Centrumbook.com ads: what it is and how to remove it
Internet users may occasionally stumble upon Centrumbook.com website, often unwittingly, contributing to the effectiveness of its scam. This deceptive platform cleverly manipulates visitors into clicking an "Allow" button displayed in a pop-up prompt.
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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Centrumbook.com ads: summary
| Distribution | Intrusive pop-ups can start showing up at some point after the "Allow" button is pressed within the notification prompt |
|---|---|
| Damage | If you click on links provided by the website, you might end up infecting your system with malware/PUPs, disclosing your personal information to cybercriminals, or losing money for useless services |
| Name | Centrumbook.com |
| Type | Push notifications, pop-ups, ads, scam |
| Symptoms | You may start seeing intrusive pop-ups on your desktop – clicking these may lead to insecure or even malicious websites |
| 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
| Evidence | One write-up by a security site; details still limited |
|---|---|
| Domains | centrumbook.com |
| Ads shown as | Desktop notifications |
| Browsers | Chrome, Edge and Firefox |
| Installed on the PC | Nothing; a browser notification permission only |
| First seen | 9 June 2023 |
| Facts checked | 7 October 2026 |
Is Centrumbook.com ads dangerous?
From our report of Jun 2023 · not reviewed since
Centrumbook.com is a scam website made by crooks to trick people visiting it
Internet users may occasionally stumble upon Centrumbook.com website, often unwittingly, contributing to the effectiveness of its scam.
This deceptive platform cleverly manipulates visitors into clicking an "Allow" button displayed in a pop-up prompt. This action, seemingly benign, enables push notifications from the site.
Once activated, these notifications bombard the user with a barrage of misleading messages directly on their screens. These range from fraudulent virus infection warnings aimed to instill panic to fake lottery winnings that elicit excitement or even get-rich-quick scams that promise easy financial gains. Links shown by Centrumbook.com aim to exploit the users' emotions and reactions, leading them down dangerous paths involving phishing attempts, malware, or other types of cybercrime.
However, victims of Centrumbook.com can rectify this situation. A straightforward fix involves changing the push notification settings on their browser to block notifications from the site. In addition, users are recommended to perform thorough checks for potential infections, as the scams often serve as a front for more insidious forms of malware.
From our report of Jun 2023 · not reviewed since
How do push notifications work?
Push notifications are automated messages sent by an application or a website to a user's device.
These can be received on desktops, laptops, and mobile devices, even when the application or website isn't actively in use. They work by establishing a communication channel between the server (the website or application) and the client (the user's device).
When implemented by websites, users usually receive a prompt asking if they wish to allow or block notifications from that particular site. If the user allows it, they will start receiving notifications on their device.
Push notifications can be highly beneficial. They offer real-time updates, reminders, and alerts, keeping users informed about important news, updates, and offers. For instance, a weather application might send push notifications about forecast updates, or a news website might push breaking news alerts.
From our report of Jun 2023 · not reviewed since
Are they the same as pop-up ads?
It's worth noting the difference between push notifications and pop-up ads.
While both appear on a user's device, pop-up ads typically appear while a user is actively browsing a website and are presented within the browser window. Push notifications, on the other hand, can appear even when the browser is closed, displaying messages on the device's notification area.
Unfortunately, while push notifications serve a legitimate and often useful function, they can be exploited by scammers. Misleading prompts can trick users into allowing push notifications from malicious websites, such as the Centrumbook.com scam. Once permission is granted, scammers send out a deluge of unwanted notifications containing clickbait links, false virus warnings, or deceptive advertisements.
The end goal for these scammers is often to generate advertisement revenue. Each time a user clicks on these notifications, the scammers profit. This malicious use of push notifications exploits the trust users place in this communication feature and turns an otherwise beneficial tool into a vehicle for scams and malware distribution.
It's, therefore, crucial for users to be discerning about which websites they allow to send push notifications and to regularly manage their browser settings to avoid falling victim to such schemes.
From our report of Jun 2023 · not reviewed since
Misleading messages used by Centrumbook.com and similar scam sites
Scammers have devised an elaborate scheme using push notifications to deceive users, often by mimicking familiar internet practices.
The ploy typically begins with a seemingly harmless message encouraging the user to allow notifications.
These messages, among others, are designed to manipulate users' trust and exploit their familiarity with commonplace online interactions. Here are some of the most commonly employed messages:
Understanding these deceptive tactics can help users maintain their online safety and avoid falling into these push notification scams.
- "Click Allow to confirm you're not a robot" message exploits users' familiarity with human verification procedures such as captchas, making the scam seem credible.
- "If you are 18+, click Allow" is used as a counterfeit age verification method. Many legitimate websites require age verification, so this process appears reliable to many users.
