Book Source Adware

What is Book Source?

Book Source is a potentially unwanted program (PUP) claiming to allow users to download various ebooks. Initially, this functionality might seem legitimate and useful, however, these false claims are simply attempts to trick users to install. In fact, Book Source is classed as adware.

One of the main reasons for this negative association is stealth installation without users' consent. Furthermore, Book Source continually records various user/system information and delivers intrusive online advertisements.

Book Source records information such as search queries entered into search engines, URLs visited, pages viewed, Internet Protocol (IP) addresses (to determine geographic location), and so on. This data might seem insignificant, however, it can include private details that the developers of Book Source share with third parties.

There is a high probability that some of this personal data will be misused and lead to serious privacy issues or even identity theft. Furthermore, Book Source generates pop-up, banner, intrusive, and other similar advertisements.

These ads do not originate from visited websites - by concealing underlying content, they significantly diminish the web browsing experience. In addition, they can lead to infectious websites - clicking them is risky and might cause further adware/malware infections. For these main reasons, you should uninstall Book Source adware immediately.

There are many potentially unwanted programs such as Book Source. Some of the examples are Trezaa, Storm Alerts, TopFlix and CaptureItPlus.

All claim to enhance the web browsing experience, and yet, none provide any real value for regular users. Adware-type programs are designed only to generate revenue for the developers. Applications such as Book Source collect personally identifiable information, track users' web browsing activity, and often cause unwanted browser redirects.

How did Book Source install on my computer?

Book Source has an official download website, however, it is also distributed using a deceptive software marketing method called 'bundling', and thus many users install this application inadvertently.

Bundling is essentially stealth installation of potentially unwanted programs with regular software/apps - developers hide bundled software within the 'Custom/Advanced' settings of other applications' download/installation procedures. Thus, users who skip this section, often install potentially unwanted programs inadvertently.

How to avoid installation of potentially unwanted applications?

To prevent this situation, take two simple measure. Firstly, the download and installation processes should be performed using the 'Custom' or 'Advanced' settings. Secondly, do not install any third party applications - bundled software is mostly rogue and, thus, you should never accept any offers to download or install it.

Deceptive free software installer distributing Book Source adware:

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Quick menu:

• What is Book Source?
• STEP 1. Uninstall Book Source application using Control Panel.
• STEP 2. Remove Book Source adware from Internet Explorer.
• STEP 3. Remove Book Source ads from Google Chrome.
• STEP 4. Remove 'Ads by Book Source' from Mozilla Firefox.
• STEP 5. Remove Book Source ads from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Book Source adware removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "Book Source", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes Book Source ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove Book Source adware from Internet browsers:

At time of research, Book Source did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your Internet browsers.

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the book source ads, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the book source ads, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with book source ads removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the book source ads, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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