Error # S47452D" virus: what it is and how to remove it

Error#S47452D virus is the name of a tech support scam targeted at both, Windows and Mac OS users. It comes in the form a lock screen web page.

Facts checked October 7, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.

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Error # S47452D" virus: error 4745
Error # S47452D" virus as our 2017 report showed it.

Error # S47452D" virus: summary

Detection namesNo Microsoft detection name is known
DistributionNot recorded in the old report
DamageNot recorded in the old report
NameError # S47452D" virus
TypeAdware extension
SymptomsAn unknown program in Installed apps
Removal

Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged.

Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free.
Show 4 more facts
Evidence6 write-ups by security sites; details still limited
ProgramError # S47452D" virus
First seen22 March 2017
Facts checked7 October 2026

Is Error # S47452D" virus dangerous?

From our report of Mar 2017 · not reviewed since

Review of "Error # S47452D" virus

Error#S47452D virus is the name of a tech support scam targeted at both, Windows and Mac OS users.

It comes in the form a lock screen web page. Usually, users get redirected to this website while visiting a corrupted website filled with adware elements . Alternatively, these alerts might bother when the mentioned PUP settles on a computer. As common for this sort of scam, the alerts scare users with their computers being at risk.

More cautious users might get frightened by this cheap scam. Let us assure you that it is not ransomware or another complex threat . On the other hand, some hackers might drop an unpleasant "gift." Nonetheless, do not waste time and proceed to "Error # S47452D" removal.

This tech support scam is only one sample of numerous analogous scams. Since it does not require much technical proficiency, it is quite popular among felons if various ilk. Fortunately, this scam should not cause removal problems.

The very content of the message alarms users to take an immediate action and call 1-800-953-457. The message, written in abrupt English, claims that the computers have been infected with pornographic spyware and riskware.

It asks victims to call the indicated number within 5 minutes to prevent further damage and personal data from getting stolen. The content of such message is common for the type of Microsoft Warning alert scams.

You might wonder what happens if you call the scammer. He will lead you through a series of system procedures and load you with technical information which is most likely to be false either . Therefore, what you should do is remove "Error#S47452D."

Error # S47452D" virus: error 4745
Error # S47452D" virus in our 2017 report.

From our report of Mar 2017 · not reviewed since

More from our earlier report on Error # S47452D" virus

  • Microsoft Warning Alert Malicious Pornographic Spyware/Riskware Detected Error # S47452D Please call us immediately at: 1-800-953-457.

How Error # S47452D" virus got into your browser

From our report of Mar 2017 · not reviewed since

You might run into Error # S47452D scam when you browse the web for gaming or gambling sites.

Illegal or ad-supported movie streaming websites are also a common shelter for this type of malware. More exquisite threats work on the basis of exploit kits. In order to lower the risk of encountering such threats in the future, arm up with knowledge ad security applications.

For that purpose, or comes in handy. Even if you encounter Error#S47452D hijack or similar attack, simply tick the box "Prevent this page from creating additional dialogues." Likewise, you will be able to exit the scam window.

How to remove Error # S47452D" virus

How to remove the Error # S47452D" virus extension

Do the browser steps in every browser and profile on the PC, then check Windows for the program that installed the extension.

  1. Step 1: Remove extensions you did not add

    Error # S47452D" virus often works through an extension, so go through the extension list of each browser:

    • chrome://extensions
    • edge://extensions
    • Extensions and themes in Firefox

    Switch suspicious extensions off one at a time and reload the page where the problem shows, then remove the one that stops it, and any other you did not add.

    Remember the other browsers and profiles on the PC. If Remove is missing or greyed out, a policy forces the extension, which the policy step deals with. Windows 11 and Windows 10 show the same pages.

    Chrome menu with Extensions and Manage extensions highlighted
    Chrome on Windows 11: More > Extensions > Manage extensions.

    Full procedure with screenshots: Remove a browser extension

  2. Step 2: Uninstall Error # S47452D" virus

    Open Settings > Apps > Installed apps in Windows 11, or Settings > Apps > Apps & features in Windows 10.

    Sort the list by install date and find Error # S47452D" virus, then choose Uninstall from the three-dot menu next to it (in Windows 10, click the entry and then Uninstall).

