After Win7 reinstalls the system, the D, E, and F disks are missing. Solution

  

After the Win7 reinstalls the system, the D, E, and F disks are missing.

Right click on My Computer, then select Management options, then select Disk Management and click to enter. At this time, you can see D, E, F and other disks, but these disks have no name, no allocated disks, and you can solve them yourself, as shown below.

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