Call Microsoft Technical Support Immediately: what it is and how to remove it
Call Microsoft Technical Support Immediately is a pop-up window which claims that a virus has been detected on your computer. In order to protect private data, users are urged to contact Microsoft technical support immediately via +0 800 433 7682 or +0 800 090 3829.
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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A scan of the PC is a quick way to confirm nothing was installed alongside the "Your computer has been Locked" pop-up.
Do it yourself · free Remove Call Microsoft Technical Support Immediately yourself 2 steps, about 6 minutes, no software needed.
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Call Microsoft Technical Support Immediately: summary
| Name | Call Microsoft Technical Support Immediately |
|---|---|
| Type | Malware |
| Danger level | Medium. Users can be tricked to give remote access to their devices |
| Symptoms | Fraudulent pop-up appears during browsing sessions and claims that the user's computer is infected with a virus. Victims are advised to contact so-called technical support immediately |
| Indicated number | +0 800 433 7682; +0 800 090 3829 |
| Distribution methods | Software-bundles and malicious websites |
| 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 7 more facts
| Detection names | No Microsoft detection name is known |
|---|---|
| Damage | Not recorded in the old report |
| Evidence | 4 write-ups by security sites; no sample analysed yet |
| Imitates | Microsoft support |
| Phone number | +0 800 433 7682 |
| First seen | 6 August 2018 |
| Facts checked | 6 October 2026 |
What the Call Microsoft Technical Support Immediately pop-up looks like
Your computer has been Locked
Your computer with the IP address might infected by the Trojans– Because System Activation KEY has expired. Your information (for example, passwords, messages, and credit cards) have been stolen. Call the Help Desk number 0800-090-3829 to protect your files and identity from further damage.
'System Activation Error Code: 0x44578 Lock Screen.
To immediate rectify issue and prevent data lose Please call Toll free : 0800-090-3829
Call Microsoft Technical Support Immediately
Is the Call Microsoft Technical Support Immediately warning real?
- Phone number:
+0 800 433 7682
From our report of Aug 2018 · not reviewed since
More from our earlier report on Call Microsoft Technical Support Immediately
- You can quickly get rid of Call Microsoft Technical Support Immediately scam by running a full system scan with
What the Call Microsoft Technical Support Immediately scammers want
From our report of Aug 2018 · not reviewed since
Call Microsoft Technical Support Immediately is a scam that is generated by an adware program
Call Microsoft Technical Support Immediately is a pop-up window which claims that a virus has been detected on your computer.
In order to protect private data, users are urged to contact Microsoft technical support immediately via +0 800 433 7682 or +0 800 090 3829. However, experts warn that this is a phishing scam which is designed to trick gullible people and generate illegal profits by the criminals.
Note that, "Call Microsoft Technical Support Immediately" scam is not related to Microsoft or any other legitimate corporation in any way. This alert is generated by an adware program installed on your PC.
Usually, adware programs which display Call Microsoft Technical Support Immediately alert enter the targeted systems via bundling technique. Note that there are similar fraudulent notifications, such as Microsoft Warning Alert, Call Microsoft Support, and others. Thus, users are advised to stay cautious and avoid becoming the victims of technical support scams .
Once the user appears on the website which urges to Call Microsoft Technical Support Immediately, it might be hard to exit the site. Furthermore, criminals have designed the page to look convincing and included the following statements to intimidate gullible people:
Here is the fraction of the message displayed by so-called Call Microsoft Technical Support Immediately virus:
Experts note that Call Microsoft Technical Support Immediately is a scam and victims should never agree to call via indicated number. In fact, the criminals behind the phone might demand you to give a remote control over your device to supposedly eliminate cyber threats. However, this is a trick used to infiltrate the system with more malicious programs.
Additionally, scammers of Call Microsoft Technical Support Immediately pop-up can promote various questionable security tools which are ineffective and expensive. Thus, you should never click on any content displayed by the rogue website and refrain from calling the fraudulent tech support.
Instead, you can temporarily remove Call Microsoft Technical Support Immediately scam by closing the tab or window. However, this solution won't help you uninstall the adware program which will continue to display Call Microsoft Technical Support Immediately alert in the future.
It will eliminate the ad-supported program and ensure your system's security. We strongly recommend using or another professional tool.
- Your computer has been locked;
- Your computer has been infected by a virus;
- System Activation KEY has expired, and your information has been stolen;
- System Activation Error Code: 0x44578 Lock Screen.


From our report of Aug 2018 · not reviewed since
Browsing on suspicious sites can lead to adware infections
Usually, potentially unwanted programs (PUPs) which redirect to scam alerts are distributed with the help of social engineering techniques.
Users can unconsciously install the adware if they keep browsing on dangerous pages. It is vital to avoid clicking on suspicious content online to protect your system from PUPs.
Additionally, experts warn that adware can spread via software-bundles. It means that you can get infected during the installation of freeware if you recklessly rush through the procedure. Keep in mind that you should opt for Custom/Advanced settings and de-select all questionable check marks to avoid PUPs.
How to get rid of the Call Microsoft Technical Support Immediately pop-up
The warning is a web page and your PC is not infected by it.
Close it, then remove what keeps bringing it back.
Step 1: Close the page without touching its buttons
The warning is a web page, not Windows, so closing the browser ends it. If the page blocks the browser or goes full screen, press Esc first, then end the browser in Task Manager (Ctrl + Shift + Esc). Start the browser again without restoring the session.
Warning: Do not call
+0 800 433 7682and do not let anyone connect to the PC: the people behind it sell fake repairs.On Windows 11 and Windows 10 the steps are identical.
