If you are having issues while trying to uninstall a program, you can use Revo Uninstaller Free to completely remove an unwanted program from your computer.

STEP 2: Use Malwarebytes to remove Watchonline.casa adware

Malwarebytes is one of the most popular and most used anti-malware software for Windows, and for good reasons. It is able to destroy many types of malware that other software tends to miss, without costing you absolutely nothing. When it comes to cleaning up an infected device, Malwarebytes has always been free and we recommend it as an essential tool in the fight against malware.

The first time you install Malwarebytes, you’re given a free 14-day trial of the premium edition, which includes preventative tools like real-time scanning and specific protection from ransomware. After two weeks, it automatically reverts to the basic free version that will detect and clean up malware infections only when you run a scan. It is important to note that Malwarebytes will run alongside antivirus software without conflicts.

  1. Download Malwarebytes.

    You can download Malwarebytes by clicking the link below.

    MALWAREBYTES DOWNLOAD LINK
    (The above link will open a new page from where you can download Malwarebytes)
  2. Double-click on the Malwarebytes setup file.

    When Malwarebytes has finished downloading, double-click on the mb3-setup-consumer-x.x.x.xxxx.exe file to install Malwarebytes on your PC. In most cases, downloaded files are saved to the Downloads folder.

    Double-click on mb3-setup to install Malwarebytes Help
    You may be presented with an User Account Control pop-up asking if you want to allow Malwarebytes to make changes to your device. If this happens, you should click “Yes” to continue with the installation.
    Windows asking for permission to run the Malwarebytes installer - Help Guide

  3. Follow the on-screen prompts to install Malwarebytes.

    When the Malwarebytes installation begins, you will see the Malwarebytes Setup Wizard which will guide you through the installation process. To install Malwarebytes on your PC, click on the “Agree and Install” button.
    Malwarebytes Setup Screen - Help Guide
    Malwarebytes is installed on your PC - Help Guide

  4. Click on “Scan Now”.

    Once installed, Malwarebytes will automatically start and update the antivirus database. To perform a system scan, click on the “Scan Now” button.
    Start a scan with Malwarebytes to remove Watchonline.casa adware

  5. Wait for the Malwarebytes scan to complete.

    Malwarebytes will now start scanning your computer for adware and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Malwarebytes scanning PC for Watchonline.casa malware

  6. Click on “Quarantine Selected”.

    When the scan has completed, you will be presented with a screen showing the malware infections that Malwarebytes has detected. To remove the malicious programs that Malwarebytes has found, click on the “Quarantine Selected” button.
    Click on the Quarantine Selected button to remove Watchonline.casa virus

  7. Reboot your computer.

    Malwarebytes will now remove all the malicious files and registry keys that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your computer.
    Malwarebytes requesting to restart computer to complete malware removal process - Help Guide
    When the malware removal process is complete, you can close Malwarebytes and continue with the rest of the instructions.


STEP 3: Use HitmanPro to scan for malware and unwanted programs

HitmanPro is a second opinion scanner that takes a unique cloud-based approach to malware scanning. HitmanPro scans the behavior of active files and also files in locations where malware normally resides for suspicious activity. If it finds a suspicious file that’s not already known, HitmanPro sends it to their clouds to be scanned by two of the best antivirus engines today, which are Bitdefender and Kaspersky.

Although HitmanPro is shareware and costs $24.95 for 1 year on 1 PC, there is actually no limit in scanning. The limitation only kicks in when there is a need to remove or quarantine detected malware by HitmanPro on your system and by then, you can activate the one time 30-days trial to enable the cleanup.

  1. Download HitmanPro.

    You can download HitmanPro by clicking the link below.

    HITMANPRO DOWNLOAD LINK
    (The above link will open a new web page from where you can download HitmanPro)
  2. Install HitmanPro.

