How to fix: Avast 42125 error in Windows 10

  • Avast Error 42125 error is one of the most common antivirus errors faced by Avast users.
  • The most common reason that can cause this error code is when Avast thinks it’s an archive that could cause a DoS attack when decompressed.
  • In some cases, Avast gives this error due to a corrupted system restore volume.
  • It is recommended to reinstall the Avast app to fix the “Zip archive corrupted” error.

Updated February 2024This tool will stop these errors and fix common problems: Get it at this link
  1. Download and install the software.
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  3. The tool will then correct the issues that were discovered.

Avast error 42125 is one of the most frequent anti-virus errors that is encountered by Avast users. Every PC and laptop users are aware of the fact that the virus is a big threat to the computer or the other systems that you use. The same thing also goes with malware. The most important and effective security software solution that you can use for getting some protection in your systems is Avast antivirus. However, your trust factor might get a setback, if you face some errors in the anti-virus system. There is no doubt that Avast error 42125 falls into this discussion.

An Avast 42125 error is one of the most common antivirus errors encountered by Avast users. The same is true with malware. It is a serious threat to your computer or other system if it is infected with a virus. It is crucial to use Avast Antivirus to protect your systems. Avast Error 42125, in our opinion, falls into this category as it is an important and effective software solution. However, you may lose faith in your antivirus system if you encounter flaws.

Decompression Bomb Avast

Files that unpack to an enormous amount of data are known as decompression bombs. They tend to give some false alarms from time to time, since it is difficult for them to be detected reliably.

If you are too bothered by Avast antivirus problems or you get these specific errors while using Avast antivirus, then this Techquack article is especially for you. Here you will find troubleshooting methods to solve all the problems you are facing.

What is the cause of the Avast 42125 error in Windows 10

What is the cause of the Avast 42125 error in Windows 10

This error code can be caused by two main reasons:

You’re dealing with a “decompression bomb”: The most common reason that can cause this error code is when Avast thinks it’s an archive that could cause a DoS attack when decompressed. In this case, you should discard the file completely and try to retrieve the same data from another source.

There is a problem with the Avast! Antivirus code that causes its logic error. This happens when AVAST Software s.r.o.’s code produces a logical error when handling information, despite correct input from the user.

File corruption in the system restore volume: in some cases, Avast gives this error due to a corrupted system restore volume. If this scenario applies, you may be able to solve the problem by temporarily disabling the system restore feature and allowing the system to boot without it to fix the problem.

How to fix Avast 42125 error in Windows 10

Updated: February 2024

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  • Step 1 : Install PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista).
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How to fix Avast 42125 error in Windows 10

Search for errors in your system

Errors in your system can also lead to error code 42125, so it is highly recommended to perform a system scan. This method has proven useful for many users. To do this, follow the steps below.

  1. Use the search bar to run the command line as an administrator.
  2. You can run sfc /scannow by typing its command in the expanded command line window and pressing Enter.
  3. Auto-run will be enabled for the program.
  4. Your system will be cleaned from any errors once it completes.

Updating your Windows system

The error 42125 Zip file is corrupted can be fixed by updating your Windows system. Consequently, you should update your Windows system to fix this issue.

(I’ve done this myself too many times): If you’re trying to fix something on your computer in a hurry, don’t just try what you see… Get a few other opinions if you’re using forums… The “fix” might make things worse… The forums are not checked for accuracy!!!!

To find the new update available, click Check for Updates on the right side of the window. Click on the update, then click Install to download and install it.

Reinstall the Avast app

Here is a guide on how to reinstall Avast if you have encountered the “Zip archive corrupted” error. A corrupt Avast download and incomplete Avast installation can cause error 42125.

  1. Then, click the OK button and type control in the Run window.
  2. Uninstall a program under the Programs section of the Control Panel.
  3. Avast should be uninstalled when you right-click on it.
  4. You will then be able to complete the process by following the instructions that appear.
  5. You can download Avast by going to the official site and clicking on Download.
  6. Once it has been downloaded, follow the steps to install it.

Update device drivers

An outdated device driver can cause error 42125 on Windows 10. There are various reasons why the device driver might not work. In this case, you should update it.

  1. Select each display adapter by double clicking it in the Device Manager.
  2. Select Update Driver from the context menu when you right-click the driver under the display adapters.
  3. Choose the option to automatically check for updates in the window that appears.
  4. You can then complete the process by following the instructions on the screen.

Remove unnecessary files from your system

To avoid various errors, including error 42125, you should delete temporary and unwanted files regularly while browsing the web.

This guide is a guide to help you get rid of any unwanted files from your computer to prevent error 42125 zip archive corrupted from occurring again.

  1. Run the command line as an administrator by typing cmd in the search box and then right-clicking it.
  2. Enter cleanmgr in the next window. To continue, click Yes in the next window.
  3. When you click OK, the files and folders will automatically be deleted. Select the unusable files or folders and click OK.

RECOMMENATION: Click here for help with Windows errors.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.