Critical Framework Error e-mail scam: how to spot it and what to do
Critical Framework Error might show up on the screen when users browse the web on Google Chrome or another browser abruptly. Many people are caught off guard when their screens are flooded with numerous pop-ups displaying all sorts of misleading information.
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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Critical Framework Error e-mail scam: summary
| Distribution | Users encounter the pop-up message on various malicious websites on the internet. In some cases, redirects to such sites might indicate adware infection |
|---|---|
| Name | Critical Framework Error |
| Type | Phishing, tech support scam, fake alert |
| Claim | Several pop-up messages show up on the screen: each one includes various misleading information, e.g., that the computer has been blocked or that an unauthorized app was trying to enter the PC |
| Goal | Victims are asked to call the fake tech support helpline where crooks would scam them into paying money for imaginary services |
| Related | ERROR # 0xuaO-0x156m(3), Error code # MS-6F0EXFE |
| 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 8 more facts
| Symptoms | A phishing e-mail asking you to sign in and a support phone number shown on screen |
|---|---|
| Evidence | 4 write-ups by security sites; no sample analysed yet |
| Arrives as | |
| Pretends to be | A well-known company |
| Asks for | Your password |
| Phone number | +1-(888) 348-1198 |
| First seen | 16 December 2021 |
| Facts checked | 6 October 2026 |
What the Critical Framework Error e-mail scam e-mail looks like
Critical Framework error. Call immediately: +1-(888) 348-1198
Windows SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk. For technical support call on
Publisher: Unknown Publisher
App: Explorer (1).exe
[Don't run]
How to tell the Critical Framework Error e-mail scam e-mail is fake
- Phone number:
+1-(888) 348-1198
From our report of Dec 2021 · not reviewed since
More from our earlier report on Critical Framework Error
- If you called the provided number and paid money, contact your bank immediately to revert these transactions.
- In case crooks infected your computer with malware, get rid of it and repair damaged system files with
Is Critical Framework Error e-mail scam dangerous? What the senders want
From our report of Dec 2021 · not reviewed since
Critical Framework Error is a scam that spams the screen with pop-ups and plays alarming sounds
Critical Framework Error might show up on the screen when users browse the web on Google Chrome or another browser abruptly.
Many people are caught off guard when their screens are flooded with numerous pop-ups displaying all sorts of misleading information. To add to the confusion, an alarming, loud sound is also played, and the fake message is also narrated. The first thing to do here is not to panic, as many people do, as they are not sure how to stop it.
The top message informs users that their computer has encountered a Critical Framework Error due to an unauthorized app, which allegedly was stopped by Windows SmartScreen. It is then claimed that users need to call a provided technical support phone number to resolve the situation. In the background, many other pop-ups can be seen, as well as Windows logos and page formatting that is used by the official Microsoft website.
Warning: If you have encountered this message, please do not call the fake number.
If you do, the crooks would try to scam you even further and make you purchase fake software, install malware remotely or ask you to pay for fake services hundreds of dollars. Instead, read through the information we provide below in order to remove the Critical Framework Error from your browser and ensure that your system is secure.
There are thousands of scams employed by malicious actors to carry out their deeds. From you being asked to enable notifications to allegedly verify you are not a robot to full-fletched phishing schemes that make users lose thousands of dollars.
The technical support scam category, which Critical Framework Error belongs to, is one of the most damaging in terms of how much money users are scammed of their pockets every year - we are talking billions of dollars.
The first step of the scam is to make users land on the website that would display fake error messages - the URL of these sites can vary greatly, but some of the spotted addresses spreading it were yicbf3.gq or buddiesmeetup.com. Here is your first red flag: the message shows various Microsoft logos and pretends to be from the company, although the real Microsoft would never use such phony URLs.
As soon as people land one of the malicious pages, they are met with a rather large number of pop-ups. The top one, which is shown in orange/yellow color and looks like a warning, says the following:
Windows SmartScreen is a built-in feature by Microsoft that warns users about online scams, phishing attempts, and similar. Crooks only use the name to mislead people and make them believe that the warning actually comes from Microsoft, which it doesn't.
Additional pop-ups include various other warnings such as This computer has been blocked, Windows Firewall Security Alert or Windows Support Alert. As evident, the other messages are only there to intimidate and frighten visitors even more, and everything that is claimed there is fake.
Likewise, a loud sound that of the alarm might be playing in the background, with automated text being read. This social engineering trick is commonly used by many scams - it is designed to make people panic and do what they are told. In reality, any website can play sounds automatically as soon as you enter; in this case, it is the fake warning that is being read.
In order to remove Critical Framework Error from your browser, simply close down the tab it is shown in. In some cases, it might be difficult to do due to the way the page was designed; if that happens, press Ctrl+ Shift + Esc on your keyboard and shut down the process of your browser immediately.