    When HitmanPro has finished downloading, double-click on “hitmanpro.exe” (for 32-bit versions of Windows) or “hitmanpro_x64.exe” (for 64-bit versions of Windows) to install this program on your PC. In most cases, downloaded files are saved to the Downloads folder.
    Double-click on the HitmanPro setup file - Help Guide
    You may be presented with an User Account Control pop-up asking if you want to allow HitmanPro to make changes to your device. If this happens, you should click “Yes” to continue with the installation.
    Windows asking for permissions to run the HitmanPro setup file - Help Guide

  3. Follow the on-screen prompts.

    When HitmanPro starts you will be presented with the start screen as shown below. Click on the “Next” button to perform a system scan.

    Click Next to install HitmanPro

    HitmanPro final installer screen

  4. Wait for the HitmanPro scan to complete.

    HitmanPro will now begin to scan your computer for malicious programs. This process will take a few minutes.
    HitmanPro while scanning for malware - Help Guide

  5. Click on “Next”.

    When HitmanPro has finished the scan, it will display a list of all the malware that the program has found. Click on the “Next” button to remove the malicious programs.
    HitmanPro scan summary. Click Next to remove Watchonline.casa pop-up ads

  6. Click on “Activate free license”.

    Click on the “Activate free license” button to begin the free 30 days trial and remove all the malicious files from your PC.
    Activate the free HitmanPro license keyEnter your email to complete the HitmanPro activation - Help Guide
    When the process is complete, you can close HitmanPro and continue with the rest of the instructions.


STEP 4: Double-check for malicious programs with AdwCleaner

AdwCleaner is a free popular on-demand scanner which can detect and remove malware that even the most well-known anti-virus and anti-malware applications fail to find.
While the Malwarebytes and HitmanPro scans are more than enough, we’re recommending AdwCleaner to users who still have malware related issues or just want to make sure their PC is 100% clean.

  1. Download AdwCleaner.

    You can download AdwCleaner by clicking the link below.

    ADWCLEANER DOWNLOAD LINK
    (The above link will open a new web page from where you can download AdwCleaner)
  2. Double-click on the setup file.

    Double-click on the file named “adwcleaner_7.x.x.exe” to start AdwCleaner. In most cases, downloaded files are saved to the Downloads folder.
    AdwCleaner Setup File
    You may be presented with a User Account Control dialog asking you if you want to run this file. If this happens, you should click “Yes” to continue with the installation.
    AdwCleaner and Windows User Account Control Pop-up

  3. Click on “Scan Now”.

    When AdwCleaner will start, click on the “Scan Now” button to perform a system scan.
    AdwCleaner Scan Now button

  4. Wait for the AdwCleaner scan to complete.

    AdwCleaner will now scan your PC for malicious files. This process can take a few minutes.
    AdwCleaner Scanning For Watchonline.casa Malware

  5. Click on “Clean & Repair”.

    When AdwCleaner has finished it will display a list of all the malware that the program found. Click on the “Clean & Repair” button to remove the malicious files from your computer.
    Click Clean & Restart to remove Watchonline.casa pop-up ads

  6. Click on “Clean & Restart Now”

    When the malware removal process is complete, AdwCleaner may need to restart your device. Click on the “Clean & Restart Now” button to finish the removal process.
    Click Clean & Restart Now to remove Watchonline.casa adware


(OPTIONAL) STEP 5: Reset the browser settings to remove Watchonline.casa pop-up ads

If your browser is still being redirected to the Watchonline.casa pop-up, we will need to reset the web browser settings to their original defaults. This step should be performed only if your issues have not been solved by the previous steps.

Google Chrome


To remove Watchonline.casa pop-up ads from Google Chrome, we will need to reset your browser to its default settings. Resetting your browser settings will reset the unwanted changes caused by installing other programs. However, your saved bookmarks and passwords will not be cleared or changed.

