The 1-866-978-1337 pop-up indicates that your system has been infiltrated by adware. The message reports a non-existing security issue, usually about malware or adware detected on the compromised machine and suggests that the victim contacts a customer support team located in India, which will help solve the problem. The tech support specialists claim to work for Microsoft, but experts warn that this is a scam, and the supposed professionals on the other side of the line will only try to lure users into installing fake anti-virus solutions.
If you see the 1-866-978-1337 pop-up warning message, you better ignore it and scan your system for adware with a competent AV tool instead.
How Was 1-866-978-1337 Pop-Up Delivered to Your Computer?
Adware usually infiltrates the user’s system as a part of a freeware bundle. Most of the free programs users download online do not disclose the additional apps and plug-ins adequately. This is why it is important to follow the installation process closely, select the Advances options and opt-out of any software, which is suggested throughout the installation. Choosing your download sources carefully and keeping your anti-malware program up-to-date are crucial when it comes to the security of your system.
What Does 1-866-978-1337 Pop-Up Do?
Once active, the adware program that generates the 1-866-978-1337 pop-up, will display a security notification alerting you about adware or malware infiltration in your computer.
Here are a few examples of what the warning may look like:
Experts warn that the reported issues are not real and recommend that the victims do not call the provided tech support line number. The scammers will not only charge you for solving a non-existing problem, but the solution they offer may expose your system to various security risks.
Adware programs usually collect data about the user’s browsing routine, search terms, IP and email address, etc. Sensitive information may also be tracked and shared with third parties. Adware programs are also known to cause system instability and lead to poor browser performance.
How to Remove 1-866-978-1337 Pop-Up from Your PC?
A detailed manual on how to remove adware from your computer is provided below. Just follow the steps in the guide to delete the 1-866-978-1337 Pop-Up and similar issues from your computer permanently.
Spy Hunter FREE scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool. Find Out More About SpyHunter Anti-Malware Tool
- Guide 1: How to Remove 1-866-978-1337 Pop-Up from Windows.
- Guide 2: Get rid of 1-866-978-1337 Pop-Up from Mac OS X.
- Guide 3: Remove 1-866-978-1337 Pop-Up from Google Chrome.
- Guide 4: Erase 1-866-978-1337 Pop-Up from Mozilla Firefox.
- Guide 5: Uninstall 1-866-978-1337 Pop-Up from Microsoft Edge.
- Guide 6: Remove 1-866-978-1337 Pop-Up from Safari.
- Guide 7: Eliminate 1-866-978-1337 Pop-Up from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove 1-866-978-1337 Pop-Up from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove 1-866-978-1337 Pop-Up





Step 2: Uninstall 1-866-978-1337 Pop-Up and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:



Step 3: Clean any registries, created by 1-866-978-1337 Pop-Up on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by 1-866-978-1337 Pop-Up there. This can happen by following the steps underneath:



Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of 1-866-978-1337 Pop-Up from Mac OS X.
Step 1: Uninstall 1-866-978-1337 Pop-Up and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove 1-866-978-1337 Pop-Up via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove 1-866-978-1337 Pop-Up files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as 1-866-978-1337 Pop-Up, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove 1-866-978-1337 Pop-Up from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase 1-866-978-1337 Pop-Up from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall 1-866-978-1337 Pop-Up from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove 1-866-978-1337 Pop-Up from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the 1-866-978-1337 Pop-Up will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate 1-866-978-1337 Pop-Up from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.