What is No More 404

No More 404 is a malicious browser extension that masquerades as a tool designed to help users avoid HTTP errors and review site performance data. This adware can infect popular web browsers such as Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge. Once installed, it bombards users with intrusive advertisements that can disrupt browsing activities and diminish system performance. These ads often promote unreliable or harmful software, online scams, and even trigger downloads of additional malware. More concerningly, No More 404 has data-tracking capabilities that collect sensitive information like browsing histories, search engine queries, and even personal details. This harvested data can be sold to third parties, posing serious privacy and security risks. Users are strongly advised to remove this extension immediately to protect their devices and personal information.

No More 404 extension

How No More 404 infects computers

No More 404 adware typically infiltrates computers through deceptive methods such as bundling with free software downloads or being promoted on misleading websites. Users often encounter it via redirects triggered by intrusive ads, rogue advertising networks, or misspelled URLs. The adware can also be distributed through spam browser notifications or by visiting compromised websites that force-open the installation without user consent. Once installed, No More 404 integrates into the browser and begins displaying intrusive ads, tracking user data, and potentially leading to further malware infections. To avoid this, it’s crucial to download software only from verified sources and carefully review installation processes, opting out of any additional unwanted applications.

  1. Download No More 404 Removal Tool
  2. Remove No More 404 from Control Panel and Applications
  3. Remove No More 404 extensions from browsers
  4. Reset browser search and homepage settings
  5. Alternative way to remove No More 404 search redirects
  6. Clean browser shortcuts from No More 404
  7. How to protect from threats like No More 404

Download Removal Tool for Windows

Download Removal Tool

compatible with microsoft

To remove No More 404 completely, we recommend you to use SpyHunter 5. It detects and removes all files, folders, and registry keys of No More 404 and several millions of other adware, hijackers, toolbars. The trial version of Spyhunter 5 offers virus scan and 1-time removal for FREE.

Download Removal Tool for Mac

Download SpyHunter for Mac

To remove No More 404 completely, we recommend you to use SpyHunter for Mac. It can help you remove files, folders, and registry keys of No More 404 and uninstall hijackers, toolbars, and unwanted add-ons from the Safari browser. The trial version of SpyHunter for Mac offers virus scan and 1-time removal for FREE.

Remove No More 404 manually for free

Here is a manual step-by-step tutorial for full No More 404 removal from your computer. This works 99% and was checked with the latest versions of the No More 404 an installer on operating systems with the latest updates and browser versions.

Note: No More 404 can be installed as Google Chrome extension as Administrator (you may see Installed by enterprise policy or Your browser is managed by your organization inscription near it), and this will not allow removal. Therefore, before starting removal process, perform these actions:

  1. Start the Command Prompt by clicking the Start menu button and typing command prompt (or just searching for “command prompt” in Windows 10 search field). Right click on the Command Prompt result and choose Run as Administrator.
  2. start command prompt as administrator

  3. Type in and execute the following commands:


    rd /S /Q "%WinDir%\System32\GroupPolicyUsers"
    rd /S /Q "%WinDir%\System32\GroupPolicy"
    gpupdate /force

  4. update group policy in windows

Remove No More 404 from Control Panel or Applications

To start removing No More 404 you should uninstall it using Control Panel. It can be present by different names – “No More 404”. It should uninstall correctly, however, we recommend you to use IObit Uninstaller to clean leftover items after uninstalling. Here are instructions for Windows XP, Windows 7, Windows 8, Windows 10, Windows 11, or Mac.

Remove No More 404 from Windows XP:

  1. Click on Start button.
  2. Choose Control Panel.
  3. Click Add or Remove Programs.
  4. Find No More 404-related or other suspicious program.
  5. Click Uninstall.

Remove No More 404 from Windows 7:

  1. Click Start button.
  2. Then go to Control Panel.
  3. Click Uninstall a Program.
  4. Find No More 404-related or other suspicious program and click Uninstall.

Remove No More 404 from Windows 8:

  1. Hover mouse pointer to the bottom-right corner to see Menu.
  2. Click Search.
  3. After that click Apps.
  4. Then Control Panel.
  5. Click Uninstall a Program under Programs.
  6. Find No More 404-related or other suspicious program, click Uninstall.