- "Click 'Allow' to win a prize and pick it up from our store!" is a deceptive promise of extravagant rewards through a fake giveaway. The hard truth is that there are no actual prizes or winners.
- "Click Allow to watch the video"message often involves displaying a fake video GIF about to start playing or imitating a YouTube video format, etc.
From our report of Jun 2023 · not reviewed since
More from our earlier report on Centrumbook.com
- Access browser settings to stop intrusive push notifications.
- After that, make sure that your system is not infected with adware or malware - scan it with
- Some remnants of apps stay in browsers and can be used for tracking.
- Delete these with , which can also fix any virus damage found on the system
Check your browser and PC
- Address:
centrumbook.com
How to remove Centrumbook.com ads
How to stop Centrumbook.com notifications
Do this in every browser you use, and in every profile inside it: each keeps its own list of sites allowed to send notifications.
Nothing has to be uninstalled for the notifications themselves.
Which browser shows the ads?
Step 1: Remove centrumbook.com from Chrome's notification list
Open More (the three dots) > Settings > Privacy and security > Site settings > Notifications, or paste
chrome://settings/content/notificationsinto the address bar.Under Allowed to send notifications, open the menu next to
centrumbook.comand choose Remove or Block, and do the same for any other address you do not recognise.Next to Not allowed to send notifications, click Add and enter centrumbook.com, so the site cannot ask again. The menus are the same in Chrome on Windows 11 and Windows 10, and each Chrome profile keeps its own list.
Chrome on Windows 11: Settings > Privacy and security > Site settings > Notifications. Full procedure with screenshots: Stop website notifications and pop-ups
Step 1: Remove centrumbook.com from Edge's notification list
Edge stores its own permission list, separate from Chrome's, and it is often the browser behind these pop-ups on Windows 11 and Windows 10.
Go to Settings > Privacy, search, and services > Site permissions > All permissions > Notifications, or paste
edge://settings/content/notifications. Removecentrumbook.comfrom Allowed, then add it under Not allowed to send notifications. Notifications that show the Edge logo come from this list.
Edge on Windows 11: Site permissions > All permissions > Notifications. Full procedure with screenshots: Stop website notifications and pop-ups
Step 1: Remove centrumbook.com from Firefox's notification permissions
In Firefox the permission sits in Settings > Permissions and data > Notifications (in older versions Privacy & Security > Notifications > Settings). Select
centrumbook.comin the list, click Remove Website, and confirm with Save Changes.Firefox only shows these notifications while it is open, so if they stopped after closing Firefox, this is the browser to clean. The steps are the same on Windows 11 and Windows 10.
Firefox on Windows 11: the Notification Permissions window. Full procedure with screenshots: Stop website notifications and pop-ups
Then, whichever browser you use
Step 2: Scan the PC if you downloaded anything from the ads
Most people who only saw the notifications can skip this step. If a notification or the page it opened made you download or run a file, delete the file and run a full scan, then a Microsoft Defender Offline scan.
In Windows 11 and Windows 10 open Windows Security > Virus & threat protection > Scan options, select Microsoft Defender Antivirus (offline scan) and click Scan now. The PC restarts and the scan takes about 15 minutes, so save your work first.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
More removal instructions
For programs installed on the PC and older browsers. Open the one you need.
Removal of Centrumbook.com ads
Encountering questionable websites could sometimes be a result of accidental redirection.
However, persistent encounters with such sites, along with experiences of unwanted pop-ups, dubious offers, discounts, or redirection through shady web addresses while browsing, might indicate the presence of adware affecting your browser.
In light of this, it's advisable to conduct a comprehensive system scan with robust security software like , , or another reliable alternative. Such a scan would not only ensure your system is purged from adware, browser hijackers, trojans, backdoors, and other forms of malware which could inflict serious harm but also reinforce your defenses against future malware invasions.
Once the scan has successfully identified and eliminated any undesired and malicious programs, we suggest using a tool like to clean your browsers and repair any virus-induced damage that may have occurred. This preventative measure can enhance your computer's resilience against future cyber attacks.
Regarding the intrusive Centrumbook.com ads, their access can be revoked via your browser's settings, effectively putting a stop to these unwanted push notifications:
Google Chrome (Android)
- Open the 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 position).
- Open Mozilla Firefox and go to Menu > Options.
- Click on Privacy & Security section.
- Under Permissions, you should be able to see Notifications. Click the 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 the 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 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.
- Open Internet Explorer, and click on the Gear icon at the top-right of the window.
- Select Internet options and go to the Privacy tab.
- In the Pop-up Blocker section, click on Settings.
- Locate the web address in question under Allowed sites and pick Remove.
