Cannot Safely Remove USB Drive on Windows 10? Use Diskpart

From time to time, I cannot safely remove or eject a USB drive. The reason is that one or more processes locks some files. For instance, I observed the following files were locked by a svchost.exe process on the USB drive F:,

F:\$Extended$
F:\System Volume Information\

The method that works consistently for me is to use Diskpart. Note this requires administrative privilege.   Below is an example to remove the external drive (shown as Disk 1),

C:> diskpart
DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          465 GB  1024 KB        *
  Disk 1    Online         1862 GB      0 B

DISKPART> select disk 1

Disk 1 is now the selected disk.

DISKPART> offline disk

DiskPart successfully offlined the selected disk.

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          465 GB  1024 KB        *
* Disk 1    Offline        1862 GB      0 B

To bring the disk back online without re-plugging it, we do the steps illustrated in the example below,

C:> diskpart
DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          465 GB  1024 KB        *
* Disk 1    Offline        1862 GB      0 B

DISKPART> select disk 1

Disk 1 is now the selected disk.

DISKPART> online disk

DiskPart successfully onlined the selected disk.

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          465 GB  1024 KB        *
* Disk 1    Online         1862 GB      0 B

DISKPART>