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How to fix 7zip headers error?

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  • 4 min read

Compressed archives are a quick and easy way of both storing and sharing large files and directories over the internet without straining internet connections or network bandwidth. However, since most compressed archives require specialised software to open, they might not instantly work on any PC you transfer them to for extraction. 

In this article, we’re talking about the 7zip header error, its causes and what you can do to fix the problem.

What causes this error?

The error can actually be triggered by a number of different reasons. Some of the most common causes include:

  • Corrupt ZIP archive.
  • Malware or virus infection. 
  • 7zip or other compatible ZIP extraction programs aren’t installed. 
  • Incomplete or corrupt installation. 
  • Storage issues. 

Also read: What to do when main SSD is full?

How to fix this?

Here are six fixes you can try out. 

Restart your PC

The first thing you should do in such situations is to try and restart your PC. Restarting your PC can fix a bunch of seemingly random issues that occur without any explanation whatsoever. 

Check the file

Next up, check to see if the file was downloaded (or transferred) properly. Compare the file size to another reference file to see if it’s complete. It’s recommended that you scrap the erroneous file and transfer it again from the source, whether it’s the internet or a local storage medium to ensure file integrity before trying to extract it again. 

Also read: Error: listen eaddrinuse: address already in use: Quick Fix 

Use Command Prompt to repair the file

You can also use the Windows Command Prompt to quickly repair corrupted or invalid ZIP files. Here’s how. 

Step 1: Press the Windows key and search for Command Prompt. Click Run as administrator from the search results.

Step 2: Run the following command. Make sure to replace with your actual ZIP file name. 

"C:\Program Files\WinZip\wzzip" –yf

Once the command has successfully run, try extracting your file again and it should work just fine.

Use another extraction tool

The issue can also arise from problems within the default Windows unzipping program or 7zip itself. A third-party extraction tool such as WinRAR can help resolve the problem as they’re often better at properly reading and extracting compressed archives. 

Also read: Web server is down error code 521: Quick Fix

Run the Check Disk utility

The error can very well be a sign of your boot drive failing to perform as it should. Try running the check disk utility to check whether or not your storage drives are, in fact, functional. 

You can refer to our detailed guide here on how to run the check disk utility

Scan for malware

The issue can also arise from malware infections. Run an antivirus or antimalware scan using the security program of your choice to see if that helps fix the problem. Here’s how you can run a full scan on your PC using Windows Security.

Step 1: Press the Windows key and search for Windows Security. Click the corresponding search result. 

What is Gstatic? A quick guide

Step 2: Click Virus & threat protection. 

What is Gstatic? A quick guide

Step 3: Click Scan options. 

What is Gstatic? A quick guide

Step 4: Select Full scan and click Scan now to start scanning your PC for malware. 

What is Gstatic? A quick guide

Restart your PC and try again. 

Also read: How to zip and unzip files in Windows 10?


Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here: