Avast Software Avast Internet Security EXE AvastUI.exe

Repair and Download AvastUI.exe

Last Updated: 11/25/2023
[Reading Time Required: 3.5 minutes]

Avast Antivirus files, such as AvastUI.exe, are considered a type of Win64 EXE (Executable application) file. They are associated with the EXE file extension, developed by Avast Software for Avast Antivirus.

The first version of AvastUI.exe was released for the Windows 10 Operating System on 09/30/2019 inside Avast Antivirus 19.8.2393. On 06/28/2019, version 19.8.4793.0 was released for Avast Internet Security 19.6.2383.

Below, you find comprehensive file information, instructions for simple EXE file troubleshooting, and list of free AvastUI.exe downloads for each available file version.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	AvastUI.exe
File Extension:	EXE file extension
Description:	Avast Antivirus
Object File Type:	Executable application
File Operating System:	Win32
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	AVAST Software
Software Program:	Avast Antivirus
Legal Copyright:	Copyright (c) 2019 AVAST Software

File Details
Character Set:	Windows, Latin1
Language Code:	Unknown (0009)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x527da0
Code Size:	6920704

View Other AvastUI.exe Information

File Info	Description
File Size:	12 MB
File Modification Date/Time:	2019:10:30 20:07:41+00:00
File Type:	Win64 EXE
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2019:09:18 09:54:01+00:00
PE Type:	PE32+
Linker Version:	14.16
Code Size:	6920704
Initialized Data Size:	5246976
Uninitialized Data Size:	0
Entry Point:	0x527da0
OS Version:	6.0
Image Version:	0.0
Subsystem Version:	6.0
Subsystem:	Windows GUI
File Version Number:	19.8.4793.0
Product Version Number:	19.8.4793.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Win32
Object File Type:	Executable application
File Subtype:	0
Language Code:	Unknown (0009)
Character Set:	Windows, Latin1
Company Name:	AVAST Software
File Description:	Avast Antivirus
File Version:	19.8.4793.0
Internal Name:	AvastUi.exe
Legal Copyright:	Copyright (c) 2019 AVAST Software
Product Name:	Avast Antivirus
Product Version:	19.8.4793.0

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are AvastUI.exe Error Messages?

AvastUI.exe Runtime Errors

Runtime errors are Avast Internet Security errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when AvastUI.exe is attempted to be loaded either when Avast Internet Security is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Avast Internet Security.

In most cases, AvastUI.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these AvastUI.exe error messages mean that Avast Internet Security was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Avast Internet Security will be unable to start without resolving these errors.

Some of the most common AvastUI.exe errors include:

AvastUI.exe - Bad Image.
AvastUI.exe Application Error.
AvastUI.exe could not be found.
AvastUI.exe could not be installed.
AvastUI.exe could not be launched. Class not registered.
AvastUI.exe could not be started.
AvastUI.exe failed to initialize properly.
AvastUI.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
AvastUI.exe is not a valid Win32 application.
AvastUI.exe is not running.
Cannot find AvastUI.exe.
Error starting program: AvastUI.exe.
Faulting Application Path: AvastUI.exe.
The file AvastUI.exe is missing or corrupt.
Windows failed to start - AvastUI.exe.

System Error

The program can’t start because AvastUI.exe is missing from your computer. Try reinstalling the program to fix this problem.

Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

Finding the source of the AvastUI.exe error is key to properly resolving these errors. Although most of these EXE errors affecting AvastUI.exe will happen during startup, occasionally you will encounter a runtime error while using Avast Antivirus. This can occur due to poor programming on behalf of AVAST Software, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of AvastUI.exe errors can occur if it has been accidentally moved, deleted, or corrupted by a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix AvastUI.exe Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your AvastUI.exe issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the AvastUI.exe error, please proceed to the Step 2 below.

Step 2: If recently installed Avast Internet Security (or related software), uninstall then try reinstalling Avast Internet Security software.

