Sysinternals File and Disk Utilities

AccessChk
This tool shows you the accesses the user or group you specify has to files, Registry keys or Windows services.

AccessEnum
This simple yet powerful security tool shows you who has what access to directories, files and Registry keys on your systems. Use it to find holes in your permissions.

CacheSet
CacheSet is a program that allows you to control the Cache Manager's working set size using functions provided by NT. It's compatible with all versions of NT.

Contig
Wish you could quickly defragment your frequently used files? Use Contig to optimize individual files, or to create new files that are contiguous.

Disk2vhd
Disk2vhd simplifies the migration of physical systems into virtual machines (p2v).

DiskExt
Display volume disk-mappings.

DiskMon
This utility captures all hard disk activity or acts like a software disk activity light in your system tray.

DiskView
Graphical disk sector utility.

Disk Usage (DU)
View disk usage by directory.

EFSDump
View information for encrypted files.

FindLinks
FindLinks reports the file index and any hard links (alternate file paths on the same volume) that exist for the specified file. A file's data remains allocated so long as at it has at least one file name referencing it.

Junction
Create Win2K NTFS symbolic links.

LDMDump
Dump the contents of the Logical Disk Manager"s on-disk database, which describes the partitioning of Windows 2000 Dynamic disks.

MoveFile
Schedule file rename and delete commands for the next reboot. This can be useful for cleaning stubborn or in-use malware files.

NTFSInfo
Use NTFSInfo to see detailed information about NTFS volumes, including the size and location of the Master File Table (MFT) and MFT-zone, as well as the sizes of the NTFS meta-data files.

PageDefrag
Defragment the Windows paging file and Registry hives.

PendMoves
See what files are scheduled for delete or rename the next time the system boots.

Process Monitor
Monitor file system, Registry, process, thread and DLL activity in real-time.

PsFile
See what files are opened remotely.

PsTools
The PsTools suite includes command-line utilities for listing the processes running on local or remote computers, running processes remotely, rebooting computers, dumping event logs, and more.

SDelete
Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.

ShareEnum
Scan file shares on your network and view their security settings to close security holes.

Sigcheck
Dump file version information and verify that images on your system are digitally signed.

Streams
Reveal NTFS alternate streams.

Sync
Flush cached data to disk.

VolumeID
Set Volume ID of FAT or NTFS drives.