Ads by Neon Great: what it is and how to remove it

Neon Great (also known as NeonGreat) is a potentially unwanted program which can show up on your computer without your permission. According to PC security experts, it belongs to "adware" category.

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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Ads by Neon Great: neon great
Ads by Neon Great as our 2016 report showed it.

Ads by Neon Great: summary

Detection namesNo Microsoft detection name is known
DistributionNot recorded in the old report
DamageNot recorded in the old report
NameAds by Neon Great
TypeAd-supported program
SymptomsAn unknown program in Installed apps
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 4 more facts
EvidenceOne write-up by a security site; details still limited
ProgramAds by Neon Great
First seen21 September 2016
Facts checked6 October 2026

Is Ads by Neon Great dangerous?

From our report of Sep 2016 · not reviewed since

Can I trust Neon Great?

Neon Great (also known as NeonGreat) is a potentially unwanted program which can show up on your computer without your permission.

According to PC security experts, it belongs to "adware" category. This term can be translated to "ad-supported" and it means that the program is used for showing commercial content and generating income to its owners. The more you keep Neon Great virus on your computer, the more you see that it seeks to earn the money instead of helping you save it while you are shopping online.

Beware that this unwanted program is capable of causing hundreds of annoying pop-up ads that show up in a form of banner ads, in-text links, pop-up ads and similar notifications. In addition, you can notice continuous redirects to unknown websites, slow downs and other problems that are typically initiated on each of your web browsers.

No, don't think that this application is capable of stealing your bank data and other financial information! This program is not used for initiating such dangerous activities! Nevertheless, according to PC security experts, you should remove Neon Great from your computer before it redirects you to some very suspicious and unknown website.

If you have been suffering from commercial pop-up ads for a while, you should double check your PC for this application because it might be that it is hiding in your computer. Neon Great and other adwares or browser hijackers are mostly spread using bundling, which can't be imagined without freeware and shareware.

Here, this program is hidden in 'optional' components that are usually installed on the system without people's knowledge. If you have already been tricked into downloading this program to your PC, you should run a full system scan with and remove it from the system. Otherwise, you may notice that each of your search sessions is interrupted.

Ads by Neon Great: neon great
Ads by Neon Great in our 2016 report.

From our report of Sep 2016 · not reviewed since

How can this PUP infiltrate my computer?

We think that almost every PC user knows how viruses are spread around.

You should try to be very careful when visiting illegal websites, dealing with spam or clicking on questionable pop-up ads when trying to prevent infiltration of trojans, rogues and other threats. Nevertheless, have you ever heard how can you avoid adwares and browser hijackers?

Of course, updated anti-spyware could help you to do so. You should also know that you should always double check programs before downloading them to your machine. Even the most reputable program may try to install a questionable browser add-on, extension or plugin on your computer.

For avoiding this, you should check Privacy Policy, End user's license agreement and other information. In addition, make sure you select Custom or Advanced installation option and uncheck all checkboxes saying that you want to download Neon Great virus or similar program to your computer.

Please, try to avoid installation of optional components because hundreds of examples have revealed that they cause only issues for PC users.. If you think that this potentially unwanted program is already hiding in your PC, you have two options: you can try to deal with Neon Great redirects and annoying pop-up ads or simply remove it.

How to remove Ads by Neon Great

Uninstall first, then remove what stays behind, so the ads do not come back after a restart.

  1. Step 1: Uninstall Ads by Neon Great

    Ads by Neon Great is removed like any other program, from the list of installed apps. In Windows 11 that is Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and in both you can also use Control Panel > Programs and Features.

    Select Ads by Neon Great, click Uninstall and follow the uninstaller to the end. Then look at the entries just above and below it when the list is sorted by date: bundled programs install at the same minute.

    Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix

  2. Step 2: Remove it from startup

    Press Ctrl + Shift + Esc to open Task Manager and select Startup apps (Windows 11) or the Startup tab (Windows 10). Disable entries you do not recognise, especially ones with no publisher or with a name that copies a Windows component.

    Right-click an entry and choose Open file location to see where it runs from: programs in %AppData% or %Temp% deserve a closer look. Some entries are not listed there but in the registry Run keys, which the procedure below shows how to check.

    Full procedure with screenshots: Stop apps from opening at startup On uGetFix

  3. Step 3: Delete the folders left behind

    Uninstalling often leaves the program's folders, and some threats reinstall themselves from them.

    Press Windows + R, type %LocalAppData% and press Enter, then do the same for %AppData% and %ProgramData%, and look for folders named after Ads by Neon Great, its publisher or created on the day the problem started.

    Delete those folders, and check C:\Program Files and C:\Program Files (x86) too.

    If Windows says a file is in use, end it in Task Manager or delete the folder after a restart in Safe Mode. The folders are the same in Windows 11 and Windows 10.

    Full procedure with screenshots: Remove what malware leaves behind in Windows

  4. Step 4: 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 Settings page with the Reset settings section open
    Chrome on Windows 11: Settings > Reset settings.

    Full procedure with screenshots: Reset a browser and fix a hijacked search engine

  5. Step 5: Scan the PC, then run the offline scan

    A scan finds the parts of Ads by Neon Great 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 Security Scan options with Microsoft Defender Antivirus offline scan selected
    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:

  1. Type Control Panel into the Windows search box and open the result.
  2. Under Programs, select Uninstall a program.Uninstall from Windows 10/8

Uninstall from Windows 7/XP:

  1. Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
  2. In Control Panel, select Programs > Uninstall a program.Uninstall from Windows 7/XP

Remove the unwanted program:

  1. In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
  2. If User Account Control appears, click Yes to confirm, then complete the removal.Uninstall the unwanted program from Windows
Remove from Google Chrome

Delete malicious extensions from Google Chrome:

  1. Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
  2. In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.Remove extensions from Chrome

Clear cache and web data from Chrome:

  1. Click on Menu and pick Settings.
  2. Under Privacy and security, select Clear browsing data.
  3. Select Browsing history, Cookies and other site data, as well as Cached images and files.
  4. Click Clear data.Clear cache and web data from Chrome

Change your homepage:

  1. Click menu and choose Settings.
  2. Look for a suspicious site in the On startup section.
  3. 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:

  1. Click on Menu and select Settings.
  2. In the Settings, scroll down and click Advanced.
  3. Scroll down and locate Reset and clean up section.
  4. Now click Restore settings to their original defaults.
  5. Confirm with Reset settings.Reset Chrome 2
Remove from Microsoft Edge

Delete unwanted extensions from MS Edge:

  1. Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
  2. From the list, pick the extension and click on the Gear icon.
  3. Click Remove.Remove extensions from Edge

Clear cookies and other browser data:

  1. Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
  2. Under Clear browsing data, pick Choose what to clear.
  3. 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.Clear Edge browsing data

Restore new tab and homepage settings:

  1. Click the menu icon and choose Settings.
  2. Then find On startup section.
  3. Click Remove next to any suspicious startup page.

Reset MS Edge if the above steps did not work:

  1. Press on Ctrl + Shift + Esc to open Task Manager.
  2. Click on More details arrow at the bottom of the window.
  3. Select Details tab.
  4. 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.Reset MS Edge
Instructions for Chromium-based Edge

Delete extensions from MS Edge (Chromium):

  1. Open Edge and click select Settings > Extensions.
  2. Delete unwanted extensions by clicking Remove.Remove extensions from Chromium Edge

Clear cache and site data:

  1. Click on Menu and go to Settings.
  2. Select Privacy, search and services.
  3. Under Clear browsing data, pick Choose what to clear.
  4. Under Time range, pick All time.
  5. Select Clear now.Clear browser data from Chroum Edge

Reset Chromium-based MS Edge:

  1. Click on Menu and select Settings.
  2. On the left side, pick Reset settings.
  3. Select Restore settings to their default values.
  4. Confirm with Reset.
  5. This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.Reset Chromium Edge
Remove from Mozilla Firefox (FF)

Remove dangerous extensions:

  1. Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
  2. Select Add-ons.
  3. In here, select the unwanted extension and click Remove.Remove extensions from Firefox

Reset the homepage:

  1. Click three horizontal lines at the top right corner to open the menu.
  2. Choose Settings.
  3. Under Home, set your preferred homepage and new tab settings.

Clear cookies and site data:

  1. Click Menu and pick Settings.
  2. Go to Privacy & Security section.
  3. Scroll down to locate Cookies and Site Data.
  4. Click on Clear Data...
  5. Select Cookies and Site Data and Temporary cached files and pages, then click Clear.Clear cookies and site data from Firefox

Reset Mozilla Firefox

If clearing the browser as explained above did not help, reset Mozilla Firefox:

  1. Open Mozilla Firefox browser and click the Menu.
  2. Go to Help and then choose Troubleshooting Information.Reset Firefox 1
  3. Under Give Firefox a tune up section, click on Refresh Firefox...
  4. Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.Reset Firefox 2
Delete from Safari

Remove dangerous extensions:

  1. Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
  2. Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.Remove extensions from Safari

Clear history and website data:

  1. Click Safari in the menu and pick Clear History.
  2. Set Clear to all history and confirm with Clear History.Clear history from Safari

Reset Safari:

  1. Click Safari in the menu and select Preferences > Advanced.
  2. Enable Show Develop menu in menu bar.
  3. From the menu bar, click Develop and select Empty Caches.Reset Safari
Delete from macOS

Remove the unwanted application:

  1. From the menu bar, select Go > Applications.
  2. In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).Uninstall from Mac

Delete leftover files and folders:

  1. Select Go > Go to Folder.
  2. Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
  3. Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.Delete leftover files from Mac
  4. Finally, empty the Trash to permanently remove the leftovers.

Access your website securely from any location

When you work on the domain, site, blog, or different project that requires constant management, content creation, or coding, you may need to connect to the server and content management service more often. The best solution for creating a tighter network could be a dedicated/fixed IP address.

If you make your IP address static and set to your device, you can connect to the CMS from any location and do not create any additional issues for the server or network manager that needs to monitor connections and activities. VPN software providers like can help you with such settings and offer the option to control the online reputation and manage projects easily from any part of the world.

Recover files after data-affecting malware attacks

While much of the data can be accidentally deleted due to various reasons, malware is one of the main culprits that can cause loss of pictures, documents, videos, and other important files.

More serious malware infections lead to significant data loss when your documents, system files, and images get encrypted. In particular, ransomware is is a type of malware that focuses on such functions, so your files become useless without an ability to access them.

Even though there is little to no possibility to recover after file-locking threats, some applications have features for data recovery in the system. In some cases, can also help to recover at least some portion of your data after data-locking virus infection or general cyber infection.

From our report of Sep 2016 · not reviewed since

How to remove Neon Great virus?

If ads by Neon Great have been bothering you for a while, you should not waste your time.

As we have already said, this PUP can redirect you to malicious website or start tracking you in order to collect non-personal information. Such data is typically transferred to the developer of adware but there is no guarantee that he or she will not reveal it to third parties or even cyber criminals.

To prevent such danger, make sure you remove Neon Great from your computer with each of its components. For that, you can either install one of anti-spyware programs given below or follow our manual removal guide.

If you think that this option is better for you, make sure you follow every step attentively to be sure that Neon Great removal is finished and that you won't see this adware on your computer in the future.

Questions about Ads by Neon Great

What is Ads by Neon Great and why is it on my PC?

Ads by Neon Great is a program that was installed on the PC, most likely together with something else you downloaded. Free software sites and many installers add extra programs on setup pages with pre-ticked boxes, so the extra install looks like your choice even though nobody read the page.

Check the install date in Settings, Apps, Installed apps: the program you installed that day is the probable carrier. If you do not need Ads by Neon Great, uninstall it. If it belongs to your hardware or to a program you use, search its exact name and publisher first, because drivers and their tools can have unfamiliar names.

Ads by Neon Great will not uninstall. What can I do?

First restart the PC and try again, because the program may have been running and locked its own files. If the uninstaller is missing or fails, start Windows in Safe Mode, where most third-party programs do not start, and remove Ads by Neon Great from Installed apps there.

If it still refuses, delete its startup entry and its scheduled task, restart, and try once more. A program that actively prevents removal is behaving like malware, so finish with a Microsoft Defender offline scan. Avoid third-party uninstallers offered on search ads; several of them are unwanted programs themselves.

Ads by Neon Great has no uninstaller. What now?

Some adware does not register itself properly, or its uninstaller only opens a web page. First try Settings > Apps > Installed apps and the older Control Panel > Programs and Features; one may list it when the other does not.

If neither works, disable its entry in Task Manager > Startup apps, restart, and run a Microsoft Defender full scan and offline scan, which remove known adware files. Then, if anything is left, delete the folder it ran from, which you can find by right-clicking the process in Task Manager and choosing Open file location.

Does adware steal passwords?

Ordinary adware is built to show ads, not to steal logins, and most of it never touches saved passwords. The line is blurry, though. Extensions that can read every page could capture what you type, and adware ads sometimes lead to phishing pages that ask for passwords directly.

If you entered credentials on a page reached through an ad, change that password from a clean device and turn on two-step verification. Otherwise, removing ad-supported program and clearing cookies is usually enough.

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.

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.

Why didn't my antivirus catch Ads by Neon Great?

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.

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.

Will Fortect remove Ads by Neon Great?

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 Ads by Neon Great, 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

  1. Google Chrome Help: Use notifications to get alerts (no longer online) (read October 6, 2026)
  2. FTC: How to recognize, remove and avoid malware (read October 6, 2026)
  3. Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)
  4. Microsoft Learn: How Microsoft names malware (read October 6, 2026)

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