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How to fix
Error # 3658ad79cc3021a Pop-Up
on Windows

Resolve the pesky Error # 3658ad79cc3021a pop-up on Windows 10 and Windows 11 easily. Follow our expert-tested solutions for quick fixes!

How to Fix Error # 3658ad79cc3021a Pop-Up?
Quick Summary
Error severity
Medium
Est. time
5 minutes
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0 Comments
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What causes How to Fix Error # 3658ad79cc3021a Pop-Up?

  • Compromised domain visit
  • Installation of software bundle from third-party source
  • Presence of potentially unwanted program (PUP)
  • Adware infection
  • Social engineering attack
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Hi everyone. It’s the third time this week when I get Error # 3658ad79cc3021a pop-up during web browsing. It occurred twice on Edge and several times on Chrome. The message reports that my PC is at the risk and provides a tech support telephone number. That reminds me of a scam. Should I worry?

Tech Support Scammers are initiating their fraudulent activities on the Internet as actively as never before. The number of tech-support-scam alerts is increasingly growing each day making a huge profit for their developers. There are tens of rogue tech-support alert examples one of which is the Error # 3658ad79cc3021a. The design and the circumstances of the occurrence do not deviate from those applying for the vast majority of rogue tech-support scam alerts. In most of the instances, it interrupts people during web browsing sessions. It is not limited to one particular web browser, though it might seem that Chrome and Edge are the targets because most of the victims were using one of these two web browsers.

There are two reasons why people may encounter Error # 3658ad79cc3021a tech support scam alert. Firstly, they may land on a compromised domain, for example, gaming, gambling or pornographic site. Secondly, the PC user might have installed a software bundle via third-party download source and ended up with a potentially unwanted program (PUP), namely adware, on the operating system. Both ways, it’s highly advisable to install [d1] and run a full system scan with it. This tool with block compromised websites, as well as warn about PUPs and viruses that may try to get installed sneakily.

The aim of Error # 3658ad79cc3021a scam is to scare a computer owner into believing that his/her computer is at the risk due to some fatal error or virus infection. Such and similar social engineering attacks induce people’s fear of losing personal information, such as credit card details or log in details of social networks. To arouse the sense of urgency, the attackers insert a malicious code into the rogue Error # 3658ad79cc3021a message, which is why a web browser freezes and the user is not allowed to open Task Manager. Scammers indicate only one solution - a call to Microsoft-certified technicians who are supposed to unlock web browser remotely. DO NOT believe a word! Microsoft does not spread such alerts, especially the ones that contain a telephone number! Therefore, you should not hesitate and take a proper care over your PC to fix Error # 3658ad79cc3021a pop-up once and for all.

How to Fix Error # 3658ad79cc3021a Pop-Up?

Error # 3658ad79cc3021a may trick you into calling for scammers. This move may lead to money loss or PC's hijack if you would provide the details necessary to establish a connection with your PC remotely. To prevent this from happening, ignore the content of this rogue alert and try to close your web browser so that you could perform the Error # 3658ad79cc3021a removal.

If you cannot open Task Manager while your web browser is opened, try to click Win key + D to switch to your desktop. If this command worked, open the other web browser (not the one that is stuck with the Error # 3658ad79cc3021a scam) and download [d1]. This anti-malware tool will automatically check the system for potentially unwanted programs and disable them instantly. Besides, it will prevent you from accessing compromised websites. After that, open Task Manager and disable the process of the web browser, which still hands with the tech-support-scam message. After that, reopen that web browser (DO NOT accept the offer to restore the last browsing session) and reset its settings. If you don't know how to do that, here's the guidelines:

How to reset Microsoft Edge?
How to reset Internet Explorer?
How to reset Mozilla Firefox?
How to reset Google Chrome?

If you opt for manual Error # 3658ad79cc3021a fix, here's what you have to do:

  1. Open the list of programs that have recently been installed. For that, navigate to:
    Start > Control Panel > Programs and Features > Add/Remove Programs (Windows 7, XP).
    Right-click on Win key > select Control Panel > Uninstall a Program (Windows 8, 10).
  2. Carefully check what programs have been recently installed. The best way to do that is to sort the programs by date. Select unknown programs and click Uninstall. To confirm the removal, click OK/Uninstall.
  3. After that, reset your web browser, which throws the Error # 3658ad79cc3021a as explained above.

Bottom line

To fix Error # 3658ad79cc3021a, it is recommended to install a reliable security tool and run a full system scan to detect and remove any threats. Additionally, avoid visiting suspicious websites and be cautious when downloading software from unverified sources. If these steps do not resolve the issue, consider seeking professional tech support.

Frequently asked questions

The error # 3658ad79cc3021a typically signifies a corruption in system files or issues with specific applications. This can lead to pop-up notifications disrupting your user experience.

You can resolve this error by running the System File Checker tool via Command Prompt, which scans and repairs corrupted system files. Additionally, ensure your Windows is updated to the latest version.

Yes, this error may frequently appear when using third-party applications that are not fully compatible with Windows 10 or Windows 11. It's advisable to check for updates or reinstall these applications.

Did this fix work for you?
Ryan Mitchell

Written & verified by

Hardware & Driver Specialist
Hardware troubleshooting Driver installation and rollback Device Manager errors USB and peripheral issues Firmware updates

Ryan Mitchell specialises in hardware troubleshooting and driver management for Windows systems. His expertise covers device recognition failures, driver conflicts, firmware updates, and peripheral connectivity issues across all major manufacturers. Ryan's systematic approach to hardware diagnosis — starting with Device Manager, working through driver rollback and clean installs, and escalating to BIOS-level checks — has made his guides a reliable resource for both home users and field technicians. He covers GPUs, printers, audio devices, USB controllers, network adapters, and external storage.

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