What is Error #278D5 pop-up?
If you are redirected to a suspicious domain, showing an error 278d5 and a notice to call Microsoft Support you are redirected to a fake pop-up. The error #278d5 pop-up in the Chrome, Firefox, Internet Explorer or Edge web browser is set up and design by cybercriminals to scam users into calling fake Microsoft support.
error 278d5 pop-up is nothing more than a trick to scare users into thinking their computer is infected with a virus and spyware and therefore Microsoft Support should be called. In reality, if you would call the telephone number, you would call a very expensive and useless support scammer which tries to trick you into buying a support contract you do not need. However, the computer is most likely infected, but not with a virus or spyware but with adware.
As the pop-up ad with the message “Error #278D5” is random, it’s difficult to say which domain might occur on your computer, as mentioned above this Error #278D5 pop-up is random, the Microsoft support scammers use different domains.
The domains the scammers use often don’t exist very long, these typical scam domains are usually taken offline within 24 hours or less. However, the telephone number remains and a new domain is registered to deceive users, similar to we couldn’t active windows popup, windows cleaner update required pop-up, your computer is at high risk popup, Microsoft warning alert popup, Call for Support popup, and this computer is blocked popup.
The content of the pop-up.
Critical Alert from Microsoft. Your computer has alerted us that it is infected with a virus and spyware. This virus is sending your confidential information, saved passwords and personal emails to hackers remotely. Please call us immediatly on .. error number #278D5.
Do not call the telephone number shown in the “Error #278D5” pop-up, it’s expensive, won’t help you and might be used for identify theft (searching for passwords, or installing Remote Administration Tooling).
Read further about how to close the “Error #278D5” pop-up and how to remove the associated adware from your device that is causing the pop-up.
You can use the menu to easily navigate through the removal steps.
How to remove Error #278D5 pop-up?
- What is Error 278D5 pop-up
- Close the Error #278D5 pop-up
- Uninstall adware
- Remove Error #278D5 redirect Internet Explorer
- Remove Error #278D5 pop-up Google Chrome
- Remove Error #278D5 pop-up Firefox
- Remove Error #278D5 scam Microsoft Edge
- Go to Error #278D5 pop-up (adware) removal tool
Hi Mac user! did you know you can clean your Mac with CleanMyMac?. Get rid of Mac malware.
The instructions below apply to Microsoft Windows devices only. Mac OS users should use CleanMyMac or Malwarebytes for Mac to remove malware. Read more in this Mac adware removal instruction
Remove malware from your Android device with Malwarebytes for Android.
Close the “Error #278D5” pop-up
If the “Error #278D5” pop-up stays on top or constantly opens in fullscreen, the pop-up seems impossible to close. Execute this optional step to close the intrusive pop-up. After executing this step, please continue with Malwarebytes to start the actual removal of the adware that is causing the “Error #278D5” pop-up in the browser.
Start the Windows Task Manager by simultaneously pressing CTRL+ALT+DEL for Windows 7 or CTRL+SHIFT+ESC for Windows 8 and Windows 10.
It is also possible to hit the taskbar with a right click and select the Task Manager from the taskbar menu.
Select the browser you are using from the list and right-click on it, selecting End Task.
It is also possible to use the End Task button in the right lower corner of the task manager.
The internet browser should be closed now, continue to the next step to start the actual removing process of the malware.
Uninstall adware to get rid of Error #278D5 popup
Windows 7 users: Click the Start button in the left bottom corner, select Control Panel, select “Programs, and Features”.
Windows 8 user: right-click the Windows logo in the lower left corner, select Control Panel, select “Programs, and Features”.
Windows 10 user: right-click the Windows logo in the bottom left corner, open Run, and type appwiz.cpl
Check the software application list for recently installed adware applications and click “Uninstall“. In the image, you see recently known adware applications.
Click the column “Installed On” to sort installed applications by date, this makes it easier to detect recently installed adware applications.
If you don’t know what to look for, go to the Error #278D5 pop-up (adware) removal tool.
No worries, the removal tool is free to detect and remove adware for 14 days.
Manually remove Error #278D5 pop-up from Internet Explorer, Chrome, Firefox or Microsoft Edge
Remove Error #278D5 pop-up manually from the Internet Explorer, Google Chrome, Firefox or Edge web browser.
