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A WebAdvisor-looking pop-up does not automatically mean your PC has a virus. It may come from the legitimate McAfee WebAdvisor app or browser extension, a website you allowed to send notifications, or unwanted software. Identify the sender first: revoke a suspicious site’s notification permission, remove WebAdvisor if you no longer want it, and scan Windows if alerts persist outside the browser or come with other suspicious changes.
First: don’t click the alert
Do not select “Scan,” “Remove,” or “Renew,” download a tool offered by the message, call a number in it, or provide payment details, passwords, or remote access. A web page can display an arbitrary virus count and imitate McAfee branding; that wording does not prove a scan took place.
If the browser is frozen, press Ctrl + Shift + Esc to open Task Manager, select the browser, and choose End task. When reopening it, avoid restoring the suspicious tab if prompted. Closing the browser is a containment step, not evidence that Windows is infected.
Find out where the pop-up comes from
| What you see | Likely source | Start here |
|---|---|---|
| Alerts appear only on one website | The page itself or a permission you granted it | Close the tab and remove that site’s notification permission |
| A notification appears in a corner with Chrome or Edge identified as the sender | Browser push notification | Block or remove the site in that browser’s notification settings |
| The message appears inside a browser tab or follows you across pages in that browser | A page, browser extension, or altered browser setting | Close the page; inspect extensions and startup/search settings |
| It appears in more than one browser | A Windows app, multiple extensions, or adware is more plausible | Check installed apps and extensions; scan if it continues |
| It appears with every browser closed | A Windows notification or background application | Identify the notification sender; check apps and Startup |
| It demands a phone call or payment | A tech-support scam | Do not call, pay, click, or grant access |
McAfee WebAdvisor is a legitimate McAfee product, but scammers can imitate its name and appearance. Microsoft’s guidance on persistent McAfee-looking pop-ups also distinguishes browser notifications from installed software. Check the notification sender or installed application—not the logo or alarming wording—to judge the source.
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Remove suspicious website notifications
This is often the least disruptive fix when the alert identifies Chrome or Edge as its sender. Remove only sites you do not recognize or no longer trust. The exact menu labels can vary slightly with browser versions and language settings.
Google Chrome
- Open Chrome and select More ⋮ → Settings.
- Go to Privacy and security → Site Settings → Notifications.
- Under allowed sites, block or remove suspicious domains. Pay special attention to unfamiliar names that appeared around the time the alerts began.
- Return to Site Settings and review Pop-ups and redirects; block any unwanted sites there too.
These shortcuts open the relevant settings in desktop Chrome: chrome://settings/content/notifications and chrome://settings/content/popups. Google’s Chrome notification help explains how to change site permissions.
Microsoft Edge
- Open Edge and select Settings and more … → Settings.
- Go to Cookies and site permissions → Notifications.
- Under Allow, remove or block suspicious sites.
- Review Pop-ups and redirects under Cookies and site permissions and block unwanted domains.
You can also enter edge://settings/content/notifications in Edge’s address bar. Menu wording may differ by Edge version.
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Firefox
- Open Settings → Privacy & Security.
- Under Permissions, find Notifications and select Settings.
- Remove or block sites you do not trust.
If you use more than one browser profile, check the profile where the alert appeared. A permission removed from one profile may remain in another.
Check for a WebAdvisor browser extension
A browser notification permission and a WebAdvisor extension are separate things. Inspect every browser you use, including one you rarely open:
- Chrome: enter
chrome://extensionsin the address bar. - Edge: enter
edge://extensions. - Firefox: open Add-ons and themes → Extensions.
If you do not want it, remove an extension named McAfee WebAdvisor or WebAdvisor. Also review unfamiliar extensions added when the problem began. Avoid removing browser, Windows, or hardware components just because their names are unfamiliar. Removing an extension does not necessarily uninstall a separate Windows application, and uninstalling an app may not remove an extension from every browser.
