delete disk after deleting the virtual hard disk files, the detach virtual disk will retain the virtual disk files, to create a virtual disk in the future, as long as you enter the Disk Management window, Click action → attach VHD to import the virtual disk file to build the virtual disk.