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 icacls.exe - Utilities - Vista

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icacls.exe is a part of Windows Vista.

Relate to: Security, File system, Console

Default location: %WinDir%\System32\icacls.exe

Useful information about: icacls.exe

Version: 6.0.6000.16386 (vista_rtm.061101-2205)

Size: 26624 (26K)

MD5: E28D89D14C60D00A98D05131FDB103A7

Icacls.exe is a tool for working with Access Control Lists (ACL).


ICACLS name /save aclfile [/T] [/C] [/L] [/Q]

store the the acls for the all matching names into aclfile for

later use with /restore.

ICACLS directory [/substitute SidOld SidNew [...]] /restore aclfile

[/C] [/L] [/Q]

applies the stored acls to files in directory.

ICACLS name /setowner user [/T] [/C] [/L] [/Q]

changes the owner of all matching names.

ICACLS name /findsid Sid [/T] [/C] [/L] [/Q]

finds all matching names that contain an ACL

explicitly mentioning Sid.

ICACLS name /verify [/T] [/C] [/L] [/Q]

finds all files whose ACL is not in canonical for or whose

lengths are inconsistent with ACE counts.

ICACLS name /reset [/T] [/C] [/L] [/Q]

replaces acls with default inherited acls for all matching files

ICACLS name [/grant[: r] Sid:perm[...]]

[/deny Sid: perm [...]]

[/remove[: g|:d]] Sid[...]] [/T] [/C] [/L] [/Q]

[/setintegritylevel Level: policy[...]]

/grant[: r] Sid:perm grants the specified user access rights. With :r,

the permissions replace any previouly granted explicit permissions.

Without : r, the permissions are added to any previously granted

explicit permissions.

/deny Sid: perm explicitly denies the specified user access rights.

An explicit deny ACE is added for the stated permissions and

the same permissions in any explicit grant are removed.

/remove[: [g|d]] Sid removes all occurrences of Sid in the acl. With

: g, it removes all occurrences of granted rights to that Sid. With

: d, it removes all occurrences of denied rights to that Sid.

/setintegritylevel [(CI)(OI)]Level explicitly adds an integrity

ACE to all matching files. The level is to be specified as one





Inheritance options for the integrity ACE may precede the level

and are applied only to directories.


Sids may be in either numerical or friendly name form. If a numerical

form is given, affix a * to the start of the SID.

/T indicates that this operation is performed on all matching

files/directories below the directories specified in the name.

/C indicates that this operation will continue on all file errors.

Error messages will still be displayed.

/L indicates that this operation is performed on a symbolic link

itself versus its target.

/Q indicates that icacls should supress success messages.

ICACLS preserves the canonical ordering of ACE entries:

Explicit denials

Explicit grants

Inherited denials

Inherited grants

perm is a permission mask and can be specified in one of two forms:

a sequence of simple rights:

F - full access

M - modify access

RX - read and execute access

R - read-only access

W - write-only access

a comma-separated list in parenthesis of specific rights:

D - delete

RC - read control

WDAC - write DAC

WO - write owner

S - synchronize

AS - access system security

MA - maximum allowed

GR - generic read

GW - generic write

GE - generic execute

GA - generic all

RD - read data/list directory

WD - write data/add file

AD - append data/add subdirectory

REA - read extended attributes

WEA - write extended attributes

X - execute/traverse

DC - delete child

RA - read attributes

WA - write attributes

inheritance rights may precede either form and are applied

only to directories:

(OI) - object inherit

(CI) - container inherit

(IO) - inherit only

(NP) - don't propagate inherit


icacls c: \windows\* /save AclFile /T

- Will save the ACLs for all files under c: \windows

and its subdirectories to AclFile.

icacls c: \windows\ /restore AclFile

- Will restore the Acls for every file within

AclFile that exists in c: \windows and its subdirectories

icacls file /grant Administrator: (D,WDAC)

- Will grant the user Administrator Delete and Write DAC

permissions to file

icacls file /grant *S-1-1-0: (D,WDAC)

- Will grant the user defined by sid S-1-1-0 Delete and

Write DAC permissions to file

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Constantly updated. Last update: October 13 2008

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