Why Does Main Security Error Popup Keep Coming up?

Recently, more and more Windows users and Mac users encountered annoying Main Security Error popups while trying to open websites. These popups attempt to convince the users to call a toll free hotline get assistance to solve virus or other problems detected on their computers. Our research team investigated it and found that Main Security Error popups are all phishing webpages made by deceptive tech support companies, which aim to swindle the victims into purchasing expensive service on virus removal or computer repair for nonexistent problems. Your web browsers such as Microsoft Edge, Chrome, Firefox, IE and Safari will be hijacked by Main Security Error popup if your computer has been invaded by PUP / Adware. These infections inject codes on your browser to redirect you to spam web pages and block your access to any other website. You will see misleading messages that report threats or system problems on your browser:

Main Security Error

The site ahead contains Malware.  Attackers currently on malware.testing.google.test might attempt to install dangerous programs on your computer, that steal or delete your information.

To fix, please contact customer care at 1-888-479-6340 immediately.

Second before Onunload System Alert.
Your computer is infected with an adware or malaware causing you to see this pop-up.
This may happen due to obsolete virus protections.
To fix, please call system support at 1-888-479-6340 immediately.
Please ensure you do not restart your computer to prevent data loss.
Possibility of data and identity theft if not fixed immediately.

Main Security Error.

Your computer might be infected with adware.

Attackers currently on malware.testing.google.test might attempt to install dangerous programs on your computer that steal or delete your information (for example, photos, passwords, messages, and credit cards).

To fix, please contact customer care at 1-877-648-5457 immediately

Why Should You Remove Main Security Error Malware Immediately?

Main Security Error popup

Main Security Error virus will mess up your system completely and put your identity and privacy  at risk if you do not remove it. Main Security Error will be activated every time you launch system, it will communicate with remote server to drop more threats to give your system more corruptions. It first makes of Trojan virus to weaken your system security, then it can open backdoor to help more infections invade your system. After that, spyware connected with Main Security Error can monitor your operations to steal your private information such as phone number, email, name, and credit card details. In case it gets such sensitive info, it sends to cyber criminal and will use them hack your accounts and get more money from you. To prevent such severe issues, you need to get rid of Main Security Error malware as early as possible. If you cannot complete the removal on your own, the removal steps below can assist you to solve it:

Solutions for Main Security Error Virus Removal (Remove Main Security Error Step-by-Step)

Note: The solutions on this page is for Windows Users, if you are a Mac user, please read this guide for Mac: https://easyviruskilling.com/how-to-remove-main-security-error-popup-on-safari-mac/

We provide three solutions on Main Security Error removal. You can choose the one that you can fully understand and handle on your own. But we still have some suggestions here:

Solution A is complicated, if you have enough PC techniques and rich experience on PC repair, you can try Solution A first; If you are not so great on your PC repair, do not use Solution A, or you may incautiously cause many errors and corruptions.

Solution B and Solutions C are easy methods that everyone can understand and execute. We recommend most of PC users to use these two solutions.

Solution A (Complicated Manual Removal method – only for Advanced and Experienced PC users with top skills)

Step 1. Change system folder settings to show all hidden files

Step 2. Seek and delete Main Security Error related files in hidden folders

Step 3. Seek and remove Main Security Error related registry files

Solution B (Best, easiest and most-used method)

Step 1. Uninstall Main Security Error related programs from your computer

Step 2. Remove Main Security Error plug-in, toolbar, add-on, extension from Microsoft Edge/ IE/Firefox/Chrome

Step 3. Scan your computer with SpyHunter to remove Main Security Error infection (Important Step)

Solution C (Effective method for removing stubborn malware )

Step 1. Run RegHunter to detect security bugs and fix corrupted/modified system files used by Main Security Error for re-infiltration (Important Step)

Step 2. Reset Microsoft Edge, Chrome, Firefox and IE to remove Main Security Error

Solution A – Main Security Error Manual Removal

Step 1. Change system folder settings to show all hidden files

On Windows 7 / Vista Computer

1. Right-click the Windows Logo button and choose Open Windows Explorer.
2. Click Organize and choose Folder and Search Options.
3. Click the View tab, select Show hidden files and folders and then clear the checkbox for Hide protected system operating files.
4. Click Yes on the warning and then click OK.

