Ro01.biz ads: what it is and how to remove it
Ro01.biz is a push notification virus site that tries to trick you into subscribing to its notifications. It can deceive you into pushing the Allow button by showing various prompts, e.g., to prove that you're not a robot, watch a video, enter the site, continue downloading a file, confirm that you're over 18 years old, etc.
Facts checked October 6, 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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Ro01.biz ads: summary
| Distribution | Fake Flash Player updates, software bundling, deceptive ads |
|---|---|
| Damage | Other PUP installation, malware[1] infections, financial losses, privacy issues |
| name | Ro01.biz |
| Type | PUP, adware, redirect virus |
| IP address | 128.199.45.147 |
| Other site variations | Ro02.biz; Ro03.biz; Ro04.biz; Ro05.biz; Ro06.biz |
| 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 10 more facts
| Purpose | Trick people into allowing notification which enables it to deliver ads directly to your desktop or screen |
|---|---|
| Symptoms | Redirects to unknown sites with dangerous contents, slower browsing speed, irritating ads showing up |
| Detection names | No Microsoft detection name is known |
| Name | Ro01.biz |
| Evidence | 4 write-ups by security sites; details still limited |
| Domains | ro01.biz |
| Ads shown as | Redirects through ad pages |
| Browsers | Chrome, Edge and Firefox |
| First seen | 17 March 2021 |
| Facts checked | 6 October 2026 |
Is Ro01.biz ads dangerous?
From our report of Mar 2021 · not reviewed since
Pay attention when installing new software to avert PUP infections
Potentially unwanted programs such as browser hijackers, unnecessary toolbars, adware, and alike can sometimes be downloaded from official browser web stores or official pages.
But more frequently, they're installed unknowingly by rushing through new software installations.
There's a technique called software bundling and PUP developers widely use it. Software bundles contain installers for two and more apps, and the trick is that all of them are preselected for installation. Thus as soon as you choose the Recommended, Standard, or Quick mode, all of them are installed.
These bundles are usually downloaded from third-party software vendors, but legitimate app developers started to use this technique also. So the only way to protect your machine from a PUP infection is to pick the Advanced/Custom mode and deselect all additional, unwanted apps from installation.
From our report of Mar 2021 · not reviewed since
More from our earlier report on Ro01.biz
- If an infection alters system files, that will result in slower performance, BSoDs, freezing, etc.
How Ro01.biz ads got into your browser
From our report of Mar 2021 · not reviewed since
Ro01.biz is a push notification virus site that tries to trick you into subscribing to its notifications.
It can deceive you into pushing the Allow button by showing various prompts, e.g., to prove that you're not a robot, watch a video, enter the site, continue downloading a file, confirm that you're over 18 years old, etc.
As soon as you accept Ro01.biz notifications, you will be redirected to an affiliated site, and ads will start popping up directly on your computer desktop or phone screen. Shady website's prompts and sites you will be visiting depend on your geolocation.
If you're redirected to this or similar push notification virus sites, you have adware installed on your device. These PUPs gain revenue from advertising various portals, with some of them being malicious.
Ro01.biz is one of many shady sites bearing almost identical names. The other variations differ only by one numeral at the end, e.g., Ro02.biz; Ro03.biz; Ro04.biz, etc. If you ever land on a site like this, please don't accept their push notifications, as you will be bombarded with ads.
When Ro01.biz virus is in your phone or computer system, you will suffer from two things - deceptive ads and sudden redirects. Its ads will come in the form of notifications and will pop-up constantly on the top-right or bottom-right corner of your desktop or directly on your cell phone screen.
Apart from being annoying, Ro01.biz ads pose threats, as in most cases, they have nothing in common with the websites you'll end up on. An ad for an amazing deal on a new laptop, or a software sale, could redirect you to websites with gambling, fake updates, potentially unwanted programs, malware, porn, gaming, etc.
