Multy App (BG: Winter House): what it is and how to remove it
The Multy App (BG: Winter House) is a browser extension or potentially unwanted program that you installed by accident. When added to the browser it performs annoying tasks that changes the browsing experience.
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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Multy App (BG: Winter House): summary
| Distribution | Shady pages, deceptive ads, freeware installations |
|---|---|
| NAME | Multy App (BG: Winter House) |
| TYPE | Browser hijacker, potentially unwanted program |
| SYMPTOMS | Changed homepage and new tab address |
| DANGERS | Intrusive personal information gathering practices |
| 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
| Damage | Not recorded in the old report |
|---|---|
| Name | Multy App (BG: Winter House) |
| Type | Search hijacker extension |
| Symptoms | A changed search engine |
| Evidence | 4 write-ups by security sites; details still limited |
| Search page | searchmulty.com |
| Browsers | Chrome, Edge and Firefox |
| First seen | 13 September 2021 |
| Facts checked | 6 October 2026 |
What Multy App (BG: Winter House) changes in your browser
We may collect information from you that may identify you, such as your name, address, email address, and telephone number and anonymous Information, such as the number of your page views, link clicks, and login times. Your information may be kept in an identifiable format, or in an aggregate format which means that you cannot reasonably be identified from it.
Is Multy App (BG: Winter House) dangerous? What it collects
From our report of Sep 2021 · not reviewed since
Multy App (BG: Winter House) extension changes your browser settings
The Multy App (BG: Winter House) is a browser extension or potentially unwanted program that you installed by accident.
When added to the browser it performs annoying tasks that changes the browsing experience. The extension can affect Google Chrome, Firefox, Internet Explorer, Edge, and other browsers that provide the ability to use add-ons.
The about section states that the add-on saves users the trouble of typing the same search queries on multiple search engines. When added, it changes the homepage to searchmulty.com which has shortcuts to many search engines, social media, and shopping sites.
Despite that, you should not want to keep it as it collects various browsing data that is later used for advertising purposes. The information is sold to advertising networks so that is how the creators make money from this app. It does not have any additional benefits besides redirecting users to other sites so read our guide to learn how you can remove it.
It is rare for people to add extensions like this themselves. Usually, people want applications that will actually improve their user experience significantly. This could be the ability to hide your real location from the websites you visit, block ads or suspicious websites, instantly receive the coupons with the biggest possible discounts for online shopping, and much more.
From our report of Sep 2021 · not reviewed since
User privacy risks associated with Multy App (BG: Winter House)
Like many other hijackers, this one collects various data about you while you are using it.
It can see what you search for, the websites you visit, what you click on, the purchases you make, and more. This is a fragment from their privacy policy:
Because of this, it is important to read the Privacy Policies of the products and services you use. It is the only way to make sure you are not giving away more than you prefer. What is more, the developers can provide this information to third parties and not be held accountable for what they do with it.
Check your browser and PC
- Address:
searchmulty.com
How to remove Multy App (BG: Winter House)
How to remove Multy App (BG: Winter House) and get your search engine back
Remove the extension first.
The search settings only stay fixed once nothing on the PC can change them again.
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: Put the search engine back and delete searchmulty.com
In Chrome open Settings > Search engine > Manage search engines and site search, make an engine you trust the default, and delete
searchmulty.comfrom the list.In Edge type
search engineinto the search box at the top of Settings and open Manage search engines; in Firefox use Settings > Search. Then check the homepage and the new tab page in the same settings, because hijackers change all three.If searchmulty.com is back after a restart, an extension, a program or a policy still sets it, so finish the other steps and check again. The settings are the same on Windows 11 and Windows 10.
Chrome on Windows 11: check Search engine and On startup. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 3: Uninstall programs you did not mean to install
Multy App (BG: Winter House) 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 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 on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 5: Scan the PC, then run the offline scan
A scan finds the parts of Multy App (BG: Winter House) 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.
Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
- In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.
Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.
Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.
Remove from Microsoft Edge
Delete unwanted extensions from MS Edge:
- Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
- From the list, pick the extension and click on the Gear icon.
- Click Remove.
Clear cookies and other browser data:
- Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
- Under Clear browsing data, pick Choose what to clear.
- Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.
Restore new tab and homepage settings:
- Click the menu icon and choose Settings.
- Then find On startup section.
- Click Remove next to any suspicious startup page.
