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“Error: Unknown System Failure” Tech Support Scam virus. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Malware
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“Error: Unknown System Failure” Tech Support Scam

“Error: Unknown System Failure” virus is a malicious program that displays intrusive pop-ups and urges to call Microsoft technicians for immediate assistance[1]. It belongs to Tech Support Scam malware category. This deceptive program usually launches new browser windows and loads phishing websites that look like Microsoft support page. These pages trigger pop-ups that urge the victim to call “certified Microsoft technicians” at 855-385-8544 or 888-576-1517 because the computer is in danger for some kind of reason. Such phishing pages typically have very suspicious URLs, for instance, msoft[.]com-msoft435[.]info/ or microsoft.supportkey2[.]info/. Vigilant computer users will immediately notice that such domains have nothing to do with Microsoft and look scammy; however, inexperienced users can be convinced that the message is legitimate and the computer is actually in danger. However, if your computer unexpectedly sends you pop-ups and prevents you from closing them, you need to run a system scan with anti-malware software like Reimage to remove Error: Unknown System Failure Tech Support Scam virus. Error: Unknown System Failure Scam

If you called one of the provided numbers, you would get in touch with criminals that seek to frighten you and make you obey their commandments. Usually, scammers tell the victim to turn the computer on, explain what is shown on a computer screen, go to several directories and perform some useless tasks. Frauds seek to convince the victim that some kind of dangerous malware prevents the computer from running normally and that victim’s computer is being monitored by cyber criminals. The virus might display confusing error codes, for instance, Error #268D3[2] or Error # FXX07. The final goal is to convince the victim to buy some useless software to “fix” the issue or to provide remote access to the system. We highly recommend you to act wisely and not rush to provide access to your computer to strangers. You should know that Microsoft does not try to contact victims by displaying annoying pop-ups via Internet browser and urging to call them. What is more, they never ask to get access to the computer via remote connection programs such as TeamViewer or LogMeIn, which are very popular among scammers. We must point out that these programs are legitimate, but frauds tend to exploit them for their benefit. Therefore, if you suspect that your PC has been infected with the described malware, “Error: Unknown System Failure” removal should become a matter of utmost importance to you.

Protect your computer from malware displaying deceptive pop-ups

Annoying pop-up messages suggesting to call tech support scammers typically appear when the user installs a piece of malware on the computer. Such malware samples are often distributed among popular free programs, pirated software, or via mail spam. We recommend you to be very attentive and act responsibly. Installing programs from shady file sharing sites is never a good idea, as well as attempts to install licensed software without paying for the licence. On top of that, we recommend staying away from emails that come from senders that you do not know in person. If someone sent you a document or a link asking to open it as soon as possible, don’t. Scammers often try to convey a sense of urgency to trick users into installing malicious files without evaluating the potential risk first.

Remove Error: Unknown System Failure malware

To stop your computer from displaying deceptive pop-ups, you must remove Error: Unknown System Failure virus first. However, firstly you need to identify what program is responsible for displaying these annoying alerts, and this task can be quite hard if you are not a computer expert. For a quick Error: Unknown System Failure removal, we recommend using professional programs. Keep in mind that not all antivirus programs are capable of detecting such type of malware, so we suggest using anti-spyware programs. You can find a list of recommended software below.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall “Error: Unknown System Failure” Tech Support Scam virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
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Manual “Error: Unknown System Failure” Tech Support Scam virus Removal Guide:

Remove “Error: Unknown System Failure” Tech Support Scam using Safe Mode with Networking

Restart your PC using these instructions and perform a system scan using your security software. After removing “Error: Unknown System Failure” Tech Support Scam virus, reboot your PC into normal mode again.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove “Error: Unknown System Failure” Tech Support Scam

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete “Error: Unknown System Failure” Tech Support Scam removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove “Error: Unknown System Failure” Tech Support Scam using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of “Error: Unknown System Failure” Tech Support Scam. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that “Error: Unknown System Failure” Tech Support Scam removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from “Error: Unknown System Failure” Tech Support Scam and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Julie Splinters - Malware removal specialist

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