And that's where it gets risky as these websites might try to push other PUPs, try to draw out private info (banking credentials, SSNs, etc.), lure you into gambling, install malware, and so on. Furthermore, through Ro01.biz redirect, you might be forced to visit such sites, as new tabs with them could open out of the blue.
And last but not least, if you didn't type in Ro01.biz address manually, in other words, if you didn't voluntarily visit this site, then there's a very good chance that you have an adware infection. It can also cause redirects, display misleading ads, and more.
According to many user reviews, the best free anti-malware software for Ro01.biz removal is either or . The AV engine will do the rest.
Once you remove Ro01.biz and any adware that was causing redirects, you have to think about your device's system's health. Messy Registry, an abundance of tracking cookies, and other system issues might result in sluggish performance, crashes, etc. Experts highly recommend fixing these issues with the all-in-one system optimizer.
Check your browser and PC
- Address:
ro01.biz
How to remove Ro01.biz ads
How to stop the Ro01.biz redirects
Work in this order and test a few links after each step, so you know which one was the cause.
Step 1: Check the browser's extensions
A browser that keeps landing on
ro01.bizby itself usually has an add-on doing it. Open the extension list (chrome://extensions, edge://extensions, or Extensions and themes in the Firefox menu) and remove anything you do not remember installing.Coupon, PDF, new tab, search and video downloader add-ons are the usual suspects. Do this in every browser on the Windows 11 or Windows 10 PC.
Chrome on Windows 11: More > Extensions > Manage extensions. Full procedure with screenshots: Remove a browser extension
Step 2: Reset the browser if the redirects continue
When
ro01.bizkeeps opening after the extensions are cleaned, reset the browser to its defaults. Chrome: Settings > Reset settings > Restore settings to their original defaults; Edge: Settings > Reset settings; Firefox: Help > More troubleshooting information > Refresh Firefox.A reset keeps bookmarks and saved passwords but clears site permissions, the start page and the search engine.
If every browser still redirects afterwards, the cause is a program in Windows 11 or Windows 10: check Settings > Apps > Installed apps for anything you did not install.
Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 3: 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
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Uninstall from Windows
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.
Uninstall from Windows 7/XP:
- Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.
Remove the unwanted program:
- In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
- If User Account Control appears, click Yes to confirm, then complete the removal.
Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- 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 suspicious extensions related to the unwanted program by clicking Remove.
Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.
Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.
Remove from Microsoft Edge
Delete unwanted extensions from MS Edge:
- 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 Remove.
Clear cookies and other browser data:
- Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
- Under Clear browsing data, pick Choose what to clear.
- Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.
Restore new tab and homepage settings:
- Click the menu icon and choose Settings.
- Then find On startup section.
- Click Remove next to any suspicious startup page.
Reset MS Edge if the above steps did not work:
- Press on Ctrl + Shift + Esc to open Task Manager.
- Click on More details arrow at the bottom of the window.
- Select Details tab.
- Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.
Delete extensions from MS Edge (Chromium):
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.
Clear cache and site data:
- Click on Menu and go to Settings.
- Select Privacy, search and services.
- Under Clear browsing data, pick Choose what to clear.
- Under Time range, pick All time.
- Select Clear now.
Reset Chromium-based MS Edge:
- Click on Menu and select Settings.
- On the left side, pick Reset settings.
- Select Restore settings to their default values.
- Confirm with Reset.
- This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.
Remove from Mozilla Firefox (FF)
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.
Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.
Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.
- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.
Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.
Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.
Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.
Delete from macOS
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).
Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.
- Finally, empty the Trash to permanently remove the leftovers.
Uninstall from Android
Uninstall unwanted programs from Android device:
- Go to Settings -> Apps/Applications.
- Expand the full list of the installed apps.
- Scroll through the list and tap on a suspicious application once.
- Tap on it and select Uninstall.
- If the Uninstall option is unavailable, the app may require additional permissions to be revoked first.
- Reboot the device.
Clear storage and cache for Google Chrome or other apps::
- Go to Settings > Apps/Applications.