Remove No More 404 from Windows 10:

There are 2 ways to uninstall No More 404 from Windows 10

Way one
  1. Click on the Start button.
  2. In opened menu choose Settings.
  3. Click on the System tile.
  4. Click Apps & features and locate No More 404-related or other suspicious program in the list.
  5. Click on it and then click Uninstall button near it.
Way two (classic)
  1. Right-click on the Start button.
  2. In opened menu choose Programs and Features.
  3. Locate No More 404-related or other suspicious program in the list.
  4. Click on it and then click Uninstall button above.

Remove No More 404 from Windows 11:

  1. Right-click on the Start button.
  2. In opened menu choose Settings.
  3. Click on the Apps tab on the left side.
  4. Click Apps & features and locate No More 404-related or other recently installed suspicious program in the list.
  5. Click on 3-dots icon near it and then click Uninstall button near it.
  6. Depending on the type of application (Windows Store app or classic Win32 app) it will be removed immediately or you will need to confirm the action and go through standard uninstall procedure.
  7. Remove No More 404 from Mac:

    1. In the Finder sidebar, click Applications.
    2. No More 404 might have an Uninstaller.
    3. Otherwise, drag No More 404 from the Applications folder to the Trash (located at the end of the Dock).
    4. Then choose Finder > Empty Trash.

    Cannot uninstall No More 404 in Windows

    In some cases, No More 404 won’t uninstall and gives you the message, that “You do not have sufficient access to uninstall No More 404. Please, contact your system administrator” when you try to remove it from Control Panel or “Access denied” error when removing the No More 404 folder and files. This happens because the process or service does not allow you to do it. In this case, I will recommend you to use SpyHunter 5 or Malwarebytes or uninstall No More 404 in Safe Mode. To boot in Safe Mode do the following:

    1. Reboot your computer.
    2. While it starts booting press F8 button.
    3. This will open Advanced Boot Options menu.
    4. Choose Safe Mode and wait until Windows loads.
    5. Go to Control Panel > Uninstall a program and remove No More 404 or other suspicious program

    >> See detailed instructions and video tutorial on how to boot in Safe Mode

    Cannot uninstall No More 404 in MacOS

    If you can’t uninstall No More 404 using instructions above, or it keeps coming back, you can use free AppCleaner for Mac to remove all residual data and libraries of No More 404. Follow instructions below:

    1. Download free AppCleaner.
    2. Drag No More 404 from Applications folder to AppCleaner window.
    3. Choose files and folders you want to remove along with No More 404.
    4. Click Delete button.

    Remove malicious add-ons from your browsers

    Uninstalling No More 404 from Control Panel or Applications often does not bring the desired effect. It sometimes has a browser extension and it may still be active in Google Chrome and Mozilla Firefox. Here are instructions on how to remove No More 404 extension from your browsers manually.

    Google Chrome:

    1. Start Google Chrome browser
    2. In address box type (or copy-paste) chrome://extensions.
    3. Find No More 404 extension.
    4. Click the Remove button to remove them.
    5. Also remove other suspicious extensions from the list.

    Mozilla Firefox:

    1. Start Mozilla Firefox browser.
    2. In address box type (or copy-paste) about:addons.
    3. Find No More 404 extension.
    4. Click three-dots icon near it and choose Remove in the menu.
    5. In opened dialog window click Remove button to confirm the action.
    6. Remove all suspicious extensions from the list.

    Safari:

    1. Start Safari on your Mac, click Safari to open drop-down menu and choose Preferences
    2. Click Extensions tab.
    3. Find No More 404 extension.
    4. Click Uninstall button to remove it.

    Microsoft Edge:

    1. Start Microsoft Edge browser.
    2. In address box type (or copy-paste) edge://extensions.
    3. Find No More 404 extension.
    4. Click Remove link under the name of extension.
    5. In opened dialog window click Remove button to confirm the action.
    6. Remove all suspicious extensions from the list.

    Internet Explorer (9, 10, 11):

    Note: There is no feature to remove browser extensions from browser in latest version of Internet Explorer. To remove No More 404 from Internet Explorer, please, perform instructions for uninstalling program from Control Panel. To disable No More 404, please, do the following:

    1. Open Internet Explorer.
    2. Click on gear/asterisk icon in the top-right corner.
    3. In opened menu Manage Add-ons.
    4. Select Toolbars and Extensions.
    5. Click Disable No More 404 or other suspicious extensions.
    6. Also disable other suspicious extensions from the list.