On Windows 8 Computer

1. On your keyboard press the Windows + E keys.
2. Click the View tab.
3. Check File name extensions and Hidden items

Step 2. Seek and delete Main Security Error related files in hidden folders listed below:

(The files on your computer may appear with different name, if cannot find out the files listed below, do not delete any file, just use Solution B and Solution C)

%Temp%\[adware name]

%AppData%\[adware name]

%LocalAppData%\[adware name]

%LocalAppData%\[adware name].exe

%CommonAppData%\[adware name]

%AllUsersProfile%random.exe

Step 3. Seek and remove Main Security Error related registry files listed below:

1. Open Registry Editor first:

On Windows 7 / Vista Computer

• Click Start button
• Select Run button
• Type: regedit
• Click OK button

On Windows 8 Computer

• Press Win [Windows key] + R on your keyboard. This can be done either while at Windows 8 Start menu/Metro screen or on Windows 8 desktop
• At the dialog box that pops open, type regedit.exe and hit OK
• Once you hit OK, Windows UAC will prompt you to confirm you want to open Register Editor — hit “Yes”

2. Find out and remove all harmful registry files related with Main Security Error virus listed below:

(The registry files on your computer may appear with different name, if cannot find out the files listed below, do not delete any file, just use Solution B and Solution C)

HKEY_LOCAL_MACHINESOFTWAREsupWPM
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesWpm
HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain “Default_Page_URL”
HKEY_LOCAL_Machine\Software\Classes\[adware name]
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\[adware name]

Notes: Manual removal needs advanced PC skills, if you cannot find the Main Security Error files accurately, you may ruin your system for removing important system files. Therefore, if you are not a user with Advanced tech skills, it’s best to use Solution B or Solution C to solve your problem easily and safely.

Solution B – Main Security Error Easy Removal Method

Step 1. Uninstall Main Security Error related programs from your computer

On Windows 10 Computer
1. Click Start Menu on Win 10 screen, and click All apps.

2. Now you can see all apps of your Win 10, find out the unwanted or suspicious program, then right-click it and select Uninstall.

On Windows 7 / Vista Computer

1. Click on the Start button to open your Start Menu, then Click Control Panel

2. In Control Panel, click on Uninstall a program under the Programs category

3. In the Programs and Features window, click Installed On to display the latest programs, scroll through the list to seek and uninstall Main Security Error and other unwanted and unfamiliar programs that look suspicious.

On Windows 8 Computer

1. Open the Settings Charm Bar by pressing Windows key + I key on your keyboard at the same time, then click on the Control Panel option

2. In category view, click on Uninstall a program under the Programs category

3. In the Programs and Features window, click Installed On to display the latest programs, scroll through the list to seek and uninstall Main Security Error and other unwanted and unfamiliar programs that look suspicious.

Step 2. Remove Main Security Error plug-in, toolbar, add-on, extension from Microsoft Edge/ Chrome/Firefox/IE

On Microsoft Edge

(Since Edge browser does not have extensions function now, what you need is just to reset homepage and search engine.)
1. Set your homepage page on Microsoft Edge to remove hijacker virus.

Select More (…) on the address bar, then Settings:

Under Open with, select A specific page or pages:

select Custom to enter the URL of page you want to set as homepage:

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2 . Set your default search engine to remove search redirect virus.

Select More (…) on the address bar, then Settings:

Click View advanced settings:

Click <Add new> under “Search in the address bar with”, then input the search engine you like:

Now select the search engine you like and click Add as default:

On Chrome

1. Click the Chrome menu on the browser toolbar.
2. Click Tools.
3. Select Extensions.
4. Click the trash can icon to delete Main Security Error extension.
5. Make sure to remove all extensions you do not know or need.
6. A confirmation dialog appears, click Remove.

On Firefox

1. Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
2. In the Add-ons Manager tab, select the Extensions panel.
3. Make sure to remove all extensions you do not know or need.
4. Click Disable or Remove button of Main Security Error.
5. Click Restart now if it pops up.

On Internet Explorer

1. Open the IE, click the Tools button , and then click Manage add-ons.
2. Click Toolbars and Extensions on left side of the window., and then select Main Security Error
3. Make sure to remove all BHO’s you do not know or need.
4. If the add-on can be deleted, you’ll see the Remove option. Click Remove and then click Close. Otherwise click Disable button.

Step 3. Scan your computer with SpyHunter to remove Main Security Error infection (Important Step)

Uninstallation of program in Control Panel and removal of extensions / add-on from web browsers can help us remove parts of adware and malware, but nowadays most of computer threats such as Main Security Error are created with advanced technology and cannot be easily removed with regular methods, therefore we need to use top-class malware remover like SpyHunter to get rid of threats automatically. To completely remove Main Security Error, you should download and run SpyHunter antimalware to diagnose your computer and get rid of all threats related with the virus.

