Letenhankinbu.info ads: what it is and how to remove it
Letenhankinbu.info is considered to be bogus advertising content that is a sign of an adware infection. Deceptive marketing techniques are used to promote such potentially unwanted apps.
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.
Automatic
Get a free scan and check if your PC is infected.
Fortect finds malware, unwanted programs and the Windows damage they leave behind, and repairs it in one pass.
If redirects to letenhankinbu.info keep coming back, a free scan can check extensions, programs and browser settings in one pass.
Do it yourself · free Remove Letenhankinbu.info ads yourself 4 steps, about 12 minutes, no software needed.
Start the steps
Letenhankinbu.info ads: summary
| Name | Letenhankinbu.info |
|---|---|
| Type | Adware |
| Effect on performance | Slows down computer speed because of frequent advertising |
| Revenue gaining | Advertising allows gaining income from clicks on posts. Also, browsing data collecting brings benefits once the information is shared with third-parties |
| Possible danger | Redirects might take to malware-laden websites |
| Infection signs | Infected browsers, redirecting and advertising, decreased browser and computer speed |
| 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 11 more facts
| Appearance | Suspicious content might be overcome on third-party pages and in software bundles |
|---|---|
| Detection names | No Microsoft detection name is known |
| Distribution | Not recorded in the old report |
| Damage | Not recorded in the old report |
| Symptoms | Redirects to an unknown domain |
| Evidence | 4 write-ups by security sites; details still limited |
| Domains | letenhankinbu.info |
| Ads shown as | Redirects through ad pages |
| Browsers | Chrome, Edge and Firefox |
| First seen | 29 June 2021 |
| Facts checked | 6 October 2026 |
Is Letenhankinbu.info ads dangerous?
From our report of Jun 2021 · not reviewed since
Letenhankinbu.info is considered adware due to the deceptive marketing techniques it promotes
Letenhankinbu.info is considered to be bogus advertising content that is a sign of an adware infection.
Deceptive marketing techniques are used to promote such potentially unwanted apps. Once the "Confirm Notifications" white window appears in the upper left corner of your browser app, be careful and do not accidentally click on the "Allow" button, as pressing it will relate to unwanted advertising activities during your browsing sessions.
Adware intrusion truly hardens browsing as the user's computer or phone screen becomes overloaded by promotive posts that start "eating" computer resources and decrease operating speed. Only removing the cause will restore your web browsers and machine's optimization as it was before the infection took place and performed unpleasant changes/activities.
This adware-based application has got the name of a virus because stealth installation is one of the main techniques that potential threats use. They are able to access the computer systems of those users who lack attention and accidentally let the potentially unwanted program itself during installations of free software.
Letenhankinbu.info pop-up ads might be a way to promote some computer software products that are not claimed to be effective tools. Different types of system optimizers and registry cleaners appear on machines when a user gets interested in the offers that are provided by advertising posts. This might lead to money losses that were not necessary at all.
The main income source for this PUP's developers is the cost-per-click method which is promoted by displaying a large number of advertisements that look beneficial and almost force users to click on them. The second revenue-gaining technique for the creators is via browsing-related information that contains search queries, IPs, pages visited.
The danger level of Letenhankinbu.info is not as high as the program itself is not considered to be dangerous. However, this does not mean that harm to your system cannot be done indirectly. Malicious redirects might be the cause of bogus installations of malware such as trojans, spyware, or ransomware on your computer system.
Therefore adware removal is the best thing you can do once infected with the adware program. This process can be completed with the help of specific computer software such as or . Of course, you can feel free to use any other tool of your choice. Just make sure that all suspicious content is eliminated at once and there are no rogue processes left active.
Once you remove Letenhankinbu.info, proceed with gaining knowledge in the adware prevention sphere. Protecting yourself from potentially unwanted applications such as adware will increase the performance, speed of your computer and ensure safer computing work.
Also, please don't forget to frequently use time-tested system optimizations tools like the . It will ensure that all system files and settings are in order, automatically update your system files, and delete tracking cookies stored by deceptive websites that you've been redirected to by adware.
