Search.allinoneoffice.net: what it is and how to remove it
Search.allinoneoffice.net by Alex Division LP is a doubtful search engine, which may be involved in affiliate marketing campaigns. Even though it's not a malicious virus, it performs various tasks, such as modifications of web browser's settings, delivery of altered search results, injection of third-party ads or cookie usage, without requiring PC user's permission.
Facts checked October 7, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Search.allinoneoffice.net: summary
| Detection names | No Microsoft detection name is known |
|---|---|
| Distribution | Not recorded in the old report |
| Damage | Not recorded in the old report |
| Name | Search.allinoneoffice.net |
| Type | Fake search engine |
| Symptoms | A changed search engine |
| 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 5 more facts
| Evidence | 4 write-ups by security sites; details still limited |
|---|---|
| Search page | search.allinoneoffice.net |
| Browsers | Chrome, Edge and Firefox |
| First seen | 22 February 2018 |
| Facts checked | 7 October 2026 |
Check your browser and PC
- Address:
search.allinoneoffice.net
How to remove Search.allinoneoffice.net
How to stop Search.allinoneoffice.net from opening
The search page is only the end point.
These steps remove what sends the browser there, then put the search engine back.
Step 1: Put the search engine back and delete search.allinoneoffice.net
In Chrome open Settings > Search engine > Manage search engines and site search, make an engine you trust the default, and delete
search.allinoneoffice.netfrom 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 search.allinoneoffice.net 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 2: 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 3: Uninstall programs you did not mean to install
Search.allinoneoffice.net 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 Search.allinoneoffice.net 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
The following steps will help you to eliminate Search.allinoneoffice.net from Windows:
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.

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

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

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)
Reset Mozilla Firefox right after you remove the hijacker:
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
You can get rid of suspicious extensions from Internet Explorer by resetting its parameters:
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.

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 Feb 2018 · not reviewed since
Experts recommend immediate Search.allinoneoffice.net removal
Search.allinoneoffice.net by Alex Division LP is a doubtful search engine, which may be involved in affiliate marketing campaigns.
Even though it's not a malicious virus, it performs various tasks, such as modifications of web browser's settings, delivery of altered search results, injection of third-party ads or cookie usage, without requiring PC user's permission. That's why it is dubbed as a browser hijacker and potentially unwanted program (PUP).
The hijacker is promoted as a useful optional component of free programs. However, because it's not appropriately disclosed, people end up installing it unintentionally and recognize its presence the next time they open a web browser.
Search.allinoneoffice.net hijack initiates a mess with web browser's parameters. The default search engine is set ti AllinOneOffice Search, while the start page appears to be http:// Search.allinoneoffice.net/. Additionally, people should notice an All-in-One Office New Tab window.
Such ineligible changes allow Search.allinoneoffice.net virus to control people's web browsing activities. No matter what search query people enter into its search bar, they get altered search results, which not only fail to match the parameters that most popular search engines respect, but may also display links to suspicious third-party domains. While usually such technique is used for increasing visitor's rate, sometimes third-parties employ browser hijackers for malware dissemination.
Therefore, if Search.allinoneoffice.net redirects you to unknown web domain, which contains doubtful content, including fishy-looking pop-ups, software updates or other downloads, close the website and scan the system with a professional anti-malware.
Do not fall for the trick even though the start page of the AllinOneOffice virus does seem reliable. This dubious search domain can also use tracking cookies for spying on your browsing activities.
According to its Privacy Policy, the company seeks to obtain your IP address, referral data, browser, and platform type. However, you can never be sure that cookies injected into your web browser won't be misused for the collection of personally identifiable information, such as email address, phone number, your location or name.
Note that Search.allinoneoffice.net virus does not give you any benefit. In contrast, it may decrease your web browser's speed and ruin your browsing experience with irritating ads and inadequate search results. Therefore, we would recommend you to remove Search.allinoneoffice.net as soon as possible.


From our report of Feb 2018 · not reviewed since
Opt out of additional freeware components
Potentially unwanted programs are not the same as severe computer infections.
They do not harm the system directly and, moreover, most of them are considered legitimate apps. Therefore, PUPs (adware and browser hijacker) are seldom distributed using illegal methods.
Usually, PUP developers rely on bundling, which is closely related to free programs. Various games, download managers, PDF converters, etc. are packed with "free" extensions, add-ons or toolbars. The catch is that such installers are disguised under Quick or Basic installation methods. Even if they are called "optional downloads," the quick freeware installation does not even give a chance to opt out of third-party tools.
Nevertheless, you can avoid that by just opting for Advanced or Custom installation method. It will disclose all constituent parts of the software package and allow deselecting them. Keep in mind that default will mark all of them, so all you have to do is to remove the tick from a checkbox next to them.
From our report of Feb 2018 · not reviewed since
Possible Search.allinoneoffice.net removal methods
Browser hijacker can not only disrupt your web browsing activities but also trick you into visiting potentially dangerous websites or even install other unwanted programs.
Therefore, Search.allinoneoffice.net removal is the only thing we can recommend.
Experts from DieViren.de warn that Search.allinoneoffice.net removal might not be successful for those who lack IT skills. All-in-One Office extension may install related files or even Browser Helper Objects, which may recover the hijacker even after the main executable is removed.
Therefore, to remove Search.allinoneoffice.net select a professional security tool and run a full system scan. This way you will save your time and nerves. After all, don't forget to reset the hijacked web browser.
Questions about Search.allinoneoffice.net
How do I change my search engine back from search.allinoneoffice.net?
Open the browser's search engine settings, choose the search engine you want and set it as default, then remove search.allinoneoffice.net from the list.
If the option is greyed out or a note says it is controlled by an extension, remove that extension first and try again. If the browser says it is managed by your organization, a policy holds the setting, and the policy steps in this guide apply.
When the change will not stick, reset the browser: it restores the default search engine and start page and turns off extensions, but keeps bookmarks and saved passwords. Then check Installed apps for a program that may put search.allinoneoffice.net back.
Did search.allinoneoffice.net come with a program I installed?
Most likely, yes. Search hijackers such as search.allinoneoffice.net 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 search.allinoneoffice.net?
It is the search page used by the browser hijacker Search.allinoneoffice.net. 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 search.allinoneoffice.net 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 Search.allinoneoffice.net, 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, Search.allinoneoffice.net affected Chrome, Edge and 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 search.allinoneoffice.net 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 search.allinoneoffice.net 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 Search.allinoneoffice.net
- clear cookies and site data for search.allinoneoffice.net
- treat sensitive searches made in the meantime as known to a third party
Can I just block search.allinoneoffice.net?
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.
Why can't I change my search engine back?
Because something keeps setting it. If an extension controls the search engine, Chrome and Edge show a note that an extension is controlling this setting, and your change is reverted. If a policy controls it, the field is greyed out and the browser shows Managed by your organization.
Remove the extension first, then the policies, and only then change the search engine; the change will stay. If it still reverts, look for a program in Installed apps or a scheduled task that reinstalls the extension.
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.
Will Fortect remove Search.allinoneoffice.net?
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 Search.allinoneoffice.net, 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
- Sucuri Blog: Phishing Attacks Target Ecommerce Checkout Pages (read October 7, 2026)
- DieViren: DieViren (read October 7, 2026)
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 7, 2026)
- Microsoft Learn: How Microsoft names malware (read October 7, 2026)