If your Google Chrome Web browser suddenly has an unwanted toolbar, or its home page has changed without your permission, or your search results appear in a search engine you never chose, then it may be time to hit the browser-reset button.
Many legitimate pieces of software, especially freeware, that you download from the internet slap on third-party, browser-hijacking extensions when you install them. The practice is highly annoying, but it's unfortunately legal.
Fortunately, there's a fix for this in the form of a full browser reset, and Google Chrome makes it easy to perform.
Resetting Chrome will restore your home page and search engine to their default settings. It will also disable all browser extensions and clear out your cookie cache. But your bookmarks and saved passwords will remain, at least in theory.
You may want to save your bookmarks before performing a browser rest. Here are Google's directions on how to import and export bookmarks in Chrome.
Be aware that while your extensions will not be removed, you will have to turn each one back on manually by going to Menu --> More Tools --> Extensions. You will also have to log back into any websites that you normally stay logged into, such as Facebook or Gmail.
The steps below are identical for the Windows, Mac and Linux versions of Chrome.
1. Click the icon that looks like three vertical dots at the top right of the browser window.
2. Select 'Settings' in the drop-down menu.
3. Click Advanced in the left-hand navigation bar in the resulting Settings page.
4. Select 'Reset and clean up' at the bottom of the expanded menu.
5. Select 'Restore settings to their original defaults'.
6. Select 'Reset settings' in the confirmation pop-up window.
If you've done the browser reset but your search engine and home page are still set to something you didn't want, or they revert to unwanted settings after a short period of time, then you may have a potentially unwanted program (PUP) lurking in your system that is making the changes.
Like a browser-hijacking extension, PUPs are legal in most cases, which makes them no less irritating. But you'll want to track down each PUP and kill it.
Start by running one of the best antivirus programs to try to get rid of the PUP, but be aware that some AV programs will not remove PUPs because makers of legal but unwanted programs may sue when that happens.
Then install and run Malwarebytes Free for Windows or Mac to zap anything the antivirus program missed. Malwarebytes Free isn't antivirus software and won't stop you from being infected by malware, but it's a great way to clean out unwanted files.