Trojan Spyware Alert – Error Code: #0x564897 ads: what it is and how to remove it

"Trojan Spyware Alert - Error Code: #0x564897" is a fake message that tries to convince users their system is in great danger. The site starts displaying multiple pop-ups that say their computer has been locked to intimidate them.

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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Trojan Spyware Alert – Error Code: #0x564897: trojan spyware alert
Trojan Spyware Alert – Error Code: #0x564897 as our 2022 report showed it.

Trojan Spyware Alert – Error Code: #0x564897 ads: summary

DistributionShady websites, deceptive ads, bundled software
NAMETrojan Spyware Alert – Error Code: #0x564897
TYPEOnline scam; adware
SYMPTOMSA page appears bombarding users with multiple pop-ups that say their system is in danger and blocked so they need to contact Microsoft Support
DANGERScammers can lure out personal information, convince victims to pay for bogus security software or infect their systems with malware
Detection namesNo Microsoft detection name is known
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 8 more facts
DamageNot recorded in the old report
NameTrojan Spyware Alert – Error Code: #0x564897
TypeAdware extension
SymptomsAn unknown program in Installed apps
Evidence7 write-ups by security sites; details still limited
ProgramTrojan Spyware Alert – Error Code: #0x564897
First seen25 January 2022
Facts checked7 October 2026

Is Trojan Spyware Alert – Error Code: #0x564897 ads dangerous?

From our report of Jan 2022 · not reviewed since

"Trojan Spyware Alert - Error Code: #0x564897" is a fake Microsoft tech support scam

"Trojan Spyware Alert - Error Code: #0x564897" is a fake message that tries to convince users their system is in great danger.

The site starts displaying multiple pop-ups that say their computer has been locked to intimidate them. The scam tries to make people believe that Windows Defender, Windows Firewall, and Microsoft have detected a malware infection and they need to contact technical support to remove it.

It is obvious that Microsoft has nothing to do with this fraudulent campaign and scammers are using the well-known brand to make it seem legitimate. Users are then provided with a number that they have to contact.

On the call, scammers will try to gain remote access to the device. They can then perform fake system scans, uninstall legitimate security tools, install dubious antivirus software or infect their machine with malware, like trojans, and ransomware.

A particularly worrying thing is that scammers often install RATs (Remote Access Trojans) which provide the ability to access the machine without the users' knowledge for an unlimited amount of time. Fraudsters can gain control over users' personal files, like photos, videos, documents, and later blackmail them. The opportunities are limitless once you give crooks full access to your machine.

Trojan Spyware Alert – Error Code: #0x564897: trojan spyware alert
Trojan Spyware Alert – Error Code: #0x564897 in our 2022 report.
Trojan Spyware Alert – Error Code: #0x564897: error code
Trojan Spyware Alert – Error Code: #0x564897 in our 2022 report.

From our report of Jan 2022 · not reviewed since

The pop-up message

Below you can see a message in one of the pop-ups from the scam website:

The message states that Microsoft has been alerted about an adware infection and as a result, blocked the machine. Scammers list the things that could be compromised and rush users to contact the provided number so the threat could be dealt with. You should never believe this or similar messages. Microsoft can never block your Windows computer even if it is infected with malware or viruses.

Crooks use various scare tactics to prevent people from exiting the site, saying that it can result in further damage. In reality, if you stumble upon a page like this, you should close it immediately and not interact with it. Ending the browser session in the Task Manager is also recommended to stop the page from reappearing when you open the browser again.

From our report of Jan 2022 · not reviewed since

Look for malicious browser extensions

This tech support scam page could have appeared because you have a malicious extension added to your browser.

Web-based applications can gain control over your browser and change important settings. Then the app can start generating pop-ups, banners, and causing redirects to shady websites. We suggest you go to your browser settings and remove the plugins you have added one by one to see if you notice any difference.

You should also take care of your browsers by clearing them from any tracking technologies that could have been deployed by suspicious sites. Cookies and cache are normally used to personalize the user experience by showing people relevant results and suggestions catered to their hobbies.

However, cookies can also be used by fraudsters to make a profit. They can be sold to advertising networks or other third parties and used to target you with bogus ads even more. Besides that, fraudsters then gain access to information like your IP address, geolocation, websites you visit, links you click on, and things you purchase online.

Since some researchers have observed that the "Trojan Spyware Alert - Error Code: #0x564897" scam was promoted via the Amazon AWS service which has been known to display shady pop-ups and redirect users to suspicious sites, you should definitely clean your browsers.

You can use a maintenance tool like that can do it all - stop the tracking, and delete the already collected data, since it is stored on your device. It can also fix serious system errors, corrupted files, and registry issues which is especially helpful after a virus infection.

