Error 268d3 xc00037: what it is and how to remove it
The digital world is riddled with various scams and cyber threats, one of which is the "Error 268D3-XC00037" scam. Similar to other well-known scams such as "Microsoft Warning Alert" and "Your Device Is Under Threat," this bogus error message preys on unsuspecting users by displaying alarming messages claiming their systems are infected with malware.
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 268d3 xc00037: summary
| Distribution | Software bundling, suspicious ads |
|---|---|
| NAME | Error 268d3 xc00037 |
| TYPE | Phishing, scam |
| SYMPTOMS | Fake Microsoft alert that tries to get users to call fake technical support |
| DANGERS | Might lead to malware infection, sensitive detail disclosure, and lost/stolen money |
| Detection names | No 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 7 more facts
| Damage | Not recorded in the old report |
|---|---|
| Name | Error 268d3 xc00037 |
| Type | Tech support scam page |
| Symptoms | A fake virus warning in a browser tab |
| Evidence | 4 write-ups by security sites; details still limited |
| First seen | 9 June 2023 |
| Facts checked | 7 October 2026 |
Is the Error 268d3 xc00037 warning real?
From our report of Jun 2023 · not reviewed since
Error 268d3 xc00037 is a fake site designed to look like an official Microsoft alert
The digital world is riddled with various scams and cyber threats, one of which is the "Error 268D3-XC00037" scam.
Similar to other well-known scams such as "Microsoft Warning Alert" and "Your Device Is Under Threat," this bogus error message preys on unsuspecting users by displaying alarming messages claiming their systems are infected with malware.
In reality, this error is caused by a malicious website, and its purpose is to trick users into seeking fraudulent technical support services. In this section, we'll look more closely at how the Error 268D3-XC00037 scam works and how it endangers users' privacy and security.
PUPs are frequently responsible for redirecting users to the Error 268D3-XC00037 website without their knowledge. These PUPs infiltrate systems covertly, bringing with them an array of intrusive advertisements, data-gathering techniques, and unnecessary background processes.
The deceptive error message claims that the user's system is infected with dangerous malware that threatens their personal information, including sensitive information such as logins, passwords, and credit card information. To address this apparent threat, victims are directed to a toll-free phone number provided as a means of contacting purported "technical support."
However, Error 268D3-XC00037 is nothing more than a ruse orchestrated by cybercriminals posing as certified technicians. Their primary goal is to dupe users into paying for unnecessary support services and to capitalize on their fears.
Warning: The alleged malware does not exist, and users should never call the phone number provided.
Scammers can install actual malware and change critical system settings by connecting remotely to the victims' computers. As a result, they claim to have discovered additional issues and to be able to provide additional assistance at an additional cost.
To avoid this scam, simply closing the web browser or rebooting the system will remove the malicious website. It is critical not to select the "Restore Previous Session" option, as this will reopen the bogus error page.
From our report of Jun 2023 · not reviewed since
More from our earlier report on Error 268d3 xc00037
- Clear browser cookies and repair system damage with
What the Error 268d3 xc00037 scammers want
From our report of Jun 2023 · not reviewed since
The intrusive nature of PUPs
PUPs play an important role in the spread of the Error 268D3-XC00037 scam.
Aside from their association with such scams, PUPs are a threat to users' online experiences and overall system security. In this section, we will look at how PUPs can disrupt and compromise the integrity of users' computers. One of the most serious problems with PUPs is the delivery of intrusive advertisements.
These advertisements, which can range from coupons to banners to pop-ups, are frequently generated using tools that allow the placement of third-party graphical content on any website. Unfortunately, these advertisements frequently obscure the underlying website content, reducing the browsing experience.
Furthermore, clicking on these intrusive ads can have serious consequences, as they frequently redirect users to malicious websites or trigger scripts that initiate the download and installation of actual malware. Even an unintentional click can result in high-risk computer infections.
Another major issue is the tracking of user information by PUPs. Without the users' knowledge or consent, these programs continuously collect data related to their browsing activities and system details. Personal information, including sensitive information, may be harvested by PUP developers, who may then sell this information to third parties, including cybercriminals. Misuse of private information can result in serious privacy issues and expose users to various forms of abuse.