1. Click the blue button below to open of SpyHunter.

(Notes – SpyHunter’s free version can only help you detect malware or virus. If you want to remove the malware threats detected by SpyHunter, you will need to buy license of SpyHunter. If you do not need it any more, please follow instructions on SpyHunter uninstall)

2. On the page, please click Download Free Scanner to download SpyHunter safely and quickly.

Tips: After SpyHunter is downloaded, your Chrome /Firefox /IE may display such fake security warning ” This type of file can harm your computer. Do you want to keep Download_Spyhunter-Installer.exe anyway?”, which is generated by virus to cheat you, please just ignore the fake warning and click “Keep” button.

3. Once downloaded, please double-click SpyHunter-Installer.exe to start the installation of SpyHunter.

4. When SpyHunter is installed, it will be run automatically, then click Scan Computer Now to detect Main Security Error related threats:

5. Once SpyHunter completes the scan, please click Fix Threats to get rid of Main Security Error.

Note: According to users investigation, this solution can help 95% users remove virus like Main Security Error completely. But if it does not function on your computer, you need to complete all steps listed in Solution C. Continue now:

Solution C – Main Security Error Quick Removal Guideline

Step 1. Run RegHunter to detect security bugs and fix corrupted/modified system files used by Main Security Error for re-infiltration (Important Step)

If you tried Solution B and still unable to remove Main Security Error, then we are sure that some of your system files must been modified or damaged by the virus. With a deep investigation and test on stubborn malware such as Main Security Error, our tech team confirm that the security bugs and system files modified /corrupted by virus is the reason why the threats survive and reborn.

Most of spyware and malware infect Windows machines by making use of existed security bugs, and they alter or corrupt crucial system files with codes, that means malware like Main Security Error is able to execute installation or activation codes of its program repeatedly, no matter how many times you delete it from Control Panel or extensions. Therefore, if you do not detect and fix all security bugs and restore the corrupted / modified system files to default, Main Security Error can keep coming back. In such situation, it’s best to run RegHunter to fix security bugs and corrupted files, hindering the reborn and re-infiltration of Main Security Error.

1. Click the green button below to open of RegHunter:

(Notes – RegHunter’s free version can only help you scan Registry errors or system errors. If you want to fix the errors detected by RegHunter, you will need to buy license of RegHunter. If you do not need it any more, please follow instructions on RegHunter uninstall)

2. On the page, please click Free PC Diagnosis to download RegHunter safely and quickly.

Tips: After RegHunter is downloaded, your Chrome /Firefox /IE may display such fake security warning “This type of file can harm your computer. Do you want to keep Download_Reghunter-Installer.exe anyway?”, which is generated by virus to cheat you, please just ignore the fake warning and click “Keep” button.

3. Once downloaded, then double-click RegHunter-Installer.exe to start the installation of RegHunter.

4. When RegHunter is installed, it will be run automatically, then click Scan for Registry Errors Now! to detect files corrupted by Main Security Error:

5. Once RegHunter completes the scan, please click Repair All Errors to solve security bugs related with Main Security Error.

Step 2. Reset Microsoft Edge, Chrome, Firefox and IE to remove Main Security Error

– Reset Microsoft Edge

(We have reset homepage and search engine at solution 2, so we just need to clear up the cookies on Microsoft Edge)
1. Select More (…) on the address bar, then Settings:

2. click “Choose what to clear”:

3. Check the first three options and then click Clear:

– Reset Chrome

1. Open Chrome, then click “Customize and control Google Chrome” button, and then click on Settings

2. Under the Chrome Settings page, scroll down to the bottom, then click on Show advanced settings button

3. After clicking on Show advanced settings button, scroll down to the bottom and click on Reset browser settings button

4. A message box will pop up to inform that your browser settings will be restored to their original defaults, click Reset button when it appears:

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– Reset Firefox

1. Open Firefox, then click on Firefox button, then Click on Help button, then Click on Troubleshooting Information

2. At the Troubleshooting Information page, click on Reset Firefox

3. A message box will pop up to let you confirm that you want to reset Firefox to its initial state, click Reset Firefox button when it appears:

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– Reset Internet Explorer

1. Open Internet Explorer, then click on Tools, then click on Internet Options

2. On the Internet Options window: click on Advanced tab, then click Reset button

3. A message box will pop up to let you confirm that you want to reset all Internet Explorer Settings, click Reset button when it appears:

4. When the resetting process is done, you’ll see this message box, click Close

5. You’ll need to restart your Internet Explorer to complete the resetting process.

Friendly Reminder

If you can finish all the steps exactly, you must have got rid of the nasty Main Security Error virus as other PC users. Now you should learn some basic knowledge so that you will get viruses easily in the future . Please keep in mind, PC viruses are mainly disseminated through free software, emails, and porn websites, be carefully if you have any operations related with these things. First, always use Advanced or Custom Install while installing free software; secondly, do not click links or open attachments on emails unless you are sure that it is safe; thirdly, do not visit porn sites if you cannot assure its