Recaptchacheck.eu: what it is and how to remove it
Recaptchacheck.eu is a fraudulent website that uses deceptive tactics to trick users into subscribing to push notifications. It dupes users into clicking the "Allow" button, ostensibly to verify they are human, but instead bombards them with intrusive pop-up advertisements that persist even after the browser is closed.
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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Recaptchacheck.eu: summary
| Distribution | Shady websites; deceptive ads; freeware installations |
|---|---|
| NAME | Recaptchacheck.eu |
| TYPE | Push notification spam; adware |
| SYMPTOMS | Pop-up ads start appearing in the corner of the screen unexpectedly, sometimes even when the browser is closed |
| DANGERS | The pop-ups can contain links leading to websites from rogue advertising networks |
| 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 9 more facts
| Damage | Not recorded in the old report |
|---|---|
| Name | Recaptchacheck.eu |
| Type | Fake CAPTCHA page |
| Symptoms | A fake CAPTCHA asking to press Win+R |
| Evidence | 4 write-ups by security sites; details still limited |
| Imitates | A human-verification check |
| Domains | recaptchacheck[.]eu |
| First seen | 26 May 2023 |
| Facts checked | 7 October 2026 |
Is the Recaptchacheck.eu check real?
- Address:
recaptchacheck[.]eu
From our report of May 2023 · not reviewed since
More from our earlier report on Recaptchacheck.eu
- Go to your browser settings to disable website permissions
What the Recaptchacheck.eu scammers want
From our report of May 2023 · not reviewed since
Recaptchacheck.eu is a bogus site that was created by crooks to generate revenue passively
Recaptchacheck.eu is a fraudulent website that uses deceptive tactics to trick users into subscribing to push notifications.
It dupes users into clicking the "Allow" button, ostensibly to verify they are human, but instead bombards them with intrusive pop-up advertisements that persist even after the browser is closed.
To make matters worse, these pop-ups may come from rogue advertising networks that direct users to dangerous websites. Individuals are thus exposed to fraudulent platforms that seek to extract personal information, coerce them into downloading potentially unwanted programs (PUPs), or even infect their systems with malware.
Numerous reports have surfaced regarding the appearance of advertisements promoting bogus antivirus software, software deals, bogus giveaways, surveys, and other deceptive schemes. It is critical to disable these pop-ups, especially if multiple users use the affected device, as they may lead to more severe infections. Our comprehensive guide contains detailed instructions.
From our report of May 2023 · not reviewed since
Freeware installations
The most common way for people to inadvertently infect their devices with adware is by installing programs from freeware distribution platforms.
These platforms frequently include additional applications in their installers, disguised as ostensibly useful tools. Many users rush through the installation process, missing these bundled extras.
It is critical to always use the "Custom" or "Advanced" installation methods and to carefully read the Privacy Policy and Terms of Service. The most important step is to inspect the file list thoroughly and deselect any checkboxes associated with unrelated applications. When installing software, it is strongly advised to use only official web stores and developer websites to ensure the safety of your device.
From our report of May 2023 · not reviewed since
How to disable push notifications?
Because push notifications are subscription-based, you will have to disable them yourself:
Google Chrome (desktop):
Google Chrome (Android):
MS Edge (Chromium):
- Open Google Chrome browser and go to Menu > Settings.
- Locate the Privacy and security section and pick Site Settings > Notifications.
- Look at the Allow section and look for a suspicious URL.
- Click the three vertical dots next to it and pick Block. This should remove unwanted notifications from Google Chrome.
- Open Google Chrome and tap on Settings (three vertical dots).
- Select Notifications.
- Locate the unwanted URL and toggle the button to the left (Off setting).
- Open Mozilla Firefox and go to Menu > Options.
- Click on Privacy & Security section.
- Under Permissions, you should be able to see Notifications. Click Settings button next to it.
- In the Settings – Notification Permissions window, click on the drop-down menu by the URL in question.
- Select Block and then click on Save Changes. This should remove unwanted notifications from Mozilla Firefox.
- Click on Safari > Preferences...
- Go to Websites tab and, under General, select Notifications.