From our report of Jun 2021 · not reviewed since
More from our earlier report on Letenhankinbu.info
- Use reputable anti-malware to complete the adware elimination
- software is capable of fixing virus-caused damage
Check your browser and PC
- Address:
letenhankinbu.info
How to remove Letenhankinbu.info ads
How to remove the Letenhankinbu.info extension
Do the browser steps in every browser and profile on the PC, then check Windows for the program that installed the extension.
Step 1: Remove extensions you did not add
In Chrome open
chrome://extensions, in Edgeedge://extensions, and in Firefox the menu > Extensions and themes.Remove every extension you do not remember adding, especially search, new tab, coupon, PDF, weather or video downloader add-ons. Check every browser and every profile, because each keeps its own list.
If an extension has no Remove button or comes back, a browser policy holds it (see "Managed by your organization" in the procedure below). The pages are the same on Windows 11 and Windows 10.
Chrome on Windows 11: More > Extensions > Manage extensions. Full procedure with screenshots: Remove a browser extension
Step 2: Uninstall programs you did not mean to install
Letenhankinbu.info rarely comes alone: it is usually installed by, or together with, a free program. In Windows 11 open Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and sort by install date.
Uninstall every entry from the day the trouble began that you did not install on purpose, for example a download manager, a converter or a browser you never chose.
Keep drivers and entries from Microsoft, Intel, AMD, NVIDIA or your PC's maker unless you are sure.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 3: Reset the browser
A reset removes what the steps above could miss:
- changed start pages
- site permissions
- hidden settings
In Chrome open Settings > Reset settings > Restore settings to their original defaults; in Edge Settings > Reset settings; in Firefox Help > More troubleshooting information > Refresh Firefox.
Tip: Bookmarks and saved passwords stay, while extensions are turned off and the search engine and start page return to the defaults.
Reset every browser on the PC, including Edge, which Windows 11 and Windows 10 always have.
Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 4: Scan the PC, then run the offline scan
A scan finds the parts of Letenhankinbu.info 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
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
Terminate the adware from your Windows machine. Achieve such goal by disabling all adware-related processes in the Task Manager section:
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
If the adware application has planted suspicious extensions in Google Chrome, you can easily get rid of them by using this instructing guide:
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.
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 Jun 2021 · not reviewed since
You can easily prevent adware if you know where it might be hiding
Knowledge is the key to succeeding in computer safety.
We are he to provide you with some basic knowledge on sources where adware might be located and how to avoid these sneaky cyber threats. The most common location of adware is software bundles. Suspicious content is easy to hide in free downloads of third-party apps as they do lack protection.
Even though such activity is common, there are some ways to avoid it. First of all, choose the right configuration mode for your downloads and installation. Be aware of functions that provide "Quick installation," as those usually are the opens that let rogue content slip through.
Another source that might hide adware is third-party networks. Such websites are known as peer-to-peer, which let various potentially dangerous content escape detection. Here you might get infected even with ransomware or other malware. Stay away as far as possible from these bogus pages, and make sure to immediately close all suspicious content that you accidentally access on the Internet.
From our report of Jun 2021 · not reviewed since
Termination steps for Letenhankinbu.info adware and its "helper components"
Be prepared to remove Letenhankinbu.info adware from your Windows or Mac machine.
Ensure that you have the right tools for this process or carefully view the entire step-by-step guide, which presents instructions on eliminating potentially unwanted components from different computer systems and web browsers.
The removal can be carried out in a faster way if you install a reputable anti-malware program on your system. These tools speed up the elimination process and ensure that suspicious content is removed from various directions such as Task Manager, Registry, other system locations, and web browser applications.
Once Letenhankinbu.info virus is gone, ensure that your computer is protected with antivirus software. According to computer experts from Virusai.lt website, antimalware and antivirus programs increase the machine's protection slightly as they can identify objects that a human might miss or pass by accident.
Questions about Letenhankinbu.info ads
letenhankinbu.info opens when I click links. What causes it?