You can uninstall Avast Internet Security software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for Avast Internet Security 19.6.2383 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Avast Internet Security software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Avast Internet Security 19.6.2383

Avast Software

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many AvastUI.exe error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the AvastUI.exe error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your AvastUI.exe File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate AvastUI.exe file version. We maintain a comprehensive database of 100% malware-free AvastUI.exe files for every applicable version of Avast Internet Security. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download AvastUI.exe Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Avast Internet Security folder location:

Windows 10: C:\Program Files\AVAST Software\Avast\
Windows 10: C:\Program Files\AVAST Software\Avast\
Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve AvastUI.exe problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download AvastUI.exe Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying AvastUI.exe to your appropriate Windows system directory. Avast Software typically does not release Avast Internet Security EXE files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing AvastUI.exe and all other EXE files for Avast Internet Security. An incorrectly installed EXE file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Avast Internet Security 19.6.2383

File Name

Software Version

File Version

Architecture

AvastUI.exe

19.8.4793.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Avast Antivirus
Software Version:	19.8.4793.0
File Version:	19.8.4793.0
File Size:	12128648
File Date:	10/30/2019
MD5 Checksum:	f691d67a07decb156b7456df43d46dd8
SHA1 Checksum:	a62a3e0ea0ce568be9803c2107f28f8e92b274ed
SHA256 Checksum:	9faccd8b084fad6a2cf4b814ff9ce9694eb4c66a328283221bc12b26f0c29faa
CRC32:
File Directory Location:	C:\Program Files\AVAST Software\Avast\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	0.0
Initialized Data Size:	5246976
Linker Version:	14.16
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	10/30/2019

Avast Antivirus 19.8.2393

File Name

Software Version

File Version

Architecture

AvastUI.exe

19.8.4793.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Avast Antivirus
Software Version:	19.8.4793.0
File Version:	19.8.4793.0
File Size:	12128648
File Date:	10/30/2019
MD5 Checksum:	f691d67a07decb156b7456df43d46dd8
SHA1 Checksum:	a62a3e0ea0ce568be9803c2107f28f8e92b274ed
SHA256 Checksum:	9faccd8b084fad6a2cf4b814ff9ce9694eb4c66a328283221bc12b26f0c29faa
CRC32:
File Directory Location:	C:\Program Files\AVAST Software\Avast\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	0.0
Initialized Data Size:	5246976
Linker Version:	14.16
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	10/30/2019

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Files Related to AvastUI.exe

EXE Files Related to AvastUI.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
instup.exe	Avast Antivirus Installer	Avast Antivirus (19.8.4793.0)	1973688	C:\Windows\Temp\BF9587D3-03F0-466E-9566-FEFB57D...
RegSvr.exe	Avast Antivirus Installer	Avast Antivirus (19.8.4793.0)	2000264	C:\ProgramData\Microsoft\Windows\Start Menu\Pro...
SetupHost.exe	Modern Setup Host	Microsoft® Windows® Operating System (10.0.18362.418)	858936	C:\Program Files\Common Files\Microsoft Shared\...
aswOfferTool.exe	Avast Antivirus Offer Installation Tool	Avast Antivirus (19.8.4793.0)	3036088	C:\Windows\Temp\6DC09B04-098E-40F4-BCC8-C02CD1A...
asulaunch.exe	Software Updater launch helper	Avast Antivirus (19.8.4793.0)	56976	C:\ProgramData\Microsoft\Windows\Start Menu\Pro...

Other Files Related to AvastUI.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
CBS.log	Log	Avast Antivirus 19.8.2393	9977446	C:\Windows\Logs\CBS\
CBS.log	Log	Avast Internet Security 19.6.2383	1213701	C:\Windows\Logs\CBS\
SA.DAT	Game Data	Avast Antivirus 19.8.2393	6	C:\WINDOWS\Tasks\
machine.PNF	Precompiled INF	Avast Antivirus 19.8.2393	152316	C:\Windows\inf\
wsdprint.PNF	Precompiled INF	Avast Antivirus 19.8.2393	8172	C:\Windows\inf\

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