    Remove anything else installed on the same day that you do not recognise, because such programs usually arrive together in one installer. If the uninstaller opens a browser page with an offer or a survey, close it: the program is removed either way.

    Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix

  3. Step 3: Reset the browser

    Finish the browser part with a reset, which puts the search engine, start page, new tab page and site permissions back to their defaults and switches extensions off. Chrome: Settings > Reset settings > Restore settings to their original defaults.

    Edge: Settings > Reset settings. Firefox: Help > More troubleshooting information > Refresh Firefox, which also removes its extensions. Your bookmarks and saved passwords are kept, and the menus are the same on Windows 11 and Windows 10.

    Chrome Settings page with the Reset settings section open
    Chrome on Windows 11: Settings > Reset settings.

    Full procedure with screenshots: Reset a browser and fix a hijacked search engine

  4. Step 4: Scan the PC, then run the offline scan

    Open Windows Security > Virus & threat protection > Scan options, run a Full scan and remove everything it finds. Then select Microsoft Defender Antivirus (offline scan) and click Scan now: the PC restarts and scans before Windows loads, which finds files that hide while Windows runs.

    Save your work first, because the offline scan takes about 15 minutes. Both scans are built into Windows 11 and Windows 10, and a second scanner from another vendor is a useful extra opinion.

    Windows Security Scan options with Microsoft Defender Antivirus offline scan selected
    Windows 11: Windows Security > Virus & threat protection > Scan options.

    Full procedure with screenshots: Run a Microsoft Defender Offline scan

Instructions for each browser and system

The detailed steps for every browser and system this guide covers. Open the one you use.

Uninstall from Windows

Uninstall from Windows 10/8:

  1. Type Control Panel into the Windows search box and open the result.
  2. Under Programs, select Uninstall a program.Uninstall from Windows 10/8

Uninstall from Windows 7/XP:

  1. Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
  2. In Control Panel, select Programs > Uninstall a program.Uninstall from Windows 7/XP

Remove the unwanted program:

  1. In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
  2. If User Account Control appears, click Yes to confirm, then complete the removal.Uninstall the unwanted program from Windows
Remove from Google Chrome

Delete malicious extensions from Google Chrome:

  1. Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
  2. In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.Remove extensions from Chrome

Clear cache and web data from Chrome:

  1. Click on Menu and pick Settings.
  2. Under Privacy and security, select Clear browsing data.
  3. Select Browsing history, Cookies and other site data, as well as Cached images and files.
  4. Click Clear data.Clear cache and web data from Chrome

Change your homepage:

  1. Click menu and choose Settings.
  2. Look for a suspicious site in the On startup section.
  3. Click on Open a specific or set of pages and click on three dots to find the Remove option.

Reset Google Chrome:

If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:

  1. Click on Menu and select Settings.
  2. In the Settings, scroll down and click Advanced.
  3. Scroll down and locate Reset and clean up section.
  4. Now click Restore settings to their original defaults.
  5. Confirm with Reset settings.Reset Chrome 2
Remove from Microsoft Edge

Delete unwanted extensions from MS Edge:

  1. Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
  2. From the list, pick the extension and click on the Gear icon.
  3. Click Remove.Remove extensions from Edge

Clear cookies and other browser data:

  1. Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
  2. Under Clear browsing data, pick Choose what to clear.
  3. Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.Clear Edge browsing data

Restore new tab and homepage settings:

  1. Click the menu icon and choose Settings.
  2. Then find On startup section.
  3. Click Remove next to any suspicious startup page.