When every click leads to letenhankinbu.info first, an extension or a script on the page is rewriting the links. If it happens only on one site, that site uses aggressive ads; close it and use another source. If it happens everywhere, open the browser in a private window, where extensions are normally off, and try again.
No redirect in the private window means one of your extensions is responsible: remove the ones you do not know. A redirect in the private window too means the cause is outside the extensions, such as a notification permission, a changed search setting or a program installed on the PC. The removal steps in this guide cover each of those.
Did letenhankinbu.info install a virus on my PC?
Very unlikely, unless you downloaded and opened something from the pages it led to. Redirect domains such as letenhankinbu.info 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.
Why does Letenhankinbu.info show me ads?
Because that is its whole purpose. Letenhankinbu.info is an adware extension, and its operators are paid for every ad it displays and every click it gets. In this case the ads take the form of redirects through ad pages.
They are chosen by ad networks that accept almost any advertiser, which is why so many look like warnings or prizes. The ads are not a sign that your PC is broken or infected with something worse; they are a sign that something on it, or in the browser, has permission to advertise. Removing that permission or program stops them.
Do I have to clean every browser?
Yes, if you use more than one. We saw Letenhankinbu.info in Chrome, Edge and Firefox, and each browser keeps its own extensions, notification permissions and settings. Chrome and Edge share the same extension format, so one installer can add the same adware to both, while Firefox has its own add-ons.
Check every browser on the PC, including ones you rarely open. If you sync a browser with an account, clean it while signed in, so that the removal reaches your other computers rather than the adware returning from them.
How do I know the ads come from Letenhankinbu.info?
Look for redirects to letenhankinbu.info. That is the trace Letenhankinbu.info leaves, and it shows up as redirects through ad pages. Ads that appear on every site, including ones that never carried ads before, point to something on your PC or in the browser rather than to the sites themselves.
A quick test is a private window, where extensions are off by default: if the ads disappear there, an extension is responsible. If they appear even with the browser closed, the source is a notification permission or a program in Windows.
An ad showed a phone number and I called it. What now?
The number belongs to scammers, not to Microsoft or an antivirus company. If you only talked, hang up and do not call back. If you let them connect to the PC, disconnect it from the internet, uninstall the remote access program they used, such as AnyDesk, TeamViewer, ScreenConnect or UltraViewer, and run a full and offline scan.
If you paid or gave bank details, call your bank at once on the number printed on your card. Change any passwords you typed while they were connected, and report the call.
I clicked on one of the ads. Am I infected?
Probably not. Clicking an ad usually only opens a page, and a page cannot install programs on an up-to-date Windows PC without your help.
You are at risk only if you then downloaded and ran a file, allowed notifications, entered card or login details, or called a phone number shown on the page. Delete any download and run a full and offline scan.
Change passwords you typed, from a clean device. Call your bank if you gave card details. If you called a number or allowed remote access, see the next question.
Why didn't my antivirus catch Letenhankinbu.info?
Many security products do not block adware or notification sites by default, because users often agreed to them, even through a misleading prompt. Notification spam installs nothing at all, so there is no file to detect.
In Windows 11 you can make Microsoft Defender block potentially unwanted apps: open Windows Security > App & browser control > Reputation-based protection settings and turn on Potentially unwanted app blocking. If notifications caused the pop-ups, no scanner will report them; the fix is in the browser's site settings.
Can adware slow down my PC?
Yes. Adware runs in the background, loads ad scripts, opens extra tabs and contacts its servers, all of which use processor time, memory and bandwidth. Ad-heavy extensions also slow down every page, because they inspect and change it before you see it.
The effect is strongest on older PCs and when several adware programs arrived together. After removal, restart the PC and check Task Manager for anything still using a lot of resources that you do not recognise. Speed usually returns to normal once the ads stop.
Will Fortect remove Letenhankinbu.info?
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 Letenhankinbu.info, 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: Adware (read October 6, 2026)
- Computer world: What's a Peer-to-Peer (P2P) Network? (read October 6, 2026)
- Virusai: Virusai.lt (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)