How To Fix Avast UI Failed To Load Error [Complete Guide]

There have been claims that computer safety is one of the most significant requirements for a genuine user. It is mandatory to keep your system protected from unwanted spam attacks by non-trusted sources. Moreover, you should consider keeping the software free from any suspicious files or applications. These can lead to some serious malware trouble in the future and can make the system crash. Therefore, users always tend to install an antivirus application on the PC to protect their files. There is no doubt in the fact that Avast is among the popular security providers in the market. The developers also claim to provide the best service to their customers when it comes to protecting personal data. Hence, you can fully rely on the software and conduct regular scans to be double sure. However, many users often complain about the situation where they get the Avast UI failed to load message on their PC. One more challenge people face with Avast is the Avast broken registry items. This will lead to the misbehavior of the Avast software and could lead to damaging the system data.


Therefore, our team of experts compiled a few methods that will help you to fix the Avast UI failed to load error.

See also: Avast Firewall Won’t Turn On? Here’s How to Fix It

What does Avast Antivirus UI Failed to Load Error mean?

Firstly, we need to understand the term ‘Fail to Load.’ Whenever you encounter this kind of error, it means that there was some issue in the loading files of an application. Hence, the application will not be able to function properly, and therefore it crashes without even starting. Also, you might not be able to perform tasks using that application. Now, a similar definition stands true in case you get Avast service is not responding while starting the software. This error has become more prominent after the last update initiated by the developers.

ui failed to load error
UI failed to load error

Further, your Windows operating system might have some files that are hindering the software. Also, you need to overlook the Windows configuration settings that might have been changed. Users often get this error message after they update their Avast antivirus software. It clearly means that your update did not install correctly on the PC. Thus, it is mandatory to remove the error and get back the system online.

See also: 10 Best Google Chrome Flags for Efficient Browsing

How to Solve Avast UI Failed to Load Error?

There have been a lot of claims made on the internet to solve this particular issue. However, you can’t rely on those solutions as sometimes the methods can be system-specific. In case you find messages like “Avast Well this is embarrassing” or “We have crashed,” you have to remove the error. This guide contains a couple of methods that will prove to be a lifesaver in this situation.

Change Startup Type Using Run Prompt

This method will work on about 95% of the systems and solve the problem. It directly performs a scan in the windows configurations using the Run command prompt. The steps for this method are,

Step 1

First, you need to open the Run prompt on the windows operating the system. You can search for the dialog box by typing run in the search box near the start button. Also, the shortcut key for the same is Win+R. Make sure that you are using the latest version of windows and no updates are pending on your system.

Step 2

As the dialog box opens, type in the command services.msc This command is case sensitive, so make sure you are typing it correctly. Then hit the Enter or press the OK button.

run prompt
run prompt

Step 3

This will take you to the Services screen, where the name of every software on your PC will be present. Next, you have to look for the column that says Avast Antivirus and right-click on it.

Step 4

Click on the Properties section that will open a new Avast Antivirus Properties page.

Step 5

The General tab will open by default, or you can manually transit to it. Click on the Startup Type option to open the dropdown box.

Step 6

Select the Automatic type among the available options and press Apply to accommodate the changes in the system.

set to automatic
Set to automatic

Step 7

Finally, close the Service page and restart the computer for better results. Try opening the Avast application as it will work properly.

See also: How to Cancel Avast VPN Trial | Cancel Avast Secure-line

Restart Avast Services by tapping the button

One of the most blatantly obvious things the user can do to fix avast UI failed to load windows 10 is to click the restart service button. This button appears along with the error of UI failed to load avast and is a natural step to try out. Most users would ignore that and try to close the program and restart it again through the desktop. But try restarting it by clicking on the green button.

Step 1

Launch the Services console and navigate to the “Avast Antivirus” service.

Step 2

Choose properties after right-clicking on the “Avast Antivirus” service. go to the tab labeled “General.” Ensure the service type is set as automatic.

Step 3

In case it’s set as Stopped, tap on the start button for the service to run. Followed bt rebooting the system and reloading the Antivirus UI.