Remove Error #278D5 from Internet Explorer
In this first step for Internet Explorer, you have to verify if internet explorer is infected with a malicious add-on. Add-ons could be responsible for the Error #278D5 pop-up ads in the Internet Explorer web browser.
choose the wrench button, and from the menu click Manage add-ons.
Check the add-on list for any suspicious add-on in Internet Explorer, click disable or remove to delete the add-on.
Continue to the next step to remove Error #278D5 pop-up from Internet Explorer.
Reset your default Homepage and Search engine for Internet Explorer
Internet Explorer has the possibility to reset to default, an Internet Explorer reset will affect your saved bookmarks and passwords. Internet Explorer reset is the easiest way to get rid of the Error #278D5 redirect.
pick the wrench button and from the menu click Internet Options.
Choose the Advanced tab, click the Reset button.
Check Delete personal settings and click the Reset button.
Restart Internet Explorer to complete the reset.
Good, Internet Explorer is reset to the default configuration, it is important to know there are adware (Error #278D5 pop-up) remnants on your computer. I recommend to scan and remove the virus files from your computer. Make sure the Error #278D5 redirect doesn’t occur again and all remnants are removed from your PC.
Remove Error #278D5 from Google Chrome
Google Chrome users on Mac OS, follow this Adware removal guide for Mac OS
In this first step for Google Chrome, you need to identify and remove the browser extension responsible for the Error #278D5 pop-up ads. Some browser extensions are ad-supported, e.g. adware and might show intrusive ads such as Error #278D5.
If you didn’t install any browser extension at all, remove all browser extensions from Chrome.
Click the menu button, from the Chrome menu click More tools and then Extensions.
Identify browser extension(s) from the list and click the Remove button to remove the extension.
If you are unsure if the extension is malicious, click the slider and disable the extension first. Continue to the next step.
Reset the Google Chrome profile sync
Google Chrome synchronizes the browsers user-profile with the Google Cloud services. If the Google Chrome browser is infected with adware, this adware, usually browser extensions, and pop-up ads to Error #278D5 ads are synced with Google’s servers.
It is important to clean this synchronized cache. If the user doesn’t clear the synchronized settings, the Error #278D5 pop-up and malicious Chrome settings keep coming back on any devices the Chrome user profile is synchronized with.
Open the Google Dashboard (opens in a new browser window). Click the Reset sync button to clear all of your synced data on Google’s server, confirm with OK.
Continue to the next step.
Reset the Google Chrome homepage and search engine settings
Chrome has the option to reset to default settings, a Chrome browser reset will not affect your saved bookmarks and passwords. Google Chrome reset is the easiest way to get rid of ad-supported browser extensions that display the Error #278D5 pop-up ad.
Click the menu button, from the drop-down menu click Settings.
Scroll down to Advanced and again scroll down to Reset settings.
Click the Reset button to reset Google Chrome.
Confirm the reset of the Chrome web browser by clicking the Reset button.
Restart Google Chrome for the changes to take effect.
Google Chrome is reset to default settings, it is important to know there are remnants of Error #278D5 redirect on your computer. I recommend to scan and remove malware files from your computer to make sure the adware does not reinstall and the Error #278D5 redirect doesn’t occur again.
Remove Error #278D5 from Firefox
In this first step for Firefox, you need to identify and remove any Firefox add-on that is unknown to you.
If you didn’t install any add-on at all, remove all add-ons from Firefox. Add-ons in Firefox could be ad-supported which basically means an add-on shows Error #278D5 pop-up ads in Firefox.
Click the Firefox menu button, from the drop-down menu click Add-ons.
Click extensions from the left menu. Identify any unknown Firefox browser extension.
Click the Remove button to delete the extension and get rid of Error #278D5 ads.
Reset the Firefox homepage and search engine settings
Firefox has the option to reset to default settings, this will reset Firefox completely. Reset Firefox is the easiest way to get rid of ad-supported add-ons from Firefox.
Click the menu button, from the menu, select Help ? (the question mark icon, at the end of the menu).
Click on Troubleshooting information from the Help menu.
select the Refresh Firefox button, confirm the reset and restart Firefox.
