Are you seeing “Important Security Message” pop-up warnings within Google Chrome, Mozilla Firefox, Internet Explorer or Edge? You need to know, it is a misleading advertising. These ads are created to scare you into thinking that your computer have a lot of heavy problems with security, drivers, malware, Internet connection, etc.
In reality, you have no problems with any drivers, Windows registry or a malware error. So call to Windows Service Center unnecessary anyway. A telephone, which is given in the message is a fake Windows tech support service. By calling it, you just lose your money and your time!
All of these “Important Security Message” misleading ads are caused by a malicious extension that has been installed by an adware and PUP that usually infects system through the use a free programs such as free pdf creator, free video player, free youtube downloader. So, when you have installed a free software that you need, this adware has been installed automatically too.
Most commonly, an adware that shows “Important Security Message” fake warnings is bundled within the installation packages from a free hosting and file sharing web sites. So, to protect yourself in the future, please read term of use and user agreement very carefully before installing any software or otherwise you can end up with another adware on your computer.
If you still are not sure that your computer is infected with an adware that shows “Important Security Message” warnings on your screen, then check your computer for the following other common signs of infection:
- Is your home page or default search engine different than what you originally set it as.
- Antivirus or antispyware software detects an adware or PUP infections.
- Your Internet connection is slow.
- Your browser displays fake alerts which recommend to contact microsoft technicians.
Last but not least, the adware can function as spyware – creates your Internet profile – what sites you`re browsing, when you`re running a browser, what you’re looking for on the Internet and so on. That is, it is stealing your personal information.
So, if your computer is infected with “Important Security Message” pop-up warnings, then most importantly, do not wait! Clean your computer as soon as possible. Use the step-by-step guide below.
How to remove “Important Security Message” pop-up warnings (Step-by-step instructions)
The following instructions is a full step-by-step guide, which will help you to remove “Important Security Message” warning pop-ups from your computer. Moreover, the steps below will help you to uninstall potentially unwanted software such as adware and toolbars that your PC may be infected. Please do the instructions step by step. If you need a help or have any questions, then ask for our assistance here or type a comment below.
1. Uninstall any suspicious and unknown programs by using Windows Control Panel
2. Remove “Important Security Message” adware and malicious extensions from Mozilla Firefox, Internet Explorer and Google Chrome with AdwCleaner
3. Remove “Important Security Message” pop-ups with JRT (Junkware Removal Tool)
4. Remove “Important Security Message” adware related files and registry keys with MalwareBytes Anti-malware
5. Disinfect the browser’s shortcuts to remove “Important Security Message” pop-ups
6. Block “Important Security Message” pop-ups and other similar advertising sites
7. Reset Chrome settings to remove “Important Security Message” pop-ups (Optional)
8. Reset Firefox settings to remove “Important Security Message” pop-ups (Optional)
9. Reset Internet Explorer settings to remove “Important Security Message” pop-ups (Optional)
1. Uninstall any suspicious and unknown programs by using Windows Control Panel
Press Windows key 
, then click Search 
. Type Control panel and press Enter. If you using Windows XP or Windows 7, then click Start and select Control Panel. It will open the Windows Control Panel as shown below.
Click Uninstall a program 
It will open a list of all programs. Scroll down through the all list, and uninstall any suspicious and unknown programs.
2. Remove “Important Security Message” adware and malicious extensions from Mozilla Firefox, Internet Explorer and Google Chrome with AdwCleaner
Download AdwCleaner from the link below.
Once finished, open a directory in which you saved it. You will see a icon like below.
Double click the AdwCleaner desktop icon. Once this tool is started, you will see a screen like below.
Press Start button to perform a system scan for “Important Security Message” adware and malicious extensions. Once AdwCleaner has finished, it will open a scan report as shown below.
Review the report and then click Cleaning button. It will display a prompt.
Click OK. When the cleaning process is finished, AdwCleaner may ask you to reboot your computer.
When your PC is started, you will see an AdwCleaner log.
3. Remove “Important Security Message” pop-ups with JRT (Junkware Removal Tool)
Download Junkware Removal Tool from the link below.
JRT (Junkware Removal Tool) download link.
Open a directory in which you saved the JRT. You will see an icon like below.
Run it. Junkware Removal Tool will try to update itself, if a new version is available. Once updating is done, you will see JRT DISCLAIMER.
