Use the help switch with the format command to show detailed help about the command's several options, including ones we did not mention above, like /a, /f, /t, /n, and /s. Beginning in Windows Vista, /p is assumed unless you use /q. You can not use the /p option with the /q option. If you specify a count, a different random number will be written to the entire drive that many times after the zero writing is complete. This format command option writes zeros to every sector of the drive: once. If you don't use this option to specify a label, you'll be asked to after the format is complete. Use this option with the format command to specify a volume label. The /d option only works when formatting with UDF v2.50. Use this format switch to duplicate metadata.

The /r: switch can only be used when using /fs: udf. If no revision is specified, 2.01 is assumed. This option forces the format to a specific version of UDF. Options for file-system include FAT, FAT32, exFAT, NTFS, or UDF. This option specifies the file system you want to format the drive: to. Use /l on dedupe-enabled drives with files greater than 100 GB or risk an ERROR_FILE_SYSTEM_LIMITATION error. This switch, which only works when formatting with NTFS, uses large size file records instead of small size ones. This format command option will cause the drive to dismount, if it has to, before the format. This is only available when formatting a drive to NTFS. You can enable file and folder compression using this format command option. This is not recommend in most situations. This option will quick format the drive, meaning it will be formatted without a bad sector search. This is the letter of the drive/partition that you want to format.

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