PUPs consume system resources by running unnecessary processes in the background, in addition to privacy concerns. Some PUPs even mine cryptocurrency, further degrading system performance and decreasing overall efficiency. These programs not only impede productivity but also expose users to the risk of system instability and performance degradation by misusing system resources without user consent.
How to get rid of the Error 268d3 xc00037 pop-up
The warning is a web page and your PC is not infected by it.
Close it, then remove what keeps bringing it back.
Step 1: Close the page without touching its buttons
Press Ctrl + Shift + Esc to open Task Manager, select the browser on Processes and click End task: buttons on the page, including Close and Cancel, can trigger downloads or more pop-ups.
When you reopen the browser, do not restore the previous tabs. Never call a number shown in a browser warning; Microsoft and antivirus companies do not put phone numbers in warnings.
If the page opens again by itself, notifications or an extension are bringing it back. Task Manager works the same in Windows 11 and Windows 10.
Full procedure with screenshots: Close a frozen app (Task Manager, Force Quit) On uGetFix
Step 2: Scan the PC, then run the offline scan
A scan finds the parts of Error 268d3 xc00037 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 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
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 Jun 2023 · not reviewed since
Prevention and protection
It is critical to prevent potentially unwanted programs (PUPs) from infiltrating your computer in order to maintain a safe and secure digital environment.
This section will go over some practical steps and best practices for avoiding PUP installation and protecting your system from their intrusive presence.
One of the primary methods used by PUP developers to spread their programs is the use of intrusive advertisements and a deceptive marketing technique known as "bundling." Bundling is the practice of secretly installing third-party applications alongside regular software, frequently without proper disclosure. Users can unintentionally install PUPs by skipping installation steps and clicking on advertisements, which results in the installation of rogue programs.
To avoid becoming a victim of PUPs, use caution when browsing the internet and downloading/installing software. Intrusive advertisements may appear legitimate at first glance, but they can be identified by their redirection to dubious websites such as survey portals, and gambling platforms. If you encounter such redirects, you must remove any suspicious applications and browser plug-ins immediately.
It is critical to meticulously analyze each window and carefully review the contents of the dialogs during the download and installation process. Opt out of any additional programs that are included and decline offers to download or install them.
Furthermore, it is best to avoid using third-party downloaders or installers, as these are frequently used by crooks to spread PUPs via the bundling method. To ensure the security of your downloads, only obtain software from official sources, and use direct download links whenever possible.
From our report of Jun 2023 · not reviewed since
Scan your system
and are two security software recommendations.
These tools offer comprehensive protection against a variety of threats such as adware, malware, ransomware, and phishing attempts. They have advanced scanning capabilities for detecting and removing infections. Furthermore, their real-time protection features can detect and prevent future threats, keeping your system safe.
To fully remove an unwanted app, you need to access Application Support, LaunchAgents, and LaunchDaemons folders and delete relevant files:
- 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 uninstallation process is complete and click OK.
- Click on Windows Start > Control Panel located on the right pane (if you are Windows XP user, click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.
- Pick the unwanted application by clicking on it once.
- At the top, click Uninstall/Change.
- In the confirmation prompt, pick Yes.
- Click OK once the removal process is finished.
- From the menu bar, select Go > Applications.
- In the Applications folder, look for all related entries.
- Click on the app and drag it to Trash (or right-click and pick Move to Trash)
- Select Go > Go to Folder.
- Enter /Library/Application Support and click Go or press Enter.
- In the Application Support folder, look for any dubious entries and then delete them.
- Now enter /Library/LaunchAgents and /Library/LaunchDaemons folders the same way and terminate all the related .plist files.
From our report of Jun 2023 · not reviewed since
Clear cookies and cache
After ensuring that your system is infection-free, you should clean your browser caches.
This aids in the removal of traces of potentially harmful websites and lowers the risk of future infections. is our recommendation for this task. It's a useful tool for clearing cache, cookies, and browsing history across multiple browsers with a few simple clicks.
You can further secure your system and protect your online privacy by using useful software on a regular basis. Clearing browser caches and checking your system for infections on a regular basis are critical steps in maintaining a secure digital environment. Additionally, it can fix BSOD errors, corrupted files, and registry issues.
Questions about Error 268d3 xc00037
Is the "Error 268d3 xc00037" warning from Microsoft?