The Firefox browser is reset to default settings, it is important to know there are remnants of malware on your computer. I recommend to scan and remove malware files from your computer to make sure the malware does not reinstall and the Error #278D5 redirect is entirely removed from the Firefox web browser.
Remove Error #278D5 from Microsoft Edge
If you encounter Error #278D5 pop-up redirects in Microsoft Edge, follow these instructions.
Right-click the start button in Windows 10, from the start menu top click Apps and Features.
Scroll down through the right Apps and Features list till you see Microsoft Edge, click Advanced options.
Click on the Reset button to reset Microsoft Edge to default settings. Microsoft Edge reset will clear the browsing history, cookies, and settings. Not the Microsoft Edge favorites web pages.
The Microsoft Edge web-browser is reset to default settings, it is important to know there are remnants of the Error #278D5 redirect on your PC. I recommend to scan and remove malware files from your computer.
Remove Error #278D5 popup with Malwarebytes
Get rid of Error #278D5 with Malwarebytes. Malwarebytes is free to use, detect and remove the Error #278D5 redirect from the web browser. Error #278D5 is a intrusive pop-up which is a type of malware, Malwarebytes will remove Error #278D5 pop-up redirect from the web browser.
Run the Malwarebytes program installation file. Click here for Malwarebytes installation instructions.
Click Scan Now to start examining for the adware responsible for the Error #278D5 redirect in the web browser.
Malwarebytes will start searching for malware, please wait for Malwarebytes to finish the malware scan.
Malwarebytes usually takes between 2 to 5 minutes to complete.
Once the malware scan is performed, Malwarebytes will present the results of the Error #278D5 pop-up adware scan.
Remove the malware found by Malwarebytes using the Quarantine Selected button.
Wait for Malwarebytes to move all malware to quarantine.
Malwarebytes needs to make a system reboot to finish the Error #278D5 redirect removal process.
Save and close any working documents or open web pages and click Yes to reboot your PC.
After the system reboot, your web browser is free from the Error #278D5 pop-up redirect. Stay protected with Malwarebytes against future browser hijacker and other types of malware. Malwarebytes stops adware, abusive pop-ups, potentially unwanted programs, malicious web pages, suspicious downloads, viruses, spyware and ransomware from infecting your web browser.
Get rid of Error #278D5 with Zemana
Zemana Anti-Malware is an second opinion anti-malware scanner which uses Cloud technology with Error #278D5 pop-up detection. Removes annoying browser extensions, ad-supported add-on’s, unwanted applications and new tab/toolbars. It’s an efficient adware cleaner.
Download Zemana Anti Malware
Open the Zemana anti-malware setup file.
Install Zemana anti-malware using the default settings, after successful installation Zemana anti-malware will update itself to the latest version.
Select the Scan button to perform a malware scan to detect the malware responsible for the Error #278D5 redirect
Please wait for the scan to finish, the scan usually takes a few minutes.
Click the Next button to remove the malware found by Zemana on your computer.
Wait a couple of seconds for Zemana to clean up your device from malware.
Your PC is successfully cleaned by Zemana. Zemana is an excellent protection for people searching for a lightweight malware detection and removal tool. Zemana is its best in addition to a more comprehensive antivirus or anti-malware security application such as Malwarebytes.
Remove Error #278D5 redirect with AdwCleaner
Adwcleaner is a free removal tool to detected and remove Error #278D5 from your web browser and computer. Adwcleaner is a portable adware removal tool, designed for lightweight adware removal. You can use Adwcleaner anywhere to remove adware from the web browser and PC. Download Adwcleaner to your PC, an external hard drive or USB stick and you are ready to start removing adware. Download AdwCleaner Free
- Right-click the AdwCleaner executable you just downloaded and select “Run as Administrator” this is important.
- Select the Scan Now button.
- Wait for the adware & malware scan to finish.
- Click the Clean & Repair button to remove the adware and malware from your PC.
- Wait for AdwCleaner to remove the adware and malware from your PC.
- Click the Clean & Restart Now button to finish the malware removal process.
- After the reboot, AdwCleaner shows a summary of the detected and removed malware files.
[wps_icon icon=”info-circle” color=”#1e73be” size=”16″ padding=”5″ radius=”0″]Read more about Microsoft Tech Support scams and how these scammers work.
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