How to increase disk space on Windows Server 2012/2016?

To increase the size of the space, you need to perform several sequential operations in the panel, and only after them will be possible to use the at the Server OS level.

You need:

  1. Open the dropdown menu and go to Management. Among the items, select
    Server Manager, click on Tools (Tools) and find Computer.
  2. In the list on the left, there will be an item Storage. Click on it, two sub-items will open, from which you need to select Disk Management. After refreshing the window (key F5), an unallocated area will appear. In the example, the “Unallocated” zone is black and has a size of 40 GB.
  3. Right-click on the system drive from the list. In the drop-down context menu, select the Extend Volume command.
  4. The Extend Volume Wizard window will immediately appear.
Extend Volume Wizard
  1. In the window, you need to set the size of the unallocated area. Most often, users choose all the space that is now free. After setting the size, click on the Next button.
Choosing the Size of the Unallocated Area
  1. You can confirm the changes with the Finish button.
Change confirmation
  1. You can check the result in Computer Manager – no unallocated area should appear in the window.


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