Be sure that you have the correct Disk #. You would not want to wipe clean the wrong disk.
A) Press the Windows + R
keys to open the Run dialog, type compmgmt.msc
, and press Enter.
B) If prompted by UAC
, click on Yes
C) Click on Disk Management
in the left pane, and make note of the disk #
in the middle pane of the disk that you want to clean
or clean all
. (see screenshot below) NOTE: For example, I would use Disk 1 if I wanted to use clean or clean all on my USB key drive
D) Look under the Disk #
(ex: Disk 3) in the left part of the middle pane, and check to make sure it says Online
. If it doesn't, then right click on Disk #
and click on Online
to make it so. (see screenshots below)