MS Edge (Chromium)

MS Edge (legacy)

  • Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
  • In the newly opened window, you will see all the installed extensions. Uninstall all the suspicious plugins that might be related to the unwanted program by clicking Remove.
  • Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the window's top-right).
  • Select Add-ons.
  • In here, select the unwanted plugin and click Remove.
  • Open Edge and click select Settings > Extensions.
  • Delete unwanted extensions by clicking Remove.
  • Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
  • From the list, pick the extension and click on the Gear icon.
  • Click on Uninstall at the bottom.

From our report of Jan 2022 · not reviewed since

Scan your machine with professional security tools

We previously discussed all the ways you could have ended up on the "Trojan Spyware Alert - Error Code: #0x564897" scam site using the Internet.

Unfortunately, there are other ways it could have gotten to you. For example, adware is a type of PUP (potentially unwanted program) that can generate commercial content, like pop-ups, banners, and redirects on a machine without the users' knowledge.

There is a big possibility that you have adware or another type of PUA installed in your machine that is redirecting you to pages from unsafe advertising networks. Such programs often get inside the operating system with freeware. Freeware distribution sites use software bundling to make a profit, which means they include additional programs in the installers that monetize user activity.

In order to prevent this from happening, use only official web stores and developer websites. Even though it might get costly, you may save in the long run by not having your system damaged or falling into the traps of Internet scams.

You can also choose the "Custom" or "Advanced" installation method so no steps would be hidden from you. It is very important to check the file list and untick the boxes next to any unnecessary programs if there are any.

The adware removal part can be tricky as it is often disguised as a "handy" tool to make it harder to identify. It could look like an antivirus, system optimizer, media player, you name it, so the best solution is to use professional security tools that can scan your machine and detect suspicious processes in the background.

and are great options because they are proven and trusted anti-malware tools. They can detect most threats hiding in your machine, and eliminate them completely. Manual removal can sometimes result in the renewal of infection as users fail to eliminate all the related files that are hidden in various folders. However, if you still want to do this yourself, you can proceed with the guide below:

  • Enter Control Panel into Windows search box and hit Enter or click on the search result.
  • Under Programs, select Uninstall a program.
  • From the list, find the entry of the suspicious program.
  • Right-click on the application and select Uninstall.
  • If User Account Control shows up, click Yes.
  • Wait till the uninstallation process is complete and click OK.

From our report of Jan 2022 · not reviewed since

More from our earlier report on Trojan Spyware Alert – Error Code: #0x564897

  • Check your browser for malicious extensions and scan your machine with anti-malware tools
  • Windows Defender - Security Warning Alert ACCESS TO THIS PC HAS BEEN BLOCKED FOR SECURITY REASONS Your computer has alerted us that it has been infected with a Trojan Spyware.
  • Email Credentials Banking Passwords Facebook Login Pictures & Documents Windows Defender Scan has found potentially unwanted Adware on this device that can steal your passwords, online identity, financial information, personal files, pictures or documents.
  • You must contact us immediately so that our engineers can walk you through the removal process over the phone.
  • Call Microsoft Support immediately to report this threat, prevent identity theft and unlock access to this device.
  • Closing this window will put your personal information at risk and lead to a suspension of your Windows Registration.
  • Call Microsoft Support: +61-1800-951-046 (AUS Toll Free)

How to remove Trojan Spyware Alert – Error Code: #0x564897 ads

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

    In Chrome open chrome://extensions, in Edge edge://extensions, and in Firefox the menu > Extensions and themes.

    Remove every extension you do not remember adding, especially search, new tab, coupon, PDF, weather or video downloader add-ons. Check every browser and every profile, because each keeps its own list.

    If an extension has no Remove button or comes back, a browser policy holds it (see "Managed by your organization" in the procedure below). The pages are the same on Windows 11 and Windows 10.

    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 Trojan Spyware Alert – Error Code: #0x564897

    Trojan Spyware Alert – Error Code: #0x564897 is removed like any other program, from the list of installed apps.

    In Windows 11 that is Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and in both you can also use Control Panel > Programs and Features. Select Trojan Spyware Alert – Error Code:

    • #0x564897
    • click Uninstall
    • follow the uninstaller to the end

    Then look at the entries just above and below it when the list is sorted by date: bundled programs install at the same minute.

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

  3. Step 3: Reset the browser

    A reset removes what the steps above could miss:

    • changed start pages
    • site permissions
    • hidden settings

    In Chrome open Settings > Reset settings > Restore settings to their original defaults; in Edge Settings > Reset settings; in Firefox Help > More troubleshooting information > Refresh Firefox.

    Tip: Bookmarks and saved passwords stay, while extensions are turned off and the search engine and start page return to the defaults.

    Reset every browser on the PC, including Edge, which Windows 11 and Windows 10 always have.

    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

    A scan finds the parts of Trojan Spyware Alert – Error Code: #0x564897 that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.

    Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.

    It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.

    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

Stream videos without limitations, no matter where you are

There are multiple parties that could find out almost anything about you by checking your online activity.