Reset MS Edge if the above steps did not work:
- Press on Ctrl + Shift + Esc to open Task Manager.
- Click on More details arrow at the bottom of the window.
- Select Details tab.
- Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.
Delete extensions from MS Edge (Chromium):
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.
Clear cache and site data:
- Click on Menu and go to Settings.
- Select Privacy, search and services.
- Under Clear browsing data, pick Choose what to clear.
- Under Time range, pick All time.
- Select Clear now.
Reset Chromium-based MS Edge:
- Click on Menu and select Settings.
- On the left side, pick Reset settings.
- Select Restore settings to their default values.
- Confirm with Reset.
- This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.
Remove from Mozilla Firefox (FF)
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.
Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.
Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.
- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.
Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.
Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.
Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.
Protect your privacy - employ a VPN
There are several ways how to make your online time more private - you can access an incognito tab.
However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise.
Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and VPN will let you browse the Internet without a feeling of being spied or targeted by criminals.
No backups? No problem. Use a data recovery tool
If you wonder how data loss can occur, you should not look any further for answers - human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence.
In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.
If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. is one of the leading file recovery solutions you can find on the market - it is likely to restore even lost emails or data located on an external device.
From our report of Sep 2021 · not reviewed since
Remove the extension
Removing add-ons is possible only the manual way, so you will have to go to your browser settings for that.
We have provided instructions for the most frequently used browsers. Keep in mind that this removal method might not work because it might be a potentially unwanted program. Try going to your settings first, and if it does not work, proceed further:
MS Edge (Chromium)
- 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 the suspicious plugins that might be related to the unwanted program by clicking Remove.
- 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 on Uninstall at the bottom.
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.
- 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 unwanted plugin and click Remove.
- Click Safari > Preferences...
- In the new window, pick Extensions.
- Select the unwanted extension and select Uninstall.
- 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.
From our report of Sep 2021 · not reviewed since
Bundled software dangers
One way you could have gotten in this trouble is by downloading a potentially unwanted program.
Most of the time users do this unintentionally by not paying attention during the installation process. These programs come bundled together with software from unofficial sources.
Users do not notice them because they rush and get too excited to try the new program. You should always be attentive during this process and choose a "Custom" or "Advanced" installation method. Do not skip through the steps; read the Terms of Use, the Privacy Policy, and uncheck the boxes next to the files that are not needed.
Identifying which program is responsible for hijacking your browser might be hard if you have never done this before. The program could be disguised as anything - an antivirus, video, or image editing software. If you still want to do this yourself, here are the steps for Windows and macOS users:
To fully remove an unwanted app, you need to access Application Support, LaunchAgents, and LaunchDaemons folders and delete relevant files:
- Enter Control Panel into Windows search box and hit Enter or click on the search result.
- Under Programs, select Uninstall a program.
- From the list, find the entry of the suspicious program.
- Right-click on the application and select Uninstall.
- If User Account Control shows up, click Yes.
- Wait till uninstallation process is complete and click OK.
- Click on Windows Start > Control Panel located on the right pane (if you are Windows XP user, click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.
- Pick the unwanted application by clicking on it once.
- At the top, click Uninstall/Change.
- In the confirmation prompt, pick Yes.
- Click OK once the removal process is finished.
- From the menu bar, select Go > Applications.
- In the Applications folder, look for all related entries.
- Click on the app and drag it to Trash (or right-click and pick Move to Trash)
- Select Go > Go to Folder.
- Enter /Library/Application Support and click Go or press Enter.
- In the Application Support folder, look for any dubious entries and then delete them.
- Now enter /Library/LaunchAgents and /Library/LaunchDaemons folders the same way and terminate all the related .plist files.
From our report of Sep 2021 · not reviewed since
Clear your browsers
After using an app like Multy App (BG: Winter House) you should take care of your browsers.
The websites you visited through it might still be collecting data about you with the help of cookies. It is good to know that cookies are stored on your device, so you can delete them at any time.
You can choose to use a maintenance tool that can perform a scan automatically for you. Besides cleaning all the junk and improving the performance of your device it can fix various system errors.
Of course, you can do this manually too, although it might take some time if you use more than one browser. We added the step-by-step instructions for clearing cookies and cache just in case below this post.
Questions about Multy App (BG: Winter House)
Why does my search engine keep changing to searchmulty.com?
