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How to Fix Pop-up Ads and Strange Websites in Chrome Caused by Dangerous Extensions (Adware)
Resolve annoying pop-up ads and unexpected search redirects in Chrome caused by dangerous extensions (Adware). Learn how to safely and systematically check, remove extensions, scan for viruses, reset your browser, and secure your Google account.
Often, work interruptions aren't due to a slow computer, but rather bothersome pop-up ads or unexpected redirects to strange websites when searching for information. These issues typically stem from Chrome extensions embedded with Adware. This article from the SyncTech Solution team will guide you through the causes and step-by-step solutions to help you restore normal and secure browser usage.
Understand Before You Fix: How Adware in Extensions Works?
Adware, short for Advertising-supported software, is a program designed to display unwanted advertisements. It often comes bundled with free software or browser extensions that offer appealing functions, such as video downloaders, games, or photo editing tools.
When you install an extension containing Adware, it gains permission to read and modify data on the websites you visit, enabling it to:
1. Insert Ads: Display pop-up ads, banners, or promotional messages on pages that normally wouldn't have them.
2. Search Hijacking: When you search via Google, it secretly redirects the results to its own search engine, which is often filled with ads and untrustworthy links.
3. Change Homepage: Set your browser's homepage or new tab page to its own website without your permission.
While most Adware isn't a direct virus aimed at destroying data, it creates annoyance, reduces work efficiency, and, importantly, violates your privacy by collecting your browsing data for its own benefit.
Before You Start: Get Ready
To ensure a smooth resolution without losing important data, prepare as follows:
* Backup Important Data: Although resetting Chrome won't delete bookmarks or passwords synced to your Google account, for maximum safety, ensure you are signed into your Google account and critical data synchronization is enabled. Alternatively, you can export your bookmarks as a separate file.
* Note Essential Extension Names: Review the list of installed extensions and jot down the names of those truly essential for your work, as you may need to reinstall them after resetting.
Safe Solutions: 5 Steps to Eliminate Adware
Follow these steps in order to resolve the issue effectively.
Step 1: Check with Incognito Mode
* WHAT: Open a new window in Incognito mode to test if the problem is indeed caused by an extension.
* WHERE/HOW: Click the three-dot menu in the top-right corner of Chrome > select "New Incognito window".
* WHY: Normally, this mode disables all extensions. If you use Incognito mode and don't encounter pop-up ads or strange websites, it's a clear sign that an extension is the root cause of the problem.
* EXPECTED RESULT: You can browse normally without ads or redirects interfering.
Step 2: Remove Suspicious Extensions
* WHAT: Find and remove extensions you didn't install, don't recognize, or recently installed before the problem started.
* WHERE/HOW: Click the three-dot menu > "Extensions" > "Manage Extensions". Go through the entire list. If you find an unfamiliar or suspicious extension, click "Remove".
* WHY: This step directly eliminates the source of the problem. If you're unsure which one is the culprit, try disabling them one by one (toggle the blue switch to gray), then return to a normal webpage to see if the problem disappears. Once you find the problematic extension, remove it.
* EXPECTED RESULT: The problematic extension will be removed from Chrome, and the ad issue may disappear immediately.
Step 3: Reset Chrome Browser Settings
* WHAT: Restore all Chrome settings to their original, freshly installed state.
* WHERE/HOW: Go to "Settings" > "Reset and clean up" > "Restore settings to their original defaults", then confirm.
* WHY: Adware often modifies settings such as the homepage, search engine, or notification permissions. Resetting will clear all these settings back to normal without affecting your bookmarks, browsing history, or saved passwords.
* EXPECTED RESULT: Chrome will revert to its default settings, the homepage will be Google Search, and no strange settings will remain. You will need to re-enable essential extensions.
Step 4: Scan Your Computer with Windows Security
* WHAT: Use the antivirus program included with Windows to scan for malware or junk files that Adware might have downloaded.
* WHERE/HOW: Press the Start button, type "Windows Security" and open it > select "Virus & threat protection" > "Scan options" > select "Full scan" and click "Scan now".
* WHY: Sometimes malicious extensions can open a door for other malware to enter your system. A full scan helps check all files on your system and eliminate hidden threats.
* EXPECTED RESULT: The program will complete the scan and report the results. If suspicious files are detected, the system will recommend quarantining or removing them.
Step 5: Check Google Account Security
* WHAT: Review your Google account access and connected applications.
* WHERE/HOW: Go to myaccount.google.com and navigate to the "Security" menu. Use the "Security Checkup" tool to see if there are any unrecognized devices logged in, and check the section "Third-party apps with account access". If you find any unknown apps or services, revoke their access.
* WHY: Some extensions might trick you into granting them access to your Google account to steal data. Checking and revoking unnecessary permissions will help prevent future damage.
* EXPECTED RESULT: Your Google account will only be connected to devices and applications you recognize and trust.
Verify Results
After completing all steps, try the following tests:
1. Open Chrome and use it as usual. Try visiting websites where you previously encountered problems.
2. Open a new tab to see if the homepage has returned to normal.
3. Try using the address bar to search for information. Check if the search results are still from Google.
If everything is back to normal, with no pop-up ads and correct search results, you have successfully resolved the problem.
If the Problem Persists
If you have followed all steps and the problem still persists, it's possible that malware is embedded deeper than just in the browser. In this case:
* Try creating a new Chrome user profile: Sometimes, problems are caused by a corrupted current user profile. Creating a new profile and gradually migrating your data back may help.
* Contact IT Support: If it's a company computer, you should inform your IT department immediately. They have tools and expertise to deal with more complex malware.
* Consult an expert: For general users or SMEs, if you are unsure, seeking help from a trusted computer repair shop is the safest option.
The best prevention is to install extensions only from the Chrome Web Store and always read reviews and check the permissions an extension requests before installing. A little caution will help you browse the web safely and with peace of mind.