- Select the web address in question, click the drop-down menu and select Deny.
- Open Microsoft Edge, and click the Settings and more button (three horizontal dots) at the top-right of the window.
- Select Settings and then go to Advanced.
- Under Website permissions, pick Manage permissions and select the URL in question.
- Toggle the switch to the left to turn notifications off on Microsoft Edge.
- Open Microsoft Edge, and go to Settings.
- Select Site permissions.
- Go to Notifications on the right.
- Under Allow, you will find the unwanted entry.
- Click on More actions and select Block.
From our report of May 2023 · not reviewed since
Cookies and cache
If you successfully blocked ads using your browser settings, you must now take additional precautions by clearing your browser's cookies and cache.
Almost every website uses these elements to track your online activities. They can save information like your IP address, geolocation, visited websites, and online purchases.
This data could be sold to advertising networks or other third parties, which is why security experts recommend clearing your browser's data on a regular basis. We offer an automated solution called if you prefer to avoid a lengthy manual process.
This powerful software not only clears your browser data, but it also fixes system errors, repairs corrupted files, and resolves registry issues. This feature is especially useful after a virus infection.
Why Recaptchacheck.eu opens in your browser
From our report of May 2023 · not reviewed since
In search results, we rarely come across sites like Recaptchacheck.eu.
They typically lurk on unregulated and dubious websites. Illegal streaming platforms, for example, are notorious for hosting deceptive advertisements, hidden redirects, and fake "Download" and "Play" buttons that open new tabs containing harmful content.
It is strongly advised that you limit your visits to websites that you are familiar with and trust. Choose legitimate streaming services such as Netflix or Hulu, which pose no risks. Clicking on random links and advertisements, even if they appear to promote legitimate products or services, should be avoided. It is preferable to go directly to the source website.
Another possibility is that the deceptive page appeared on its own, with no user interaction. This can happen if you have adware on your device. Adware, such as pop-ups, banners, and redirects, can generate an excessive amount of commercial content. It frequently infiltrates systems via freeware installations.
What to do if you ran the Recaptchacheck.eu command
Whether you ran the command decides everything else, so the first step checks that.
Step 1: Check whether the pasted command ran
The fake check asked you to press Windows + R, paste and press Enter. Open the same box and look at its drop-down history: a
powershell,mshtaor curl line you did not type yourself is the command Recaptchacheck.eu gave.Once run, it fetches malware within seconds, so take the PC offline and follow all the remaining steps. If the history is empty or harmless, nothing was started on the Windows 11 or Windows 10 PC.
Full procedure with screenshots: Run a Microsoft Defender Offline scan
Step 2: Scan the PC, then run the offline scan
A scan finds the parts of Recaptchacheck.eu 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
Step 3: Change passwords from another device and sign out other sessions
Recaptchacheck.eu can copy saved passwords, cookies and session tokens and send them out in seconds, so cleaning the PC does not undo the theft.
Change your passwords on a device that was never infected, starting with the e-mail account, since every other reset goes through it. On each account, end all other sessions and check the recovery e-mail, phone number and forwarding rules.
Then turn on two-step verification. Sign in on the Windows 11 or Windows 10 PC again only after the offline scan is clean.
Full procedure with screenshots: Turn on two-step verification / secure a hacked account
Step 4: Delete scheduled tasks that bring it back
Programs like Recaptchacheck.eu add a scheduled task so they return after an uninstall or reopen a page at every sign-in. Start Task Scheduler, open Task Scheduler Library and sort by Last Run Time to see what ran recently.
On the Actions tab, a program in a user folder, a script or a web address is a warning sign; right-click such a task and choose Delete.
Tasks with names copying Google, Edge or Windows updaters but pointing to an odd folder are typical. The tool looks the same in Windows 11 and Windows 10.
Windows 11: Task Scheduler Library, the task selected, the Actions tab shows the file it runs. Full procedure with screenshots: Remove what malware leaves behind in Windows
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.
From our report of May 2023 · not reviewed since
Remove adware from your system
If you have followed the aforementioned steps but continue to encounter unwanted symptoms such as an excessive presence of commercial content, pop-ups, banners, and redirects, it is advisable to investigate the possibility of an adware infection on your system.