Choose a proper web browser and improve your safety with a VPN tool
Online spying has got momentum in recent years and people are getting more and more interested in how to protect their privacy online.
One of the basic means to add a layer of security - choose the most private and secure web browser. Although web browsers can't grant full privacy protection and security, some of them are much better at sandboxing, HTTPS upgrading, active content blocking, tracking blocking, phishing protection, and similar privacy-oriented features.
However, if you want true anonymity, we suggest you employ a powerful VPN - it can encrypt all the traffic that comes and goes out of your computer, preventing tracking completely.
Lost your files? Use data recovery software
While some files located on any computer are replaceable or useless, others can be extremely valuable.
Family photos, work documents, school projects - these are types of files that we don't want to lose. Unfortunately, there are many ways how unexpected data loss can occur:
- power cuts
- Blue Screen of Death errors
- hardware failures
- crypto-malware attack
- even accidental deletion
To ensure that all the files remain intact, you should prepare regular data backups. You can choose cloud-based or physical copies you could restore from later in case of a disaster. If your backups were lost as well or you never bothered to prepare any, can be your only hope to retrieve your invaluable files.
Questions about Centrumbook.com ads
Why do I get notifications from centrumbook.com when the browser is closed?
Chrome and Edge can keep a small part running in the background so that sites can deliver notifications, and Windows shows them in its notification area. That is why messages from centrumbook.com keep arriving with no browser window open.
The permission to send them was granted when someone clicked Allow on a prompt from that site, often disguised as a robot check or a video player. Closing the browser does not remove it; only the notification settings do.
Remove centrumbook.com from the allowed sites and the background messages stop. You can also stop the browser from running in the background in its system settings, but the permission is the real fix.
I clicked a notification from centrumbook.com. What should I do?
If you only opened the page and closed it, nothing else is needed besides removing the permission from centrumbook.com. If the page asked for card details, a phone number or a password and you entered them, act on that: call the bank to block the card, or change the password from another device.
If it offered a download, delete the file unopened, or uninstall it from Installed apps if you ran it, then run a full scan. If you called a number shown on the page, follow the steps for callers in this guide. Finally, remove the permission so that no more messages arrive.
What is Centrumbook.com?
Centrumbook.com is a push-notification spam site, a kind of adware. It earns money by showing desktop notifications, and each view, click or redirect pays whoever runs it. It is not something people usually choose; it arrives through a free download, a fake button or a misleading prompt.
Centrumbook.com does not encrypt files or take control of Windows, but its ads are sold to anyone, including scam operators, so they can lead to fake virus warnings and unwanted downloads. The steps in this guide remove it from Windows and from each browser.
Why does centrumbook.com keep showing up?
There are two possible reasons. If it appears as desktop notifications, a browser on this PC was given permission to receive them from centrumbook.com, usually through a misleading prompt. That permission stays until you remove it in the browser's site settings.
If it appears as tabs or redirects, an ad on a site you visit is opening it, or an extension or program on the PC is. Test a private window: if centrumbook.com never appears there, an extension is the likely cause. The plan above covers each case.
Do I have to change settings in every browser?
Only in the browsers that allowed centrumbook.com, but checking all of them takes a minute and is worth it. We saw the notifications in Chrome, Edge and Firefox. Chrome and Edge keep their notification lists under site settings, and Firefox under Privacy & Security > Permissions.
Remove centrumbook.com and any other unfamiliar site from each list, then turn off new notification requests if you do not need them. Remember that every browser profile has its own list, so a second profile can keep the messages coming after you clean the first.
Are the pop-ups I see really from Centrumbook.com?
Compare them with the details in the table above. Centrumbook.com produces desktop notifications, and the clearest sign of it is notifications from centrumbook.com. Other adware looks similar, so check the name of the sending site at the bottom of a notification, the address in the tab that opened, or the newest entries on the extensions page.
If those match, this guide fits. If you see a different name, the same kind of steps apply, but remove the item you actually find rather than guessing.
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.
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.
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.
Will Fortect remove Centrumbook.com?
No program removes Centrumbook.com itself, because there is nothing on the PC to remove: the notifications come through a permission saved in the browser, and only the browser's settings take it away, as the steps above show.
What Fortect can do is check the rest of Windows. Its free scan looks for malware, unwanted programs and damaged system files, which is useful if you clicked the ads, downloaded something from the pages they opened, or are not sure what else changed on the PC.
If the scan finds nothing and the notifications stopped after you removed the permission, this problem is solved. Use Microsoft Defender as a second opinion whenever you have downloaded files from pages like these.
Sources
- Google Chrome Help: Use notifications to get alerts (no longer online) (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)
- Microsoft Learn: How Microsoft names malware (read October 7, 2026)