Reset MS Edge if the above steps did not work:

  1. Press on Ctrl + Shift + Esc to open Task Manager.
  2. Click on More details arrow at the bottom of the window.
  3. Select Details tab.
  4. Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.Reset MS Edge
Instructions for Chromium-based Edge

Delete extensions from MS Edge (Chromium):

  1. Open Edge and click select Settings > Extensions.
  2. Delete unwanted extensions by clicking Remove.Remove extensions from Chromium Edge

Clear cache and site data:

  1. Click on Menu and go to Settings.
  2. Select Privacy, search and services.
  3. Under Clear browsing data, pick Choose what to clear.
  4. Under Time range, pick All time.
  5. Select Clear now.Clear browser data from Chroum Edge

Reset Chromium-based MS Edge:

  1. Click on Menu and select Settings.
  2. On the left side, pick Reset settings.
  3. Select Restore settings to their default values.
  4. Confirm with Reset.
  5. This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.Reset Chromium Edge
Remove from Mozilla Firefox (FF)

Remove dangerous extensions:

  1. Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
  2. Select Add-ons.
  3. In here, select the unwanted extension and click Remove.Remove extensions from Firefox

Reset the homepage:

  1. Click three horizontal lines at the top right corner to open the menu.
  2. Choose Settings.
  3. Under Home, set your preferred homepage and new tab settings.

Clear cookies and site data:

  1. Click Menu and pick Settings.
  2. Go to Privacy & Security section.
  3. Scroll down to locate Cookies and Site Data.
  4. Click on Clear Data...
  5. Select Cookies and Site Data and Temporary cached files and pages, then click Clear.Clear cookies and site data from Firefox

Reset Mozilla Firefox

If clearing the browser as explained above did not help, reset Mozilla Firefox:

  1. Open Mozilla Firefox browser and click the Menu.
  2. Go to Help and then choose Troubleshooting Information.Reset Firefox 1
  3. Under Give Firefox a tune up section, click on Refresh Firefox...
  4. Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.Reset Firefox 2
Delete from Safari

Remove dangerous extensions:

  1. Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
  2. Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.Remove extensions from Safari

Clear history and website data:

  1. Click Safari in the menu and pick Clear History.
  2. Set Clear to all history and confirm with Clear History.Clear history from Safari

Reset Safari:

  1. Click Safari in the menu and select Preferences > Advanced.
  2. Enable Show Develop menu in menu bar.
  3. From the menu bar, click Develop and select Empty Caches.Reset Safari
Delete from macOS

Remove the unwanted application:

  1. From the menu bar, select Go > Applications.
  2. In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).Uninstall from Mac

Delete leftover files and folders:

  1. Select Go > Go to Folder.
  2. Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
  3. Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.Delete leftover files from Mac
  4. Finally, empty the Trash to permanently remove the leftovers.
Reset Internet Explorer

When you close the tab of this scam, you should still perform full browser reset to clean all possibly left malicious scripts of Error#S47452D tech support scam.

Remove dangerous add-ons:

  1. Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
  2. Pick Manage Add-ons.
  3. You will see a Manage Add-ons window. Here, look for suspicious plugins. Click on these entries and select Disable.Remove add-ons from Internet Explorer

Change your homepage if it was altered:

  1. Open IE and click on the Gear icon.
  2. Select Internet Options.
  3. In the General tab, delete the Home page address and replace it by your preferred one (for example, Google.com).
  4. Click Apply and then select OK.Reset IE homepage

Delete temporary files:

  1. Press on the Gear icon and select Internet Options.
  2. Under Browsing history, click Delete...
  3. Select relevant fields and press Delete.Clear temporary files from Internet Explorer

Reset Internet Explorer:

  1. Click on Gear icon > Internet options and select Advanced tab.
  2. Select Reset.
  3. In the new window, check Delete personal settings and select Reset.Reset Internet Explorer

Do not let government spy on you

The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.

Avoid any unwanted government tracking or spying by going totally anonymous on the internet.

You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.

Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.

Backup files for the later use, in case of the malware attack

Computer users can suffer from data losses due to cyber infections or their own faulty doings.

Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.

From our report of Mar 2017 · not reviewed since

Does Error#S47452D removal process take long?

Fortunately, this adware-like scam does not require much of technical intervention.

Firstly, exit the web page which prevents you from exiting it. Then launch a security app to remove Error#S47452D virus. If you cannot close the tab, launch Task Manager with SHIFT+CTRL+ESC and end the tasks related to the browser where the scam appears. After that, install or update your security application and run the scan.

Manual Error # S47452D removal guidelines might come in handy as well. Lastly, revise the list of your system applications. Uninstall the unnecessary ones and keep only those which are daily usable . Make sure all crucial software is up-to-date.

