
Type “exit” to quit the DiskPart command mode.ġ0. This “cleans” all partition information from the selected drive, effectively wiping it and turning it into one big, unpartitioned chunk of space.ĩ. Type in a command called “ clean” and hit enter. You wouldn’t want to accidentally wipe the wrong disk.Ĩ. Be very careful that you select the correct disk number. In this example, we type in “ Select Disk 1” and hit enter. If you used the Disk Management to find this number earlier in step 3, it should be the same number.ħ. Note the disk number of the CalDigit drive with the 200MB EFI partition. Doing so will display a list of all hard drives attached to the system, the size of the disks, and the disk number assigned. In DiskPart prompt, type list disk, then press enter. You’ll see the prompt change to “DISKPART” afterward.Ħ. This launches the diskpart command-line utility used for advanced disk partitioning tasks. Type a command called “ diskpart” and hit enter. Take CalDigit Tuff drive as an example, you should see “CalDigit Tuff Device”.ĥ.

In the popup window, you will see the device information. To verify the drive, you can right click on Disk number -> Properties. Find the CalDigit drive that you want to format in the list of drives. Open Disk Management: Control Panel -> Administrative Tools -> Computer Management -> Disk Management.ģ. Connect your CalDigit drive to your Windows computer.Ģ.
PARITIONS USED FOR BOTH WINDOWS AND MAC MAC OSX
In Windows, you can remove an EFI System Partition or GPT Protective Partition from a Drive that was previously formatted and used in Mac OSX by following the procedures below:ġ.


Prior to following these directions, verify important data is stored securely on a different storage device. IMPORTANT NOTE: Following the procedure below will ERASE ALL DATA on the drive. This article describes how you can clean these partitions in DOS command mode and re-format your CalDigit drive. The Windows Disk Management tool can’t delete these EFI partitions, and you’ll see the “Delete Volume” option grayed out. Mac OSX may create an extra 200 MB EFI partitions at the start of a drive hence you may see this EFI partition in Windows.