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Uninstall WebAdvisor from Windows if you don’t want it
WebAdvisor may be installed separately from other McAfee products. If it appears in Windows, remove it through the normal app settings rather than deleting its folders manually.
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- Open Settings → Apps → Installed apps.
- Search for WebAdvisor, McAfee WebAdvisor, and, if relevant, other McAfee entries.
- Select the unwanted item, choose Uninstall, and follow the prompts.
- Restart Windows, then check your browsers’ extensions again.
Older Windows versions
- Open Control Panel → Programs → Programs and Features.
- Select WebAdvisor by McAfee and choose Uninstall.
- Restart the computer.
If the uninstaller fails, note the exact error. McAfee provides official WebAdvisor removal instructions. Do not start by deleting program folders or registry entries; removing the wrong item can cause problems.
Use MCPR only for leftover McAfee components
If you have already uninstalled McAfee but its components remain, restart first and recheck Installed apps and browser extensions. If McAfee software still will not uninstall cleanly, McAfee’s official MCPR consumer removal tool is intended for cleaning up McAfee products; restart after using it. Download it only from McAfee’s site.
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MCPR is not a general malware remover and is not the right first step for a browser notification scam. Microsoft’s WebAdvisor uninstall guidance points users to McAfee’s removal instructions and cleanup tool for the relevant cases.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When to scan Windows
If notifications continue after you remove site permissions and unwanted extensions—or appear with browsers closed—check for a Windows app or unwanted software. A scan is especially sensible if you also see unknown installed programs, repeated redirects, changed browser settings, disabled security tools, or other unexpected behavior.
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- Run a Full scan.
- If the problem persists, consider Microsoft Defender Offline scan or Microsoft Safety Scanner.
- Restart and see whether the symptoms return.
A clean scan does not rule out a browser notification permission: a site permission is a browser setting, not necessarily malware. Nor does one clean scan explain every unwanted setting or application. Microsoft’s troubleshooting discussion recommends using Windows security tools when pop-ups persist or are accompanied by broader signs of infection. You do not need to buy antivirus just to remove a site’s notification permission.
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- SECURE CONNECTIONS – Just a few easy clicks, and we'll automatically protect your info on public Wi‑Fi, every time you connect.
- GUIDED ACTION – Know what matters and what to do next. Clear alerts and simple guidance make it easy to take action.
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If your search engine or homepage changed
A changed search engine or startup page does not, by itself, prove infection. It may reflect a WebAdvisor search setting, a browser extension, an unwanted application, or a hijacker. After removing anything unwanted, review the browser’s Search engine and On startup settings and restore the choices you intended. If changes keep returning, check installed apps and scan Windows rather than repeatedly changing settings alone.
If the pop-up survives these steps
- Identify its sender: note the app or browser name shown in the notification and whether a browser was open.
- Check notification permissions and extensions in every browser and profile you use.
- Review Settings → Apps → Installed apps and Settings → Apps → Startup for unfamiliar items. Disable a suspicious Startup entry while you investigate; do not delete its files.
- If the browser itself has unwanted settings, consider its reset option after recording settings you need. A reset can change startup and search settings, disable extensions, clear some site permissions, and sign you out of websites. It may not remove a Windows application or scheduled task.
- If the pop-up affects multiple browsers or returns after a restart, run the Windows scans above. Avoid registry cleaners and removal tools advertised by the pop-up.
Clean scans combined with a returning notification can still point to a site permission in a second profile, a browser running in the background, or a legitimate app’s notification setting. Identify the sender before attempting advanced removal.
Quick Recap
If you shared payment details, a password, or remote access
- If you entered card or bank details, contact your bank or card issuer promptly and review transactions.
- Change any password you entered, and any reused password, from a trusted device. Enable multifactor authentication where available.
- Review sign-in activity for email, banking, and other affected accounts.
- If you installed remote-access software or let someone connect, disconnect the device from the internet if you suspect active access, remove the software, and seek trusted technical help.
- Keep screenshots and transaction details in case you need to report the incident.
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