    Opera Browser:

    Generally, No More 404 does not install in Opera browser however you can always double check. Do the following:

    1. Start Opera browser.
    2. Go to Tools > Extensions > Manage Extensions.
    3. Find No More 404 or other suspicious extensions.
    4. Click Uninstall button.
    5. Also remove other suspicious extensions from the list.

    Reset browsers settings (homepage, default search)

    No More 404 installs a search engine, that hijacks your browsers. Here is the instruction to reset your browser’s homepage, new tab, and search engine to default values.

    Google Chrome:

    1. Start Google Chrome browser
    2. In address box type (or copy-paste) chrome://settings.
    3. On the left panel expand Advanced options.
    4. Choose Reset and clean up.
    5. Click on Restore settings to their original defaults link and confirm by clicking Reset button.

    Mozilla Firefox:

    1. Start Mozilla Firefox browser.
    2. In address box type (or copy-paste) about:support.
    3. Click Refresh Firefox… button.
    4. Click Refresh Firefox button in opened dialog window to confirm.

    Reset Safari:

    1. Start Safari on your Mac, click Safari to open drop-down menu and choose Preferences
    2. Go to the Privacy section of Safari’s preferences.
    3. Click Remove All Website Data button.
    4. In opened window click Remove Now button to remove data stored by websites in Safari.
    5. Go to the Advanced section of Safari’s preferences.
    6. Click the Show Develop menu in menu bar option.
    7. In the menu click Develop and select Empty Caches from this menu.
    8. Again, go to Safari menu and choose Clear History….
    9. Choose to clear all history and click Clear History button.

    Microsoft Edge:

    1. Start Microsoft Edge browser
    2. Click on 3-dots icon in the top-right corner and choose Settings.
    3. On the left panel find and click Reset settings option.
    4. Click on Restore settings to their default values link and confirm by clicking Reset button.

    Internet Explorer (9, 10, 11):

    1. Start Internet Explorer.
    2. Click on gear/asterisk icon in the top-right corner.
    3. In opened menu choose Internet options.
    4. Click Advanced tab.
    5. Click Reset button.
    6. Choose Delete personal settings and click Reset.

    Opera Browser:

    1. Start Opera browser and click on Opera icon in the top-left corner.
    2. Choose Settings and click Advanced on the left side and choose Browser.
    3. Scroll down to the very bottom and click on Restore settings to their original defaults link.
    4. Confirm by clicking Reset button.

    How to block ads and pop-ups, promoting No More 404

    No More 404, in most cases, is promoted by ads and pop-ups on doubtful websites. These sites can redirect users’ browsers to No More 404 ads, generating advertising revenue for the attackers. The malware is often offered through these ads, leaving users puzzled about the origin of the software. In some cases, users may unknowingly install the No More 404 extension, which then injects advertisements into the websites they visit and redirects their search queries. Additionally, the malware can be distributed through other channels such as peer-to-peer file-sharing networks, misleading ads, and compromised or shady websites that trigger automatic downloads To protect your PC and browsers from phishing websites, pop-up ads, banners, malicious scripts it is recommended to use AdGuard. Download free trial here:

    Download AdGuard for Windows Download AdGuard for Mac

    How to protect from threats, like No More 404, in future

    Be careful surfing the internet and downloading software, as programs like No More 404 may become a real headache as they are hard to remove and break your privacy. To keep safe from such threats we recommend you always use antivirus and one of the anti-malware programs available on the market. One of the best anti-virus programs is SpyHunter 5. It can protect your PC from threats like No More 404.

    Download SpyHunter for Windows Download SpyHunter for Mac
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James Kramer
Hello, I'm James. My website Bugsfighter.com, a culmination of a decade's journey in the realms of computer troubleshooting, software testing, and development. My mission here is to offer you comprehensive, yet user-friendly guides across a spectrum of topics in this niche. Should you encounter any challenges with the software or the methodologies I endorse, please know that I am readily accessible for assistance. For any inquiries or further communication, feel free to reach out through the 'Contacts' page. Your journey towards seamless computing starts here