84,488,480 programs installed

Should I remove avast! Antivirus?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #6,487
United States Rank #14,488
Reach 0.0687%
Lifespan of installation (until removal)
< 10.14 days
299.01 days >
Average installed length: 157.11 days


4.8 93.58%
4.7 6.13%
4.6 0.07%
4.5 0.22%

avast! Antivirus

What is avast! Antivirus?

Avast! Antivirus is a full-featured antivirus and anti-spyware scanning and removal product that offers a web-reputation browser extension as well as virtualization technology. Accurate threat updates via Avast updates are delivered automatically using PUSH update technology.


The most used version is 4.8, 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. The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The main program executable is ashavast.exe. The software installer includes 53 files and is usually about 116.47 MB (122,128,443 bytes).

Program detailsProgram details

URL: www.avast.com
Installation folder: C:\Program Files1\ALWILS~1\Avast4
Uninstaller: C:\Program Files\Alwil Software\Avast4\aswRunDll.exe "C:\Program Files\Alwil Software\Avast4\Setup\setiface.dll",RunSetup
Estimated size: 116.47 MB

Program filesFiles installed by avast! Antivirus

Program executable:ashavast.exe
Name:avast! Antivirus
Splash screen for Avast!
Path:C:\Program Files\alwil software\avast4\ashavast.exe
Additional files:
  • Aavm4h.dll (by ALWIL Software) - avast! Antivirus (avast! Asynchronous Virus Monitor (AAVM))
  • AavmGuih.dll (by ALWIL Software) - avast! AAVM GUI Library
  • AavmRpch.dll - avast! AAVM Remote Procedure Call Library
  • AhResMai.dll - avast! e-Mail Scanner AAVM Provider Library
  • ahResMes.dll - avast!4 Messenger scanner AAVM Provider Library
  • AhResNS.dll - avast!4 Network Shield AAVM Provider Library
  • AhResOut.dll - avast! MS Outlook/Exchange AAVM Provider Library
  • ahResP2P.dll - avast!4 P2P Shield AAVM Provider Library
  • AhResStd.dll - avast! Standard Shield AAVM Provider Library
  • AhResWS.dll - avast! HTTP Scanner AAVM Provider Library
  • AhRuiMai.dll - avast! e-Mail Scanner provider GUI
  • ahRuiMes.dll - avast!4 Messenger scanner AAVM Provider GUI Library
  • AhRuiNS.dll - avast!4 Network Shield AAVM Provider GUI Library
  • AhRuiOut.dll - avast! MS Outlook/Exchange AAVM Provider GUI Library
  • ahRuiP2P.dll - avast!4 P2P Shield AAVM Provider GUI Library
  • AhRuiStd.dll - avast! Standard Shield AAVM Provider GUI Library
  • AhRuiWS.dll - Avast! WWW Scanner AAVM Provider GUI Library
  • ashBase.dll - Basic Functionality Module
  • ashBug.exe - Bug Info Sending Utility
  • ashCfgP.dll - aswCfgP DLL
  • ashCfgT.dll - aswCfgT DLL
  • ashChest.dll - aswChest controls
  • ashChest.exe - aswChestInterface application
  • ashDisp.exe - avast! service GUI component
  • AhAScr.dll - avast! Script Blocking library for Windows Scripting Interface
  • AhJsctNs.dll - avast! Script Blocking library for Netscape/Mozilla
  • AhResJs.dll - avast! Script Blocking AAVM Provider Library
  • AhRuiJs.dll - avast! Script Blocking AAVM Provider Library GUI Library
  • ashCmd.exe - avast! Command line
  • ashCnsnt.exe - avast! Consent dialog helper application
  • ashEnhcd.exe - Enhanced User Interface of avast! antivirus
  • ashLogV.exe - avast! Log Viewer

Program behaviorsBehaviors exhibited

Startup File (User Run)
  • ashDisp.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'TVnoop363589.exe' and executes as "C:\DOCUME~1\user\LocalS~1\Temp\TVnoop363589.exe" /XML="C:\DOCUME~1\user\LocalS~1\Temp\317.tmp" /ROS /STP=0:2.
Startup File (All Users Run)
  • ashDisp.exe is loaded in the all users (HKLM) registry as a startup file name 'avast!' which loads as C:\Program Files1\ALWILS~1\Avast4\ashDisp.exe.
Windows Firewall Allowed Program
  • ashAvast.exe is added as a firewall exception for 'C:\Program\Alwil Software\Avast4\ashAvast.exe'.

Program resource utilizationResource utilization averages

Memory:6.9 MB
21.09 MB average
Total CPU:0.0005228720%
0.031193% average
Kernel CPU:0.00047760%
0.016088% average
User CPU:0.00004528%
0.015104% average
70 average

How do I remove avast! Antivirus?

You can uninstall avast! Antivirus 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 avast! Antivirus, 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 avast! Antivirus.

Win 7 (SP1) 46%
Win 7 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 62.22%
Windows XP 18.48%
Windows 10 10.38%
Windows Vista 8.84%
Windows Server 2003 0.07%
Which OS releases does it run on?
Windows 7 Ultimate 34.10%
Microsoft Windows XP 18.54%
Windows 7 Home Premium 14.52%
Windows 7 Professional 8.04%
Windows Vista Home Premiu... 6.48%
Windows 7 Home Basic 2.46%

Distribution by countryGeography

13.62% of installs come from the United States
Which countries install it?
  United States 13.62%
  Taiwan 10.66%
  France 10.23%
  India 4.25%
  MA 3.17%
  Brazil 3.17%
  Egypt 3.03%
  Mexico 2.95%
  United Kingdom 2.59%
  DZ 2.45%
  Spain 2.45%
  Iran 2.38%
  Philippines 2.23%
  Italy 2.16%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 24.73%
Acer 23.14%
Dell 18.15%
ASUS 8.53%
Toshiba 4.26%
Samsung 4.14%
American Megatrends 2.68%
Lenovo 2.07%
Intel 2.07%
Sahara 1.10%
Common models
HP Pavilion dv6 Notebook ... 4.59%
HP Pavilion g6 Notebook P... 3.28%
Dell Inspiron N5110 2.95%
MSI MS-7592 2.30%
TOSHIBA Satellite C660 2.30%
HP Pavilion g4 Notebook P... 2.30%

About AVAST Software

avast! antivirus software provides PC virus protection.
Publisher URL: www.avast.com


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