84,488,480 programs installed

Should I remove Cisco NAC Agent?

What percent of users and experts removed it?
9% remove it91% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #7,577
United States Rank #3,935
Reach 0.0548%


VersionDistribution 0.56% 1.57% 1.85% 0.56% 15.65% 4.17% 5.28% 12.78% 2.78% 4.91% 6.94% 1.57% 0.37% 1.02% 0.09% 0.19% 1.11% 0.09% 0.37% 0.46% 0.19% 6.30% 3.06% 1.39% 2.22% 2.50% 2.78% 3.06% 3.06% 0.09% 1.57% 0.83% 4.07% 2.13% 0.46% 2.96% 0.65% 0.37%

Other programs by Cisco Systems

Cisco NAC Agent

What is Cisco NAC Agent?

Cisco NAC is a network admission control (NAC) system developed by Cisco Systems designed to produce a secure and clean network environment. The system usually installs an application known as the Clean Access Agent on computers that will be connected to the network. This application, in conjunction with both a Clean Access server and a Clean Access Manager, has become common in many universities and corporate environments today. It is capable of managing wired or wireless networks in an in-band or out-of-band configuration mode, and Virtual Private networks (VPN) in an in-band only configuration mode.


The most used version is, with over 98% of all installations currently using this version. Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The main program executable is NACAgent.exe. The software installer includes 17 files and is usually about 20.87 MB (21,882,948 bytes).

Program detailsProgram details

URL: www.cisco.com
Help link: rescue.vpn.va.gov
Installation folder: C:\Program Files\Cisco\Cisco NAC Agent\
Uninstaller: MsiExec.exe /X{049118C7-3869-4D39-958D-FC5D2735FC4D}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 20.87 MB

Program filesFiles installed by Cisco NAC Agent

Program executable:NACAgent.exe
Name:Cisco NAC Agent
Cisco NAC Agent Service
Signed by:Cisco Systems
Path:C:\Program Files\Cisco\Cisco NAC Agent\NACAgent.exe
Additional files:
  • NacAgent.dll - Cisco NAC Agent (Cisco NAC Agent DLL)
  • NACAgent.exe - Cisco NAC Agent Service
  • NACAgentDiags.exe - Cisco NAC Agent Diagnostics
  • NACAgentRemediation.exe - Cisco NAC Agent Remediation
  • NACAgentUI.exe - Cisco NAC Agent UI
  • Impl_SoftwareProductLib.dll - Impl_SoftwareProduct Dynamic Link Library
  • AVManagerUnified.dll (by OPSWAT) - AVManagerUnified Module
  • Impl_FirewallLib.dll (by OPSWAT) - Implementation Support
  • FWManager.dll - FWManager Module
  • 64bitProxy.exe - OESIS Local (64BitProxy)
  • CoreUtils.dll - CoreUtils Library
  • Impl_AntivirusLib.dll
  • OESISCore.dll - OESISCore Library

Program behaviorsBehaviors exhibited

Scheduled Task
  • NACAgentUI.exe is scheduled as a task with the class '{0B29A765-0A29-4FA1-AB75-FE4EC469ED42}' (runs on registration).
Scheduled Task (Boot/Login)
  • NACAgentUI.exe is automatically launched at startup through a scheduled task named 2.
  • NACAgent.exe runs as a service named 'Cisco NAC Agent' (NACAgent) "Cisco Network Admission Control Agent".
Startup File (All Users Run)
  • NACAgentUI.exe is loaded in the all users (HKLM) registry as a startup file name 'NACAgentUI' which loads as C:\Program Files\Cisco\Cisco NAC Agent\NACAgentUI.exe.

Program resource utilizationResource utilization averages

Memory:6.66 MB
21.09 MB average
Total CPU:0.0001064143%
0.031193% average
Kernel CPU:0.00002922%
0.016088% average
User CPU:0.00007719%
0.015104% average
70 average
I/O reads/min:2.86 MB
435.61 KB average
I/O writes/min:1.84 KB
105.02 KB average
Memory:15.15 MB
Total CPU:0.0010461639%
Kernel CPU:0.00067753%
User CPU:0.00036863%
CPU cycles/sec:4,344,423
I/O reads/min:9.83 KB

How do I remove Cisco NAC Agent?

You can uninstall Cisco NAC Agent from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Cisco NAC Agent, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Cisco NAC Agent.

Win 7 (SP1) 66%
Win Vista 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 9%
Keep it 91%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 69.38%
Windows 10 24.05%
Windows Vista 4.81%
Windows XP 1.76%
Which OS releases does it run on?
Windows 7 Home Premium 43.31%
Windows 7 Professional 14.41%
Windows 8.1 9.20%
Windows 7 Enterprise 8.36%
Windows 10 Home 5.48%
Windows Vista Home Premiu... 3.35%

Distribution by countryGeography

88.25% of installs come from the United States
Which countries install it?
  United States 88.25%
  Canada 1.63%
  Thailand 0.99%
  United Arab Emirates 0.64%
  Mexico 0.58%
  United Kingdom 0.52%
  Saudi Arabia 0.52%
  India 0.47%
  Singapore 0.35%
  Kuwait 0.35%
  Taiwan 0.35%
  Ireland 0.35%
  Brazil 0.23%
  Hungary 0.23%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 33.93%
Dell 27.24%
Toshiba 10.75%
ASUS 9.56%
Lenovo 7.41%
Acer 6.81%
Samsung 3.23%
Alienware 0.60%
Sony 0.48%
Common models
HP Pavilion dv6 Notebook ... 8.57%
HP Pavilion g6 Notebook P... 4.40%
HP Pavilion dv7 Notebook ... 3.74%
Dell Inspiron N5110 3.52%
HP 2000 Notebook PC 3.30%
Dell Inspiron 1545 3.30%

About Cisco Systems

Cisco designs, manufactures, & sells networking equipment whose portfolio of products & services is focused on market segments, Enterprise & Service Provider, Small Business & the Home.
Publisher URL: www.cisco.com


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