- Expand the full list of the installed apps.
- Tap on Chrome and select Storage & cache.
- Clear storage and clear cache of the app.
If you are seeing ads on top of other apps but are not sure what is causing it, perform the following steps:
- Go to Apps/Applications.
- Select Special App access.
- Tap on Display over other apps.
- Eliminate apps with these access rights enabled.
Stop browser notifications
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 Mar 2021 · not reviewed since
A quick tutorial to remove Ro01.biz virus from any infected devices
If you see deceptive ads as notifications or suffer from redirects to dubious sites, that means your computer or cell phone has Ro01.biz virus on it.
The same goes if you've clicked the Allow button on any other variations of this site. Although PUPs aren't as hazardous as malware, they can act as a gateway to it. That's why you should take action immediately.
Ro01.biz removal process is quite simple, but we're going to help you through it. First, open your security tool and update its virus database. When it has the latest signatures, perform a full system scan. Then eliminate any suspicious entries that the dependable anti-malware tool recommends.
Afterward, use our detailed guides below to remove Ro01.biz notifications from your favorite browser. And lastly, you should delete tracking cookies and restore any altered system files. To do that automatically, use a proper system tune-up tool.
Questions about Ro01.biz ads
How do I stop ro01.biz from opening?
Find and remove whatever opens it. Start with the browser's extensions page and remove anything you do not remember adding. Next, open the notification settings and take away permission from sites you do not recognise.
Then check Settings > Apps > Installed apps for programs added around the day the redirects began, and uninstall those. Restart the browser and test a few links after each step.
If ro01.biz still appears, reset the browser, which restores the default search engine, start page and permissions without deleting bookmarks or saved passwords. Redirects that survive a reset in every browser point to a program in Windows, and a full scan is the next step.
Did ro01.biz install a virus on my PC?
Very unlikely, unless you downloaded and opened something from the pages it led to. Redirect domains such as ro01.biz sell your visit to advertisers; they do not need to install anything to make money.
What can be installed is the thing that causes the redirects in the first place, such as an extension or an ad-supported program that came with free software. That is why the checks in this guide look at extensions, notification permissions and Installed apps.
A full scan with Microsoft Defender afterwards gives you a clear answer about the rest of the PC. If the scan is clean and the redirects stop after removing the cause, you are done.
What is Ro01.biz?
Ro01.biz is an ad redirect domain, a kind of adware. It earns money by showing redirects through ad pages, 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.
Ro01.biz 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 ro01.biz 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 ro01.biz, 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 ro01.biz never appears there, an extension is the likely cause. The plan above covers each case.
Which browsers does Ro01.biz affect?
In the cases we checked, Ro01.biz showed up in Chrome, Edge and Firefox. That does not rule out others on your PC, since adware installers often target every browser they find, and permissions and extensions sync across computers signed in to the same browser account.
Open each browser you have, go to its extensions page and its notification settings, and remove anything you do not recognise. Profiles count separately: Chrome and Edge can each hold several, and each one needs checking on its own.
Are the pop-ups I see really from Ro01.biz?
Compare them with the details in the table above. Ro01.biz produces redirects through ad pages, and the clearest sign of it is redirects to ro01.biz. 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.
Why is my browser so slow since the ads started?
Each page now does extra work. An adware extension reads the page, decides where to put ads, loads them from ad servers and reports your visit, and that happens on every tab. Ad-supported programs add their own background activity.
Removing the extension or program usually makes the browser fast again at once. If it stays slow, open the browser's own task manager with Shift+Esc in Chrome or Edge and look for extensions using a lot of memory or processor time.
Will Fortect remove Ro01.biz?
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 Ro01.biz, 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
- Wikipedia: Software (read October 6, 2026)
- Google Chrome Help: Use notifications to get alerts (no longer online) (read October 6, 2026)
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)
- Microsoft Learn: How Microsoft names malware (read October 6, 2026)