Full procedure with screenshots: Close a frozen app (Task Manager, Force Quit) On uGetFix
Step 2: 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
It is essential to uninstall all suspicious programs from Windows which could be related to Call Microsoft Technical Support Immediately scam.
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
Reset Chrome to the primary state and ensure that none of the unknown extensions, plug-ins, or add-ons are left.
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)
The easiest way to fix Mozilla is deleting all suspicious entries as shown below.
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
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 Aug 2018 · not reviewed since
Get rid of Call Microsoft Technical Support Immediately scam
Simply closing the window will not remove Call Microsoft Technical Support Immediately pop-up.
The elimination procedure is more advanced and should be performed attentively. For that, check the instructions at the end of this article.
Although, if you want to speed up Call Microsoft Technical Support Immediately removal, you can run a full system scan with a verified security tool. Later, don't forget to reset all of the affected browsers.
Questions about Call Microsoft Technical Support Immediately
Should I trust a page that says "Your computer has been Locked"?
No. Genuine security software reports problems in its own window or in the Windows notification area, never on a website you were redirected to. Pages that say "Your computer has been Locked" are built to frighten you into calling a support number, buying a licence through a referral link or installing a so-called cleaner. Do none of those.
Close the tab and, if it opens again by itself, remove the sites allowed to send notifications and any extension you do not recognise. If you already called, paid or installed something, follow the matching section of this guide: each case needs a different next step, from calling your bank to removing a remote-access tool.
Can I trust the people at +0 800 433 7682?
No. They may sound professional, know your Windows version and show you real system screens, but all of that is part of a sales script. The aim of the people behind +0 800 433 7682 is to get remote access to your PC and money from you, sometimes repeatedly through "refund" tricks.
Anything they found was invented or normal, such as warnings in Event Viewer that every Windows PC has. Hang up, do not let them connect and do not pay. If you have already done so, disconnect the PC from the internet and work through the steps for callers in this guide.
What if I called the number on the "Your computer has been Locked" page?
Hang up if you are still on the call, and do not let anyone connect to the PC. If you already allowed a remote session, disconnect the PC from the internet and uninstall the remote-access tool they asked for, such as AnyDesk or a similar program.
Assume they saw everything on the screen. From another device, change the passwords you typed during or after the call, starting with e-mail and banking.
If you paid by card or gift card, contact the bank or the card issuer the same day and ask for a chargeback. Report the call and the page that showed "Your computer has been Locked" to the authorities in your country so the number can be blocked.
I paid the people at +0 800 433 7682. Can I get my money back?
Often yes, if you act quickly. Card payments can be disputed through your bank as fraud; call the number on the back of the card and explain that you paid a tech support scammer reached at +0 800 433 7682. Bank transfers are harder, but the bank may recall the payment if you call the same day.
Gift cards can sometimes be frozen if you contact the card issuer with the codes before they are spent. PayPal and similar services have their own dispute forms. Keep every receipt and message, and report the scam to the police or the national fraud office, since banks often ask for a report number.
Is Call Microsoft Technical Support Immediately really from Microsoft support?
No. It is a web page made to look like a message from Microsoft support. Websites cannot scan your computer, see your files or know whether your antivirus is active. Real security warnings appear in Windows Security or in your antivirus program, not as browser pages with phone numbers, countdowns or prize wheels.
Close the page; nothing was installed just by seeing it. If you want to check, open Windows Security from the Start menu and run a quick scan. It shows the real status of your protection.
I called +0 800 433 7682. What should I do?
If you only talked, hang up and do not call back. The number +0 800 433 7682 belongs to the scammers behind Call Microsoft Technical Support Immediately, not to Microsoft support. If you let them connect to your PC, disconnect from the internet, uninstall the remote access program they used and run a full and offline scan.
Change passwords you typed during the call from a clean device. If you paid or gave bank details, call your bank at once. Report the number and expect refund calls later; they are part of the same scam.
Is my phone affected by Call Microsoft Technical Support Immediately?
Not through the PC. A scam page in a Windows browser cannot reach a phone, even if both use the same account. The sign reported, A browser warning that reads "Your computer has been Locked", happened in a browser on the PC.
Phones can meet similar pages on their own, usually through ads or notifications, and the fix there is the same idea: remove notification permissions and unknown apps. If you used the phone to call a number shown on the page, follow the steps for callers in this guide.
Why do I keep seeing Call Microsoft Technical Support Immediately?
Because something keeps sending your browser to it. The usual causes are a site allowed to show notifications, an extension that injects pages, or ads on sites you visit often. The sign reported, A browser warning that reads "Your computer has been Locked", appears whenever one of these triggers fires.
Remove unknown sites from the browser's notification list, delete extensions you did not install on purpose, and see whether the page returns. If it only appears on one particular site, that site's ads are the source and avoiding it or using the browser's built-in protection settings is the fix.
Why does Call Microsoft Technical Support Immediately keep coming back?
Most often because a site has permission to send notifications, and those notifications lead to new scam pages. Remove notification permissions for unknown sites. Other causes are an adware extension, a browser that restores the previous session, or a site you visit often that shows such ads.
If the page appears outside the browser, a program on the PC is responsible; check Installed apps. If you cannot find the source, resetting the browser removes all of these causes at once.
Will Fortect remove Call Microsoft Technical Support Immediately?
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 Call Microsoft Technical Support Immediately, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- Wikipedia: Technical Support Scam (read October 6, 2026)
- TechTarget: PUP (potentially unwanted program) (read October 6, 2026)
- FTC: How to spot, avoid and report tech support scams (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)