Questions about Error # S47452D" virus

Can I safely uninstall Error # S47452D" virus?

If you did not install Error # S47452D" virus yourself and it is not part of your hardware or a program you rely on, yes. Uninstalling an unwanted program does not harm Windows.

Before you do, search the exact name and publisher to be sure it is not a driver tool, a printer utility or a game launcher with an odd name. Then remove it from Settings, Apps, Installed apps.

Ignore any offers or warnings in its uninstaller about losing protection or performance. Afterwards check Startup apps and your browsers for leftovers, and restart once to confirm that it does not reinstall itself.

Error # S47452D" virus came back after I uninstalled it. Why?

Something else is reinstalling it. Common causes are a second program from the same publisher, a scheduled task that downloads it again, or a browser extension that keeps prompting for it. Sort Installed apps by install date and uninstall each entry from the same day that you did not choose.

Then open Task Scheduler and look in the Task Scheduler Library for tasks with updater-style names that you do not recognise. Check Startup apps in Task Manager too. If Error # S47452D" virus still returns, start Windows in Safe Mode, uninstall it there and run a Microsoft Defender offline scan, which looks for loaders that ordinary scans can miss.

Why is my browser so slow since the ads started?

Each page now does extra work. An adware extension reads the page, decides where to put ads, loads them from ad servers and reports your visit, and that happens on every tab. Ad-supported programs add their own background activity.

Removing the extension or program usually makes the browser fast again at once. If it stays slow, open the browser's own task manager with Shift+Esc in Chrome or Edge and look for extensions using a lot of memory or processor time.

I let a "support technician" from an ad connect to my PC. What should I do?

Act quickly but calmly. Disconnect the PC from the internet first, so the connection ends. Uninstall the remote access tool they asked you to install and check Installed apps for anything else added during the call.

Run a Microsoft Defender full scan and offline scan. From another device, change your e-mail and banking passwords and sign out of all sessions.

If you paid by card, bank transfer or gift card, contact your bank or the card issuer immediately, and report the scam to the police. Do not answer if they call back.

Did Error # S47452D" virus collect my data?

Adware typically collects what it needs to choose ads:

  • the sites you visit
  • search terms
  • approximate location
  • browser and system details

Extensions with permission to read and change data on all websites can technically see everything on those pages, including forms. That is a privacy problem rather than proof of theft.

If you typed card details or passwords while it was active, changing the most important passwords is a reasonable precaution. Clearing cookies after removal ends the tracking sessions it may have started.

My scan found nothing, but the ads continue. Why?

Because the source may not be a file a scanner looks for. Browser notifications are a permission stored in the browser, and many adware extensions are not flagged because they come from an official store.

Some ad-supported programs are only reported if you enable detection of potentially unwanted apps. So a clean scan does not mean the job is done. Check each browser's notification permissions and extension list by hand, and turn on Potentially unwanted app blocking in Windows Security before scanning again.

Can an adware pop-up infect my PC just by appearing?

No. A pop-up, a notification or a new tab is only a web page or a message. It cannot run programs on Windows by itself, provided the browser and Windows are up to date. Infection needs a step from you:

  • running a downloaded file
  • installing an extension
  • giving a stranger remote access

That is why scam pages work so hard to make you click. Close such pages with the tab's X or by closing the browser, not with buttons inside the page, which may start a download.

What is Error # S47452D?

Error#S47452D virus is the name of a tech support scam targeted at both, Windows and Mac OS users. It comes in the form a lock screen web page. The summary table at the top of this guide lists the type, the detection names, the symptoms and the damage of Error # S47452D.

Reading it first helps you decide whether your computer shows the same signs. The removal plan below it works in order, from the safest step to the more thorough ones.

Will Fortect remove Error # S47452D" virus?

Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.

For Error # S47452D" virus, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.

Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.

Sources

  1. Google Chrome Help: Use notifications to get alerts (no longer online) (read October 7, 2026)
  2. FTC: How to recognize, remove and avoid malware (read October 7, 2026)
  3. Microsoft Learn: Microsoft Defender Offline (read October 7, 2026)
  4. Microsoft Learn: How Microsoft names malware (read October 7, 2026)

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