Please read and press any key to continue. First, JRT creates a restore point and once complete, it will start a scan of a computer.
During the scan, Junkware Removal Tool will check Startups, Services, Processes, Files, Folders, Registry keys, Registry values, Mozilla Firefox, Internet Explorer (EDGE), Google Chrome extensions and remove “Important Security Message” related software that has been found.
When cleaning a computer is completed, JRT will display a log file.
4. Remove “Important Security Message” adware related files and registry keys with MalwareBytes Anti-malware
Download MalwareBytes Anti-malware (MBAM) from the link below.
MalwareBytes Anti-malware download link
Once downloaded, close all programs and windows on your computer. Open a directory in which you saved it. Double-click on the icon that named mbam-setup like below.
When the installation begins, you will see the Setup – Wizard that will help you install MalwareBytes Anti-malware on your computer.
Once installation is complete, you will see window similar to the one below.
Now click on the Scan Now button to start scanning your computer for “Important Security Message” adware related files and registry keys. This procedure can take some time, so please be patient.
When the scan is finished, make sure all entries have “checkmark” and click Remove Selected button. MalwareBytes Anti-malware will start to remove “Important Security Message” adware related files, folders, registry keys. Once disinfection is completed, you may be prompted to Restart.
5. Disinfect the browser’s shortcuts to remove “Important Security Message” redirect
When breaking into a computer, this infection that showing “Important Security Message” advertising can change the browser’s shortcuts. Due to this, every time you start the browser, it will open an advertising site.
To clear a browser shortcut, right-click to it and select Properties. On the Shortcut tab, locate the Target field. Click inside, you will see a vertical line – arrow pointer, move it (using -> arrow key on your keyboard) to the right as possible. You will see a text that has been added here. You need to remove it.
When the text is removed, press the OK button. You need to clean all shortcuts of all your browsers, as they may be infected too.
6. Block “Important Security Message” pop-ups and other similar advertising sites
To increase your security and protect your computer against new annoying ads and malicious web sites, in addition to your antivirus software, you need to use an application that blocks access to dangerous ads and web-pages. Moreover, the software can block the display of intrusive advertising, which also leads to faster loading of websites and reduce the consumption of web traffic.
Download AdGuard program using the following link.
After the download is complete, run the downloaded file. You will see the Setup Wizard program window as shown below.
Follow the prompts. After installation is complete, you will see a window as shown in the figure below.
You can click Skip to close the installation program and use the default settings, or press Get Started button to see an quick tutorial that will help you get to know AdGuard better.
In most cases, the default settings are enough and you do not need to change anything. Each time, when you start your computer, AdGuard will start automatically and block pop-up ads, fake “Important Security Message” warnings, as well as other malicious or misleading web pages. For an overview of all the features of the program, or to change its settings you can simply double-click on the icon AdGuard, which is located on your desktop.
7. Reset Chrome settings to remove “Important Security Message” pop-ups (Optional)
Open the Google Chrome menu by clicking on the button in the form of three horizontal stripes (
). It opens the drop-down menu. Click to Settings option.
Scroll down to the bottom of the page and click on the “Show advanced settings” link. Now scroll down until the Reset settings section is visible, as shown below and click on the Reset settings button.
Confirm your action, click on the Reset button.
8. Reset Firefox settings to remove “Important Security Message” pop-ups (Optional)
Open Mozilla Firefox menu by clicking on the button in the form of three horizontal stripes (). It opens the drop-down menu. Click on the Help button (
).
In the Help menu click on the “Troubleshooting Information”. In the upper-right corner of the “Troubleshooting Information” page click on Refresh Firefox button.
Confirm your action. Click on the Refresh Firefox.
9. Reset Internet Explorer settings to remove “Important Security Message” pop-ups (Optional)
Open the Internet Explorer tools menu by clicking on the button in the form of gear (
). It opens the drop-down menu. Click on the Internet Options.
In the Internet Options window click on the Advanced tab, then click the Reset button. The Internet Explorer will show the Reset Internet Explorer settings window. Select the Delete personal settings check box, then click on Reset button.
You will now need to restart your computer for the changes to take effect.
The End.
Your computer should now be free of “Important Security Message” misleading pop-up ads in Google Chrome, Mozilla Firefox, Internet Explorer and Microsoft Edge. If you need help with the instructions, then ask for help here.