From our report of Dec 2021 · not reviewed since
Check your device for adware and malware
There are two ways you might have ended on a phishing website - you either clicked a link on some malicious website (for example, torrent and similar illegal sites commonly employ fake "Download" and similar links), or your browser acted of its own volition due to adware infection.
While the latter is not usually the primary cause, we strongly recommend you do not dismiss this possibility. This is especially important if you downloaded something from the phishing page or allowed remote access to cybercriminals.
Before you proceed with the steps below, you should first perform a full system scan with , , or another reputable anti-malware. This would ensure that there are no malicious processes or programs running in the background. The below steps would also provide instructions to remove potentially unwanted applications that are not always detected by anti-malware tools.
MS Edge (Chromium)
MS Edge (legacy)
Uninstall unwanted programs
Apps installed on the system level can engage in much more damaging activities, especially if they are installed with elevated permissions. If you can't find anything out of the ordinary or you are not sure about whether or not a program is safe, leave the job to cybersecurity software instead.
- 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.
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the window's top-right).
- Select Add-ons.
- In here, select the unwanted plugin and click Remove.
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions 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.
- 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.
From our report of Dec 2021 · not reviewed since
Do not call the fake Microsoft technicians
Many scams impersonate well-known company names.
Since the targeted audience for tech support scams is usually Windows or Mac owners, crooks commonly create fake websites designed to look like those of Microsoft or Apple, which kind of makes sense, as users are led to believe the warning comes from a legitimate source.
In reality, these and many other tech companies that provide some type of digital service would never send you alerts about your personal issues. Error codes might be shown on your system but not within your browser.
Likewise, error codes never provide a contact number to resolve them - this is done precisely for the reason so that users could easier separate scams from legitimate messages. Don't forget that looks are just that - they can be fabricated easily.
If you panic and call the fake tech support helpline, you would likely be asked to provide the access to your computer remotely. At this point, cybercriminals might show you some fake "evidence" that there is a virus on your system and, in order to remove it, you need to pay a fee, which is usually quite large.
Alternatively, you might be asked to install other software that might be malicious or simply pay for the provided "services. You might also later realize that you have called a premium number and be charged a lot for it. No matter how you look at it, never call these numbers and always refer to the official website if you are in doubt.
If you have been scammed already and paid money, you should contact your bank and explain what happened - it might be possible to reverse the transaction.
What to do after the Critical Framework Error e-mail
If you only received the message and clicked nothing, step 3 is all you need.
If you clicked the link or typed anything on the page it opened, do every step, starting with the password.
Step 1: Change the password you typed on the fake page
If you typed a password on the page the Critical Framework Error message opened, assume the sender has it. Go to the real site by typing its address yourself and change the password there, choosing one you have never used.
Change it anywhere else the same password was used, and sign out all other sessions if the service offers it. Any browser on Windows 11 or Windows 10 will do, as long as you do not follow the e-mail's link.

Microsoft account, Security page (account.microsoft.com/security): Change password. Full procedure with screenshots: Turn on two-step verification / secure a hacked account
Step 2: Turn on two-step verification
With two-step verification on, a stolen password alone no longer opens the account, because a sign-in from a new device also needs a code from your phone.
Switch it on for the e-mail account first, then for banking, shopping and social accounts that use that address.
Check the recovery phone, the recovery e-mail and any forwarding rules while you are in the settings, since attackers change them to come back. The pages are the same on Windows 11 and Windows 10.

Microsoft account: Manage how I sign in, where two-step verification and the sign-in methods are. Full procedure with screenshots: Turn on two-step verification / secure a hacked account
Step 3: Report the e-mail and delete it
Do not reply and do not click anything else in the message. In Outlook select the e-mail and choose Report > Report phishing; in Gmail open the three-dot menu next to Reply and pick Report phishing.
That trains the filter for everyone on the service, and the message goes to the junk folder. If the e-mail came to a work address, forward it to your IT team as an attachment first.
The steps are the same in the web mail and the mail apps on Windows 11 and Windows 10.

New Outlook for Windows and Outlook on the web: Report > Report phishing. Full procedure with screenshots: Report a phishing e-mail
Step 4: Scan the PC if you opened a file from the message
A fake sign-in page only steals what you type, so most readers can skip this step. If the Critical Framework Error e-mail made you download or open a file, delete it and scan the PC.
In Windows Security > Virus & threat protection > Scan options, run a Full scan and then Microsoft Defender Antivirus (offline scan) > Scan now. The offline scan restarts Windows 11 or Windows 10 and takes about 15 minutes.

Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Do not let government spy on you
The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.
Avoid any unwanted government tracking or spying by going totally anonymous on the internet.
You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.
Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.
Backup files for the later use, in case of the malware attack
Computer users can suffer from data losses due to cyber infections or their own faulty doings.
Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.
When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.
Questions about Critical Framework Error e-mail scam
Does getting "Critical Framework error." mean my account was compromised?
Not by itself. Phishing waves are sent to long lists of addresses collected from old breaches, websites and guessing, and the sender does not know whether you even have the account the message mentions. Getting "Critical Framework error." only means your address is on such a list.
It becomes a problem if you sign in through the link. To be sure, open the real service from a bookmark and check recent activity and security alerts. If you see nothing unusual and you did not type your password into the fake page, your account is fine.
Can I trust the people at +1-(888) 348-1198?
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 +1-(888) 348-1198 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.
I typed my password after "Critical Framework error.". What now?
Act within the hour. From another device, open the real site of the account the message "Critical Framework error." imitated and change the password. If the same password is used anywhere else, change it there too.
Sign out of all other sessions, check the recovery e-mail and phone number, and look for mail forwarding rules or filters you did not create. Then turn on two-step verification with an authenticator app or a passkey.
If the fake page also asked for a card number or a bank login, call your bank and ask them to block the card. Finally, report the e-mail so others are warned.
They called me back from +1-(888) 348-1198 offering a refund. Is it real?
No. The refund call is a second scam by the same people. They say they will return your money, ask you to log in to online banking while they are connected, then claim they sent too much and ask you to send the difference back, by transfer or gift cards.
In reality they moved your own money between your accounts or edited the page. Hang up on any call from +1-(888) 348-1198 or anyone who mentions your earlier repair.
If you want a refund, ask your bank or card issuer directly. If they had remote access, remove their tool and change your passwords from another device.
Could Critical Framework Error be a genuine message?
We checked it, and it is not. A well-known company is only the costume. The message exists to get your password, and real companies handle that inside your account, after you sign in normally, not through links, attachments or phone numbers in a message you did not expect.
Scammers copy logos and footers perfectly, so the design proves nothing. The sender address, the link target and the request are the reliable signs, and all three point to a scam here. Delete it, and if you are worried, check your account directly.
Who answers +1-(888) 348-1198?
Not the company named in the message. +1-(888) 348-1198 leads to a call centre that runs Critical Framework Error, often far from the country it claims to be in. The agents follow a script: they confirm a charge you never made, then offer a refund that requires remote access to your PC.
Scammers change numbers often and may also spoof caller ID when they call you back. If you want to talk to the real company, find its number on its official site or on your card or statement, never in the message.
Could malware on my computer cause Critical Framework Error?
It can, but it is not the most common cause. Information stealers copy saved passwords and session cookies from browsers, which can lead to an e-mail with the subject "Critical Framework error.". More often, the password came from a breach or a phishing page.
To be sure, run a full scan in Windows Security and check Installed apps and browser extensions. If anything is found, clean the PC first and change passwords afterwards from a clean device, because changing them on an infected PC lets the malware take the new ones too.
Is it worth reporting a scam if I lost nothing?
Yes. Reports from people who did not fall for Critical Framework Error are how blocklists, mail filters and hosting companies find new scam pages quickly, often before most recipients open the message. Reporting the message as phishing in your mail app is enough for most people.
If the message impersonates a company, its security or abuse team usually accepts forwarded copies too. Police reports matter mainly when money or documents were lost, but national fraud centres also collect reports without losses to spot campaigns.
What is the single best habit against scams like this?
Never act on a message through the message itself. If something claims to be from a well-known company and asks you to sign in, pay, call or open a file, close it and go to the service the way you always do:
- a bookmark
- the app
- the number on your card
Real problems will be visible there. This one habit defeats almost every phishing, invoice, delivery and account-suspension scam, regardless of how convincing the design is, because the scammers can copy the look but not the real account.
Will Fortect remove Critical Framework Error?
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 Critical Framework Error, 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
- Spectrum News: Elderly Americans lost $1 billion in online scams in 2020 (read October 6, 2026)
- Check Point: Phishing Attacks: Statistics and Examples (read October 6, 2026)
- Wikipedia: Social engineering (security) (read October 6, 2026)
- FTC: How to recognize and avoid phishing scams (read October 6, 2026)
- CISA: Recognize and report phishing (read October 6, 2026)