  1. Open Chrome’s “Settings” menu.

    Click on Chrome’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Settings“.
    Google Chrome Settings Menu

  2. At the bottom, click “Advanced”.

    Chrome’s “Settings” should now be displayed in a new tab or window, depending on your configuration. Next, scroll to the bottom of the page and click on the “Advanced” link (as seen in the below example).
    Click on the Advanced button to remove Watchonline.casa

  3. Under the section “Reset,” click “Reset”.

    Chrome’s advanced settings should now be displayed. Scroll down until the “Reset and clean up” section is visible, as shown in the example below. Next, click on the “Reset settings to their original defaults” button.
    Google Chrome Reset button

  4. Confirm by clicking “Reset”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, click on the “Reset Settings” button.
    Click on Reset to restore Google Chrome to its default settings

Mozilla Firefox


To remove Watchonline.casa pop-up ads from Firefox, we will need to reset your browser to its default settings. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history and open tabs.

  1. Go to the “Help” menu.

    Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
    Click on the Firefox Menu button then select Help - Firefox Guide

  2. Click “Troubleshooting Information”.

    From the Help menu, click on “Troubleshooting Information“.

    If you’re unable to access the “Help” menu, type about:support in your address bar to bring up the Troubleshooting information page.

    Troubleshooting Information option in Firefox

  3. Click on “Refresh Firefox”

    Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
    Refresh Firefox button

  4. Confirm.

    To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
    Confirm Reset Firefox to remove Watchonline.casa pop-ups

  5. Click on “Finish”.

    Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on the “Finish“.

Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.

Internet Explorer


To remove Watchonline.casa pop-up ads from Internet Explorer, we will need to reset your browser to its default settings. You can reset Internet Explorer settings to return them to the state they were in when Internet Explorer was first installed on your PC.

  1. Go to “Internet Options”.

    Open Internet Explorer, click on the gear icon in the upper right part of your browser, then select “Internet Options“.
    Click on the Gear Icon then select Internet Options - Help Guide

  2. Select the “Advanced” tab, then click “Reset”

    In the “Internet Options” dialog box, select the “Advanced” tab, then click on the “Reset” button.
    In the Advanced tab click on the Reset button - Help Guide

  3. Click on “Reset”.

    In the “Reset Internet Explorer settings” section, select the “Delete personal settings” checkbox, then click on the “Reset” button.
    Click on the Reset button to remove Watchonline.casa pop-ups

  4. Click on “Close”.

    When Internet Explorer has completed its task, click on the “Close” button in the confirmation dialogue box.
    You will now  need to close your browser, and then you can open Internet Explorer again.
    Click on the Close button - Help Guide

Microsoft Edge


To remove Watchonline.casa pop-up ads from Microsoft Edge, we will need to reset your browser to its default settings. Starting with Windows 10 Fall Creators Update (version 1709), users can repair or reset the Microsoft Edge settings.

  1. Go to “Apps and Features”.

    Right-click on the Start Windows Start button button in the lower-left corner and select “Apps and Features“. This will take you directly to your list of installed programs.
    Go to Apps and Features in Windows 10

  2. Find Microsoft Edge, then select “Advanced Options”.

    The “App and Features” screen will be displayed with a list of all the programs installed on your PC. Scroll through the list until you find “Microsoft Edge”, click it, and then click on the “Advanced options” link.
    Microsoft Edge Advanced Options

  3. Click on “Reset”.

    The “Advanced Options” screen will now be displayed. Scroll down until the “Reset” section is visible, as shown in the example below. Next, click on the “Reset” button.
    Click on Reset to restore Microsoft Edge settings to remove Watchonline.casa pop-ups


Your computer should now be clean, and you should not see the Watchonline.casa pop-up ads in your browser. If you are still experiencing problems while trying to remove Watchonline.casa adware from your PC, please do one of the following:

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About author

Stelian Pilici is the creator and owner of MalwareTips.com. He created this community in 2010 to help people solve their computer problems.
Stelian's area of expertise includes malware removal and computer forensics. He's active in the various online anti-malware communities where he does research for new malware threats as they are released.

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