While this is highly unlikely, advertisers and tech companies are constantly tracking you online. The first step to privacy should be a secure browser that focuses on tracker reduction to a minimum.

Even if you employ a secure browser, you will not be able to access websites that are restricted due to local government laws or other reasons. In other words, you may not be able to stream Disney+ or US-based Netflix in some countries. To bypass these restrictions, you can employ a powerful VPN, which provides dedicated servers for torrenting and streaming, not slowing you down in the process.

Data backups are important - recover your lost files

Ransomware is one of the biggest threats to personal data.

Once it is executed on a machine, it launches a sophisticated encryption algorithm that locks all your files, although it does not destroy them. The most common misconception is that anti-malware software can return files to their previous states. This is not true, however, and data remains locked after the malicious payload is deleted.

While regular data backups are the only secure method to recover your files after a ransomware attack, tools such as can also be effective and restore at least some of your lost data.

Questions about Trojan Spyware Alert – Error Code: #0x564897 ads

What is Trojan Spyware Alert – Error Code: #0x564897 and why is it on my PC?

Trojan Spyware Alert – Error Code: #0x564897 is a program that was installed on the PC, most likely together with something else you downloaded. Free software sites and many installers add extra programs on setup pages with pre-ticked boxes, so the extra install looks like your choice even though nobody read the page.

Check the install date in Settings, Apps, Installed apps: the program you installed that day is the probable carrier. If you do not need Trojan Spyware Alert – Error Code: #0x564897, uninstall it. If it belongs to your hardware or to a program you use, search its exact name and publisher first, because drivers and their tools can have unfamiliar names.

Trojan Spyware Alert – Error Code: #0x564897 will not uninstall. What can I do?

First restart the PC and try again, because the program may have been running and locked its own files. If the uninstaller is missing or fails, start Windows in Safe Mode, where most third-party programs do not start, and remove Trojan Spyware Alert – Error Code: #0x564897 from Installed apps there.

If it still refuses, delete its startup entry and its scheduled task, restart, and try once more. A program that actively prevents removal is behaving like malware, so finish with a Microsoft Defender offline scan. Avoid third-party uninstallers offered on search ads; several of them are unwanted programs themselves.

Does adware steal passwords?

Ordinary adware is built to show ads, not to steal logins, and most of it never touches saved passwords. The line is blurry, though. Extensions that can read every page could capture what you type, and adware ads sometimes lead to phishing pages that ask for passwords directly.

If you entered credentials on a page reached through an ad, change that password from a clean device and turn on two-step verification. Otherwise, removing adware extension and clearing cookies is usually enough.

An ad showed a phone number and I called it. What now?

The number belongs to scammers, not to Microsoft or an antivirus company. If you only talked, hang up and do not call back. If you let them connect to the PC, disconnect it from the internet, uninstall the remote access program they used, such as AnyDesk, TeamViewer, ScreenConnect or UltraViewer, and run a full and offline scan.

If you paid or gave bank details, call your bank at once on the number printed on your card. Change any passwords you typed while they were connected, and report the call.

Can adware slow down my PC?

Yes. Adware runs in the background, loads ad scripts, opens extra tabs and contacts its servers, all of which use processor time, memory and bandwidth. Ad-heavy extensions also slow down every page, because they inspect and change it before you see it.

The effect is strongest on older PCs and when several adware programs arrived together. After removal, restart the PC and check Task Manager for anything still using a lot of resources that you do not recognise. Speed usually returns to normal once the ads stop.

Why didn't my antivirus catch Trojan Spyware Alert – Error Code: #0x564897?

Many security products do not block adware or notification sites by default, because users often agreed to them, even through a misleading prompt. Notification spam installs nothing at all, so there is no file to detect.

In Windows 11 you can make Microsoft Defender block potentially unwanted apps: open Windows Security > App & browser control > Reputation-based protection settings and turn on Potentially unwanted app blocking. If notifications caused the pop-ups, no scanner will report them; the fix is in the browser's site settings.

I clicked on one of the ads. Am I infected?

Probably not. Clicking an ad usually only opens a page, and a page cannot install programs on an up-to-date Windows PC without your help.

You are at risk only if you then downloaded and ran a file, allowed notifications, entered card or login details, or called a phone number shown on the page. Delete any download and run a full and offline scan.

Change passwords you typed, from a clean device. Call your bank if you gave card details. If you called a number or allowed remote access, see the next question.

Does Trojan collect my data?

Our report does not list what Trojan records, but software of this kind commonly tracks browsing data. Typical data includes the sites you visit, your searches, your approximate location and the device type.

Never enter passwords or card numbers into pages that appear after a redirect you did not expect. After removal, clear cookies and site data, and check your saved passwords.

Will Fortect remove Trojan Spyware Alert – Error Code: #0x564897?

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 Trojan Spyware Alert – Error Code: #0x564897, 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

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