A.targetserving.com ads: what it is and how to remove it
A.targetserving.com is an ad server associated with various adware programs . It is being used as a distributor of third-party ads, so if you accidentally infect your computer with a suspicious ad-supported program, it is likely that its ads soon start to bother you during your browsing sessions.
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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A.targetserving.com ads: summary
| Distribution | Software bundles, fake Flash Player updates |
|---|---|
| Damage | PUP installation, malware infections, privacy issues, monetary losses |
| name | A.targetserving.com |
| Type | Adware |
| Symptoms | More than usual ads on your frequently visited pages, some of them covering the whole browser window; redirects to questionable domains |
| 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 8 more facts
| Name | A.targetserving.com |
|---|---|
| Evidence | 6 write-ups by security sites; details still limited |
| Domains | a.targetserving.com |
| Ads shown as | Desktop notifications |
| Browsers | Chrome, Edge and Firefox |
| Installed on the PC | Nothing; a browser notification permission only |
| First seen | 4 May 2017 |
| Facts checked | 7 October 2026 |
Is A.targetserving.com ads dangerous?
From our report of May 2017 · not reviewed since
Avoid adware programs that cause redirects to A.targetserving.com
A.targetserving.com is an ad server associated with various adware programs .
It is being used as a distributor of third-party ads, so if you accidentally infect your computer with a suspicious ad-supported program, it is likely that its ads soon start to bother you during your browsing sessions.
These ads unexpectedly pop up on your screen when you are simply browsing through the world wide web, even legitimate websites. The ad-supported program that serves these commercial offers firstly triggers a new browser window or a tab, then causes a redirect to a particular URL from this ad server, and then a final A.targetserving.com redirect lands the user to a predetermined third-party website that promotes something(service, products, etc.).
You might come across websites that offer certain products, such as weight-loss pills, software, or asks to participate in questionable surveys . Constant redirections to various websites cause annoyance but at the same time slow down your computer system.
We doubt that you want such problems in your life because we believe that all of us have plenty of them already; therefore, we have prepared a quick guide on how to identify and remove the virus so that these constantly emerging ads would stop bothering you.
Usually, ad networks function as a place where third-party advertisers can place their ads so that they would be shown on particular websites. Sadly, only some ad networks actually dedicate time to endorse content shared on advertisers' sites. You should be extra careful when around ads that pop up on your screen all of a sudden.
These ads are more likely to take you to untrustworthy Internet web pages, so we suggest you stay away from them. To increase the overall computer's performance, you will have to find the program that repetitiously connects to the described ad network to display advertisements to you.
From our report of May 2017 · not reviewed since
More from our earlier report on A.targetserving.com
- Remove any suspicious apps or entires from your device by scanning it with a reliable anti-malware program
- To recover your overall system health that could have been diminished by the infection, use the system diagnostics software
How A.targetserving.com ads got into your browser
From our report of May 2017 · not reviewed since
Adware programs, same as typical potentially unwanted programs, are proliferated employing the software bundling method .
It helps to attach one program to another by inserting agreements to install it to the main program's installer. These agreements are pre-selected and added to Default or Standard installation settings. In order to keep unwanted programs away from your PC, you should always pick Custom or Advanced settings.
These settings allow users to decompose software packages by choosing components to install and ones to reject. We suggest you deselect all additional programs that have nothing in common with your chosen software. After performing this slight modification, you can install your desired program without worries.
Check your browser and PC
- Address:
a.targetserving.com
How to remove A.targetserving.com ads
How to stop A.targetserving.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 a.targetserving.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
a.targetserving.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 a.targetserving.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
Instructions for Google Chrome
Remove from Google Chrome
Uninstall Chrome extensions that you don't use or simply if you find them suspicious. Carefully look through the list of installed ones and delete (not disable!) shady ones.
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.
Step 1: Remove a.targetserving.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. Removea.targetserving.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
Instructions for Microsoft Edge
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.
Step 1: Remove a.targetserving.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
a.targetserving.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
Instructions for Mozilla Firefox
Remove from Mozilla Firefox (FF)
If Firefox was compromised, complete the steps we present below to block all of the annoying ads from this ad network for good.
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.
Our tested steps are for Windows 11 and 10. For Safari (Mac), use the instructions below.
Instructions for Safari (Mac)
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.
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.
Remove A.targetserving.com ads with a few simple steps
If you are ready to block all ads caused by the article's culprit, please carefully study the tutorial we provide below.
We did our best trying to explain how to remove A.targetserving.com virus, and we hope that you will find this tutorial useful.
When your system is virus-free, you should employ a powerful system diagnostics tool to fix all system-related issues. However, if you have any more questions regarding the adware program that runs on your computer system, waste no time and submit a question to experienced 2-Spyware experts.
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.
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.
Questions about A.targetserving.com ads
How do I stop notifications from a.targetserving.com?
Remove its permission in the browser. The bottom line of each notification names the browser, so open that browser's notification settings and look under Allowed. Remove a.targetserving.com and any other site you do not recognise.
In Chrome and Edge this is under the site settings for notifications; in Firefox it is under Settings, Permissions and data, Notifications. Do this in every browser profile, because each one keeps its own list.
Restart the browser and wait a few minutes. If a message still arrives, read its bottom line again: the sending address can differ from the site you remember, and that is the entry still left in the list.
The a.targetserving.com notification said my PC is infected. Is it true?
No. Notifications from a.targetserving.com are adverts written to look like system messages. A website cannot scan your files, so it has no way to know whether your PC is infected; it shows the same warning to everyone who allowed its notifications. Real Windows Security messages name Windows Security in the bottom line, not a browser and a website.
If you want to be sure, open Windows Security from the Start menu and run a quick scan there. Then remove a.targetserving.com from the browser's notification settings so the fake warnings stop arriving. Do not call any number or buy anything the notification or its page suggests.
What is A.targetserving.com?
A.targetserving.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.
A.targetserving.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 a.targetserving.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 a.targetserving.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 a.targetserving.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 a.targetserving.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 a.targetserving.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 A.targetserving.com?
Compare them with the details in the table above. A.targetserving.com produces desktop notifications, and the clearest sign of it is notifications from a.targetserving.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.
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.
Can I turn off the pop-ups in Windows settings instead?
You can hide them, but that is not the fix. In Windows 11, Settings > System > Notifications lets you switch off notifications for a whole browser, which silences the spam together with every useful notification from that browser.
The site keeps its permission and can still send messages when you switch them back on. It is better to remove the specific site in the browser's own notification settings and block new requests. That stops the messages at the source and leaves the rest of your notifications working.
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.
Will Fortect remove A.targetserving.com?
No program removes A.targetserving.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
- VirusActivity Blog: DNS Unlocker virus renewed its activities (read October 7, 2026)
- wikiHow: How to Avoid Survey Scams (read October 7, 2026)
- 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)