Because something keeps setting it. An extension can change the search engine every time the browser starts, and an ad-supported program in Windows can do it for every browser and re-add the extension after you remove it. Some hijackers also add a policy that locks the setting.
Changing the search engine back only works once the source is gone. Remove extensions you do not recognise, uninstall programs installed around the time searchmulty.com first appeared, and then set the search engine again. If it still returns, check the browser for the Managed by your organization message and follow the policy steps in this guide.
Did searchmulty.com come with a program I installed?
Most likely, yes. Search hijackers such as searchmulty.com usually arrive with free software, where an extra offer is pre-ticked in the installer, or as an extension that promises something useful, such as file conversion, maps, recipes or streaming.
Look at Settings, Apps, Installed apps sorted by install date: whatever was installed just before the search engine changed is the main suspect. Uninstall it, then remove any extension you do not recognise. In future, choose the custom or advanced option in installers and untick extra offers, and install extensions only from the official store pages of publishers you know.
What is searchmulty.com?
It is the search page used by the browser hijacker Multy App (BG: Winter House). It has no search index of its own: it forwards your queries to another search engine and adds ads and tracking along the way.
People rarely choose it on purpose; it becomes the default search engine, home page or new tab after an extension, program or policy changes the browser settings. The page itself is not malware, but it should not be in your browser if you did not set it. The steps above remove the source and restore your settings.
Is searchmulty.com dangerous?
It is not designed to infect the PC, but it is not neutral either. It logs searches, adds sponsored results that are hard to tell apart from real ones, and its ad partners are not checked as strictly as those of major search engines.
Some hijacker pages have shown ads for fake updates, tech support scams and unwanted software. The main harm is to privacy. Remove Multy App (BG: Winter House), and if you entered personal data on sites reached through its results, check those sites carefully.
Do I have to fix every browser?
Yes, every one where the search engine or start page changed. In the cases we checked, Multy App (BG:
- Winter House) affected Chrome
- Edge
- Firefox
Each browser stores its own search settings and extensions, so fixing one does not fix the others, and Windows-level changes such as shortcuts can affect each browser differently. Work through them one at a time:
- remove the extension
- check the policies
- restore the search engine
- start page
If you sync a browser, stay signed in so the fix spreads to your other computers.
Did searchmulty.com record my searches?
Almost certainly. Logging is the point of a hijacker search page: each query, with your IP address, browser details and the result you clicked, is valuable to advertisers.
The operators of searchmulty.com can store and share that data under their own privacy policy, which you never agreed to knowingly. There is no way to delete it from their side. What you can do is stop the flow:
- remove Multy App (BG: Winter House)
- clear cookies and site data for searchmulty.com
- treat sensitive searches made in the meantime as known to a third party
What do I lose if I reset Chrome or Edge?
Less than you might think. A reset turns off all extensions, which you can turn back on one by one, restores the default search engine, home page, new tab and pinned tabs, and clears cookies, so you are signed out of most sites.
Bookmarks, history, saved passwords and autofill data stay. Firefox's equivalent, Refresh Firefox, keeps the same essentials but removes add-ons completely. Before you reset, make sure you know your main passwords or have them saved, since you will need to sign in again.
Is only one browser affected?
Often not. Programs that install hijackers tend to change every browser they find, and sync can carry the extension to other computers signed in to the same browser account. Check Chrome, Edge and Firefox, even the ones you rarely use, and look at the shortcut targets on the desktop and taskbar for each.
If you use sync, remove the extension while signed in so the removal syncs too. Also check the On startup setting and the new tab page, because hijackers change those as well as the search engine.
Can I just block searchmulty.com?
You can, but it treats the symptom. Blocking the domain in a firewall or the hosts file makes searches fail instead of redirecting, while the extension or program that set it keeps running and collecting data.
Hijacker operators also switch to new domains in updates, so a block may stop working within weeks. Remove the source instead, then set your own search engine. If you want extra protection afterwards, turn on Potentially unwanted app blocking in Windows Security, which stops many hijacker installers before they run.
Will Fortect remove Multy App (BG: Winter House)?
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 Multy App (BG: Winter House), 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
- HowToGeek: PUPs Explained: What is a "Potentially Unwanted Program"? (read October 6, 2026)
- BigCommerce: What is an advertising network? (read October 6, 2026)
- Kaspersky: What are Cookies? (read October 6, 2026)
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)