No. Microsoft and Windows Security never show warnings inside a browser tab, never ask you to call a phone number and never charge for a scan through a web page. The message "Error 268d3 xc00037" comes from a website that copies the look of a system alert.
It runs a script that shows the same alarm to every visitor, whatever computer they use. Close the tab, and if it refuses to close, end the browser in Task Manager.
Then check the browser's notification permissions and extensions, because those are the usual reason such a page reopens. If you want to know whether the PC is really clean, open the Windows Security app from the Start menu and run a scan there.
The "Error 268d3 xc00037" page made me install something. What now?
Uninstall it first. Open Settings > Apps > Installed apps, sort the list by install date and remove whatever appeared when the page showing "Error 268d3 xc00037" told you to install it. Check the browser's extensions as well, since some pages push an extension instead of a program.
Then run a full scan with Microsoft Defender, and an offline scan if anything is found. If the program was a remote-access tool, or if you typed passwords while it was installed, change those passwords from another device and turn on two-step verification. Keep the file name and the page address; they are useful if you report the scam.
Is my phone affected by Error 268d3 xc00037?
Not through the PC. A scam page in a Windows browser cannot reach a phone, even if both use the same account. The sign reported, A browser warning that reads "Error 268d3 xc00037", happened in a browser on the PC.
Phones can meet similar pages on their own, usually through ads or notifications, and the fix there is the same idea: remove notification permissions and unknown apps. If you used the phone to call a number shown on the page, follow the steps for callers in this guide.
Can Error 268d3 xc00037 harm my PC just by being open?
No. A web page runs inside the browser's sandbox and cannot install programs, read your files or change Windows settings on its own. Error 268d3 xc00037 can only make noise, fill the screen and try to persuade you. The risk begins when you follow it:
- calling the number
- paying
- downloading a file
- pasting a command
Close the page, and if it frightened you into doing one of those, follow the matching steps in this guide. Otherwise, nothing on the PC needs cleaning or repairing.
The agent knew details about my PC. Were they real?
They looked real but proved nothing. Callers from pages like Error 268d3 xc00037 open the Windows Event Viewer, which shows harmless warnings on every PC, or run a command that lists normal system details, and present them as signs of infection. Some type alarming text into a command window themselves.
Nothing they showed you came from a real scan. If they had remote access, follow the clean-up steps anyway, because they may have installed tools while you watched. Change any password they could have seen.
I closed it, but it appeared again the next day. Why?
A page that returns on its own has a trigger. Look at how it appeared: from a pop-up in the corner of the screen means a notification permission; on start-up means a session restore or a changed start page; while browsing any site means an extension; on one particular site means that site's ads.
Each has a quick fix in the browser settings. If none of them explains it, reset the browser, which clears permissions, extensions and start pages together.
Which browser settings protect against fake alerts?
Three matter most. First, notifications: set your browser to ask before allowing them, and block sites you do not trust. Second, reputation checks: SmartScreen in Edge and Safe Browsing in Chrome warn you before known scam pages load, and Firefox has its own deceptive-content protection under Privacy & Security.
Third, pop-ups and redirects: keep the default blocking on. Add a reputable ad blocker if fake alerts keep reaching you through ads on sites you use. Review the notification list every few months.
The page will not close. What can I do?
Press Esc to leave full-screen mode, then close the tab. If the browser is frozen, open Task Manager with Ctrl + Shift + Esc, select the browser and click End task. When you restart the browser, do not restore tabs.
If the page loads again on start, open a new window and close the old one, then remove the page from the browser's startup settings. Restarting the PC also works. Nothing was installed by the page, so closing it by force is safe and loses nothing.
Will Error 268d3 xc00037 come back after I close it?
It may, if the thing that opened it is still there. Closing the tab ends that one page, but a notification permission, an extension or an adware program can open A browser warning that reads "Error 268d3 xc00037" again later.
Check the browser's notification settings and extensions first, then Installed apps for anything new. If the page does not return within a day or two of normal browsing, you have removed the source. If it does, reset the browser, which clears permissions and settings in one step.
Will Fortect remove Error 268d3 xc00037?
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 268d3 xc00037, 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
- Malwarebytes: Malware (read October 7, 2026)
- Wikipedia, the free encyclopedia: Phishing (read October 7, 2026)
- FTC: How to spot, avoid and report tech support scams (read October 7, 2026)
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 7, 2026)