I found that the SpeedTest function in RMPrepUSB/RMPartUSB no longer seems to work on Windows 10 and gives a write error. This is now fixed in v2.1.734.
I also took the time to look into some niggly bugs in DiskDoctor (use CTRL+D inside RMPrepUSB to launch it after selecting a disk (does not work on disk 0) in RMPrepUSB).
If you want to try DD, use a disk that contains unwanted data first, until you become familiar with it!
For instance, if you start a Sequential Read of the whole disk, DiskDoctor (aka DD) will attempt to read all sectors, in blocks of a 'track' at a time, into a track buffer (63x255 sectors). This can take several hours for a 2TB HDD!
I also took the time to look into some niggly bugs in DiskDoctor (use CTRL+D inside RMPrepUSB to launch it after selecting a disk (does not work on disk 0) in RMPrepUSB).
DiskDoctor
DiskDoctor is a disk testing and editing tool which must be run with Admin privileges. The version included in RMPrepUSB has been stripped down quite a bit since I wrote it some years ago, and some functions and command line support have been removed. It was originally used as an automated test tool in a factory environment and used to test literally millions of computers.If you want to try DD, use a disk that contains unwanted data first, until you become familiar with it!
For instance, if you start a Sequential Read of the whole disk, DiskDoctor (aka DD) will attempt to read all sectors, in blocks of a 'track' at a time, into a track buffer (63x255 sectors). This can take several hours for a 2TB HDD!