The chances for it to work are slim, but maybe it could be your lucky day. So give it a shot. If the Avast UI Failed error persists to be a thorn in your side then unto the next solution.

Reinstall the Software

This is the most basic solution to every problem in Avast for PC. The software needs to be removed from your computer and then install back using the default settings. If you are not sure how to uninstall an application, follow these steps

Step 1

First, open the Control Panel by typing it in the search bar of your computer.

control panel
Control panel

Step 2

Then you have to click on the Programs section followed by clicking on the Uninstall or change a program option.

Step 3

Next, look for Avast Antivirus among all the present applications and double click it.


Step 4

Confirm for removing the software from your system. It will take a couple of minutes to remove it completely.

Step 5

You can finally download it again from the internet and install a fresh version of Avast Antivirus. This will most probably solve your problem of UI failed to load error.

Utilize the In-built Avast Repair Tool

If the above fix does not work, running the Avast repair program through the Avast setup wizard should be able to fix the Avast UI Failed to load error. The in-built Avast repair tool helps in resetting your software configuration by fixing or replacing program files which are outdated, corrupt, or missing.

Step 1

To access the repair option, the user can go to the add or remove program section in the control panel.

Step 2

After that, locate and right-click on Avast anti-virus program. After which clicking on change in the drop-down selection will pop open the Avast setup.

Step 3

Once within the configuration, select the option to repair the program. It will repair and update your Avast software.

A recommended restart should be done to ensure everything is settled down. This should fix the problem of the Avast UI Failed to load.


Does Avast Antivirus work on Mac?

It is a cross-platform internet security app with plenty of features that provide security on Windows, MacOS, iOS, as well as Android.

How to fix the Package Broken error on Avast?

This error occurs due to a corrupted or incomplete file. To fix it, first download your Avast product again. Then make sure that the file is complete and not corrupted. For detailed steps and methods, check out the support section of Avast:

Why does Avast service use a High CPU?

It is necessary for an antivirus to perform cleanups for the system, background scanning and virus removals. Thus, antiviruses like Avast utilize most CPU resources and sometimes consume 100% CPU.

How do I resolve the Avast Disk Storage Issue?

You may use the following fixes to resolve this issue: - Uninstall the Cleanup Tool of Avast Stop Avast Screensaver Scan Remove notifications of Updates Update Avast Restart a repaired Avast Program from Control Panel Disable unwanted add-ons provided by Avast

Is Avast paid?

Avast comes in both, paid and free versions. You may get premium features with a paid version of Avast Antivirus.

Are webmail accounts scanned by Avast?

Gmail and Yahoo, and other email accounts that are web-based, don’t allow antiviruses like Avast to scan your mails. But tools like Avast Web Shield still protect your computer from any kind of malware that your mails might contain. Similarly, Mail Shield scans malware in your mails on mail management softwares.

Can Avast Antivirus activate on its own?

Avast Antivirus application may prompt you to renew your subscription. However, you can also set it to automatic reinstallation after the end of 12 months.

Is Avast subscription transferable to other devices?

Indeed! You can use one subscription on a total of ten devices simultaneously. These devices should either be Windows, Android, iOS, or MacOs.

What is the Quarantine tool of Avast Antivirus Application?

Quarantine tool on Avast allows you to store any dangerous files in an isolated place, from where these files are not permitted to run on your device so that they don’t harm or damage your system with malicious codes.

Can Windows Firewall be turned off while using Avast Premium?

You can turn off Windows Firewall while using Avast Premium as it is not necessary. However, Avast recommends all users to keep every protection component provided by Avast enabled for better protection of their system.

Once installed, can Avast Antivirus Security be turned off?

While you can turn the protection off, it is only recommended for troubleshooting purposes. Users have the options to disable Avast Security for ten minutes, an hour, until the computer is restarted or to disable it permanently. Permanently disabling Avast Antivirus is not a good choice as per Avast.


We hope that your Avast will start functioning once again and you can protect your system’s data. In case the problem still persists, contact Customer Support regarding it. After all, it’s their fault for the Avast UI failed to load error on your PC.

See also: 5 Ways to Stop Avast From Blocking Websites (2021).

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