Error Codes Wiki

Browser Download Errors — Failed, Blocked, and Network Errors During Download

Warninggeneral

Overview

Fix browser download errors including 'Failed - Network error', 'Failed - Virus detected', blocked downloads, and incomplete file downloads.

Key Details

  • Download failures can be caused by network issues, browser security, antivirus, or server problems
  • Chrome blocks downloads from insecure (HTTP) origins on HTTPS pages (mixed content downloads)
  • 'Failed - Virus detected' means Windows Defender or antivirus flagged the file
  • Large file downloads may fail due to network interruption without resume support
  • Browser download location: default is Downloads folder, customizable in browser settings

Common Causes

  • Network connection dropped during download (WiFi interruption, server timeout)
  • Antivirus blocking the download as potentially malicious
  • Browser blocking mixed content download (HTTP file from HTTPS page)
  • Server not supporting range requests, preventing download resume after interruption
  • Insufficient disk space on the download destination drive

Steps

  1. 1Retry the download — transient network errors often resolve on retry
  2. 2Pause and resume: if the download supports it, use the browser's resume feature
  3. 3Check antivirus quarantine: the file may be in the antivirus quarantine, not deleted
  4. 4Try right-click > Save Link As to download directly instead of letting the browser handle it
  5. 5Disable antivirus temporarily for trusted downloads from known sources
  6. 6Use a download manager (e.g., Free Download Manager, wget, curl) for large files — they support resume
  7. 7Check free disk space on the destination drive

Tags

downloadfailednetwork-errorvirusblocked

More in General

Frequently Asked Questions

Chrome blocks downloads it considers unsafe: executables from HTTP sources, files flagged by Safe Browsing, or mixed content downloads. Click the blocked download notification for options to keep the file.