These software solutions can automatically scan your machine and thoroughly eliminate any adware infections. Additionally, security software can provide proactive warnings before any malicious programs can make unauthorized changes.
However, if you prefer to tackle the issue manually, below are the instructions for Windows and macOS systems:
To entirely 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 suspicious entries and then delete them.
- Now enter /Library/LaunchAgents and /Library/LaunchDaemons folders the same way and terminate all the related .plist files.
Questions about Recaptchacheck.eu
What did the recaptchacheck[.]eu verification command do?
In ClickFix campaigns the pasted line starts a hidden PowerShell, mshta or curl process that fetches a script from a remote server and runs it. That script installs the real payload, most often an information stealer, sometimes a remote access tool or a loader that brings more malware later.
The exact payload of recaptchacheck[.]eu can change from day to day, which is why the safe response does not depend on knowing it: scan offline, remove what was added and change passwords from another device. Look in the Run box history with Win+R to confirm the command was executed.
Was recaptchacheck[.]eu hacked, or is it a scam site?
Both happen. Many ClickFix pages are injected into legitimate websites whose software was not updated, so a site you know can suddenly show a fake check. Others sit on throwaway domains reached through ads or links in messages.
For you the answer is the same: do not follow the instructions on recaptchacheck[.]eu, and if you already did, clean the PC and change passwords. If the site belongs to a business you trust, let them know through a contact form; they may not realise their pages have been tampered with.
Does a human-verification check know about Recaptchacheck.eu?
Large brands such as a human-verification check are aware that scammers copy their names and logos, and most have pages where you can report such abuse. They do not run these pages and do not profit from the warnings themselves.
Sometimes an affiliate of an antivirus vendor sends traffic through fake alerts, which breaks the vendor's rules and gets the affiliate banned when reported. If you want to help, report the page address to the brand's security team and to your browser through its report option.
Why does my browser keep opening recaptchacheck[.]eu?
Because something sends you there. The usual causes are a notification permission you gave to some site, an adware extension, or a site you visit often that shows redirect ads. The site itself cannot open on its own.
Remove unknown sites from the notification settings, check the extensions list, and do not restore the previous session when the browser starts. If the page appears even with the browser closed, look in Installed apps for programs you did not install. Running a scan with Windows Security afterwards confirms that nothing else is involved.
Why does Recaptchacheck.eu use the a human-verification check design?
Because people see real a human-verification check checks every day and click through them without thinking. The attackers copy the familiar box, the colours and the wording, then add a few extra steps that look like part of the routine.
The trust in the real service is what makes the trick work. That is also why the page appears on ordinary websites: a hacked site with a familiar check feels safe. The extra keyboard steps are the only reliable sign, and they are always fake.
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.
Does Recaptchacheck.eu affect other devices at home?
No. A page in a browser lives in that browser on that PC. The pattern reported, A fake CAPTCHA on recaptchacheck[.]eu that asks you to paste a command, does not spread across a home network or through the router.
Other devices are only affected if they visit the same kind of site or if you used them to call, pay or install something the page asked for.
If you share a browser profile through sync, check notification settings and extensions on each computer that uses that profile, because a permission granted on one PC can follow you to the others.
Can Recaptchacheck.eu 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. Recaptchacheck.eu 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.
Why is pasting a command so dangerous?
Because it skips every protection that would stop a normal download. Browsers check files you download and SmartScreen checks programs you open, but a command you type yourself is trusted as your own action. Pages like Recaptchacheck.eu exploit exactly this.
The command fetches and runs code in memory, often leaving little on the disk for a quick scan to find. That is why the advice is absolute: no website has a legitimate reason to make you paste anything into Run, Terminal or PowerShell.
Will Fortect remove Recaptchacheck.eu?
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 Recaptchacheck.eu, 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
- Howtogeek: PUPs Explained: What is a "Potentially Unwanted Program"? (read October 7, 2026)
- Makeuseof: Why Should You Avoid Illegal Streaming Sites? (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)