How to Securely Wipe Free Disk Space from Windows

The following, run from an elevated command prompt, will securely erase the free space from a hard drive running Windows 7 and newer causing the data to be safe from recovery…

cipher /w:X


SDelete (secure delete) from the Sysinternals suite can also be utilized to accomplish the same task…

sdelete -p 7 -z X:







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