Regular DOS format (not "quick format") will write E5 in all sectors.<P>If you follow it by Calibrate from Norton Utilities, and select 80 pass pattern test, your data should be pretty close to ...

The command is: Format H: /P:7 The number after /P: is the number of secure erases Windows performs (so in this case it's a total of 7). Read more at the link below.

Remove and overwrite all data on a hard drive for free Before we can use the format command in this manner, we first must boot our device with a Windows 11 Recovery Drive.