Wipe unused space in Swap file - Swap file is the Windows system file that is used for the virtual memory support, and it can store parts of documents, you were working with, in an opened form on hard drive. If you set the option, BCWipe will erase unused space in the swap file. Hence, if some sensitive data is still stored on the unused space, it will be wiped. More cardinal way to solve the problem of security leak through the swap file is to activate Swap File Encrypting utility by pressing the button (see also the Swap File Encryption chapter).
Wipe empty directory entries/MFT records - Directory entry is a reserved space on a disk, where the file system stores name and attributes of the file. During ordinary Windows delete operations, Windows just marks a corresponding directory entry as unused, but does not erase the whole directory entry. Any file that has been ‘deleted’ by Windows, can get its name restored by special utilities. You can set the option to erase all data from directory entries. Note that analog of Directory Entries in NTFS is called MFT - master file table. So this option is called Wipe MFT records for NTFS drives.
Wipe file slacks. - File slack is the disk space from the actual end of a file up to end of the last cluster used by the file. The space may contain data from files written there earlier. Set the option if you want to wipe slacks of files on the disk.
Use skipped list. - Wipe of file slacks is time consuming process. If we take into account that many files and folders are stored on disk for a long period, we can wipe file slacks of them once only, and then configure BCWipe so that the program will skip slacks of the files inside the folders. To create list of files and folders that must be skipped when the program wipes file slacks, press the button and the following window will appear:
