Oniria ads: what it is and how to remove it
Oniria is categorized as an adware app that pushes intrusive content while browsing the web. The ads that come from this program often carry various offers and deals that are likely to attract different types of users and bring the developers pay-per-click revenue.
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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Oniria ads: summary
| Name | Oniria |
|---|---|
| Type | Adware/potentially unwanted program |
| Danger level | Low. This app does not act as a dangerous malware form, for example, ransomware or trojan. However, it still applies some modifications to web browsers and might also affect the operating system in some way |
| Activities | The ad-supported application is known for its capability to provide intrusive advertisements, redirect the user to affiliate sources, collect browsing-related information, and change the web browser's homepage and the new tab URL bar. Also, the adware might bring other PUPs to the computer system |
| Spreading | Such third-party products are mostly delivered through packages of software that come bundled from secondary downloading sources such as cnet.com, download.com, softonic.com, and soft32.com |
| 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 9 more facts
| Distribution | Not recorded in the old report |
|---|---|
| Damage | Not recorded in the old report |
| Symptoms | Redirects to an unknown domain |
| Evidence | 5 write-ups by security sites; details still limited |
| Domains | valid-install.com |
| Ads shown as | Redirects through ad pages |
| Browsers | Chrome, Edge and Firefox |
| First seen | 26 February 2020 |
| Facts checked | 6 October 2026 |
Is Oniria ads dangerous?
From our report of Feb 2020 · not reviewed since
Oniria - adware that collects pay-per-click income by displaying an entire load of ads
Oniria is categorized as an adware app that pushes intrusive content while browsing the web.
The ads that come from this program often carry various offers and deals that are likely to attract different types of users and bring the developers pay-per-click revenue. We have made a research and found out that Oniria virus is related to another potentially unwanted program known as valid-install.com that provides free video streaming offers.
Furthermore, the ad-supported app can initiate suspicious changes on web browsers such as Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, or Safari. After that, you might notice that your homepage and new tab URL bar sections look different.
Also, you might discover that the browser apps are filled with questionable-looking extensions, plug-ins, add-ons, toolbars, or similar content.
Besides modifying web browsers and displaying advertising content on your computer screen, Oniria can also initiate redirects to affiliate sources and start recording your browsing-related activities by installing specific tracking objects into web browsers to collect even more monetary income later on by sharing the gathered information with other parties or by using it for the development of targeted advertising campaigns.
Adware applications such as Oniria are used to be distributed through packages of bundled software that come from secondary downloading websites such as softonic.com, download.com, soft32.com, and cnet.com. Potentially unwanted programs come as additional products and land on computer systems such as Windows or Mac.
If you are employing a Windows device, you might discover unknown processes running in the Task Manager section and bogus apps in the Programs location. However, if you have an Apple machine, be prepared to find rogue products in the Applications folder.
Oniria is an annoying application that might scatter its content all over the computer system and web browsers. However, you cannot trust anything that comes from this program as it has been created for benefiting the developers only. These people are orientated in gaining cost-per-click income from the clicks that are initiated on the advertising content that comes provided by the adware program.
Oniria can push various offers or deals of rogue security software, other computer services, and sales. You should be aware that the suggestions that you are provided with seak to swindle your money and gain benefit from you.
Do not get convinced to download any suspicious programs or services as you will end up spending your money on completely useless stuff. Besides, try not to get lured in any scams that ask for private information or fake reward claims.
Furthermore, Oniria might start initiating redirecting sessions on the infected web browsers. Even though the main goal of such applications is to take the user to affiliate sources, there is a high chance of landing on a malware-laden location and getting your computer infected with a dangerous virus.
This way your device and software might face severe damage that might be very hard to reverse. Do not take anything from Oniria for granted.
Also, Oniria can start recording non-personal information that is related to your browser sessions, history, and habits. The app might install HTTP cookies, pixels, or beacons in the infected web browser to start collecting the data. Details such as recently visited websites, frequently searched offers, hyperlinks and adverts clicked, bookmarks saved, IP address, and browser type are gathered and used for receiving even more income.
Oniria developers can share the collected information with other parties and receive monetary revenue. Also, these people can use the data in targeted advertising campaigns and their development. Adware creators want their ads to look more attractive and collect clicks. For this purpose, the developers figure out what types of offers are relevant for users at the moment and provide similar-looking ones via their ads.
Additionally, Oniria might not come alone. It can bring other potentially unwanted programs such as adware and browser hijackers to the computer system. This way you can find a lot of suspicious processes running on your machine. If the questionable activities get too intense, you might find your CPU energy level rising, your computer slowing down, and your web browser failing to carry out daily activities.
You should remove Oniria from your machine and web browsers to stop its unwanted activities and get rid of all the changes the app has performed.
For this task, you should employ reliable antimalware software or use the manual step-by-step guidelines that have been added to the end of this page for OS and web browser cleaning. Besides, if the adware has somehow compromised your machine, you can try repairing it with the help of .
Also, you need to know that Oniria removal includes terminating all the bogus components that were brought by the adware program, otherwise, you might not be able to get rid of the cyber threat properly. Besides cleaning the entire operating system, you should also eliminate all suspicious extensions and plug-ins that were added to web browser apps such as Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, and Safari.
From our report of Feb 2020 · not reviewed since
More from our earlier report on Oniria
- If you have discovered this program on your computer system, you should get rid of it to stop its intrusive activities.
- You might find some alterings on your device after the adware attack.
- Try repairing the corrupted areas with a piece of software such as
How Oniria ads got into your browser
From our report of Feb 2020 · not reviewed since
Cybersecurity specialists from LesVirus.fr outline that adware programs come from packages of bundled software that is put up for download on secondary websites such as cnet.com, download.com, softonic.com, and soft32.com.
The infiltration process can easily happen when the user downloads some type of PDF manager, video player, or another tool and does not pay attention to the entire installing process where PUPs escape.
For this not to happen, you need to make sure that you have chosen the Custom or Advanced installation mode as these regimes are the ones that allow the user to manage all of the incoming downloads and installations by deselecting all of the suspicious components to prevent them from appearing on your PC.
Also, stop using third-party sources for receiving your products. Get all of the software from reputable developers only.
Additionally, potentially unwanted programs such as adware can get spread through infectious hyperlinks and advertisements that are lurking on third-party websites and waiting for the user to click on them. For this purpose, you should avoid browsing on pages that are marked as unsafe or deceptive. Also, download an antivirus program that will provide you with alerts if something suspicious or malicious is approaching you.
Check your browser and PC
- Address:
valid-install.com
How to remove Oniria ads
How to remove the Oniria 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
Oniria often works through an extension, so go through the extension list of each browser:
chrome://extensionsedge://extensions- Extensions and themes in Firefox
Switch suspicious extensions off one at a time and reload the page where the problem shows, then remove the one that stops it, and any other you did not add.
Remember the other browsers and profiles on the PC. If Remove is missing or greyed out, a policy forces the extension, which the policy step deals with. Windows 11 and Windows 10 show the same pages.
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
Open Settings > Apps > Installed apps in Windows 11, or Settings > Apps > Apps & features in Windows 10, and sort the list by install date. Look at what appeared around the day the problem started and uninstall every program you do not recognise or did not choose.
Free converters, PDF and video tools, "system optimizers" and unknown browsers are the usual carriers of Oniria. If a name is unclear, search for it before you remove it, so you do not uninstall a driver or a Windows component.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 3: Reset the browser
Finish the browser part with a reset, which puts the search engine, start page, new tab page and site permissions back to their defaults and switches extensions off. Chrome: Settings > Reset settings > Restore settings to their original defaults.
Edge: Settings > Reset settings. Firefox: Help > More troubleshooting information > Refresh Firefox, which also removes its extensions. Your bookmarks and saved passwords are kept, and the menus are the same on Windows 11 and Windows 10.
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
Open Windows Security > Virus & threat protection > Scan options, run a Full scan and remove everything it finds. Then select Microsoft Defender Antivirus (offline scan) and click Scan now: the PC restarts and scans before Windows loads, which finds files that hide while Windows runs.
Save your work first, because the offline scan takes about 15 minutes. Both scans are built into Windows 11 and Windows 10, and a second scanner from another vendor is a useful extra opinion.
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
To get rid of the adware program and all the other products that it has brought to the computer system, you should use the below-provided guiding steps for cleaning your Windows OS.
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
To eliminate questionable browser add-ons, extensions, and plug-ins from Google Chrome that have been planted by the adware, you should try out the following guidelines.
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)
To properly clean your Mozilla Firefox web browser from suspicious components and reverse the app back to its previous state, you should use this step-by-step guide.
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.
Reset Internet Explorer
To remove all of the bogus browser helper objects that were included in Internet Explorer by the adware program and get rid of all the changes that were initiated on the browser app, you should try using these instructions.
Remove dangerous add-ons:
- Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
- Pick Manage Add-ons.
- You will see a Manage Add-ons window. Here, look for suspicious plugins. Click on these entries and select Disable.
Change your homepage if it was altered:
- Open IE and click on the Gear icon.
- Select Internet Options.
- In the General tab, delete the Home page address and replace it by your preferred one (for example, Google.com).
- Click Apply and then select OK.
Delete temporary files:
- Press on the Gear icon and select Internet Options.
- Under Browsing history, click Delete...
- Select relevant fields and press Delete.
Reset Internet Explorer:
- Click on Gear icon > Internet options and select Advanced tab.
- Select Reset.
- In the new window, check Delete personal settings and select Reset.
Choose a proper web browser and improve your safety with a VPN tool
Online spying has got momentum in recent years and people are getting more and more interested in how to protect their privacy online.
One of the basic means to add a layer of security - choose the most private and secure web browser. Although web browsers can't grant full privacy protection and security, some of them are much better at sandboxing, HTTPS upgrading, active content blocking, tracking blocking, phishing protection, and similar privacy-oriented features.
However, if you want true anonymity, we suggest you employ a powerful VPN - it can encrypt all the traffic that comes and goes out of your computer, preventing tracking completely.
Lost your files? Use data recovery software
While some files located on any computer are replaceable or useless, others can be extremely valuable.
Family photos, work documents, school projects - these are types of files that we don't want to lose. Unfortunately, there are many ways how unexpected data loss can occur:
- power cuts
- Blue Screen of Death errors
- hardware failures
- crypto-malware attack
- even accidental deletion
To ensure that all the files remain intact, you should prepare regular data backups. You can choose cloud-based or physical copies you could restore from later in case of a disaster. If your backups were lost as well or you never bothered to prepare any, can be your only hope to retrieve your invaluable files.
From our report of Feb 2020 · not reviewed since
Virus removal instructions for Oniria adware
You can remove Oniria from your Windows and Mac computer system with the help of automatical software that will initiate the process and get it finished in a few minutes of time.
These types of tools are especially beneficial for users who do not know how to complete the task on their own. Also, if you are a person that is running into a lack of time, you can also find employing antimalware products very handy.
However, if you want to, you can definitely complete Oniria removal with the help of the manual step-by-step guide that has been added to the end of this article. These instructions show how to clean both Windows and Mac operating systems.
You should also not forget to properly refresh web browser apps such as Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, or Safari that likely got involved in the adware attack too.
Questions about Oniria ads
valid-install.com opens when I click links. What causes it?
When every click leads to valid-install.com 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 valid-install.com install a virus on my PC?
Very unlikely, unless you downloaded and opened something from the pages it led to. Redirect domains such as valid-install.com 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 Oniria?
Oniria is an adware extension, 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.
Oniria 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.
Which browsers does Oniria affect?
In the cases we checked, Oniria 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 Oniria?
Compare them with the details in the table above. Oniria produces redirects through ad pages, and the clearest sign of it is redirects to valid-install.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.
My scan found nothing, but the ads continue. Why?
Because the source may not be a file a scanner looks for. Browser notifications are a permission stored in the browser, and many adware extensions are not flagged because they come from an official store.
Some ad-supported programs are only reported if you enable detection of potentially unwanted apps. So a clean scan does not mean the job is done. Check each browser's notification permissions and extension list by hand, and turn on Potentially unwanted app blocking in Windows Security before scanning again.
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.
Did Oniria collect my data?
Adware typically collects what it needs to choose ads:
- the sites you visit
- search terms
- approximate location
- browser and system details
Extensions with permission to read and change data on all websites can technically see everything on those pages, including forms. That is a privacy problem rather than proof of theft.
If you typed card details or passwords while it was active, changing the most important passwords is a reasonable precaution. Clearing cookies after removal ends the tracking sessions it may have started.
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.
Will Fortect remove Oniria?
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 Oniria, 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
- Kaspersky: What is Adware? (read October 6, 2026)
- Wikipedia: HTTP cookie (read October 6, 2026)
- LesVirus: LesVirus.fr (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)