Add names of applications in the taskbar

Error Code 0xc004fc03 – What is it?

Error code 0xc004fc03 occurs when Windows users fail to activate their Windows operating system due to a networking problem. The error code’s common symptoms include the following:

• Inability to activate Windows 10 operating system
• Message box with error code 0xc004fc03

Solution

Error Causes

Error code 0xc004fc03 in Windows 10 usually occurs due to issues related to a Windows user’s network. Your computer may be having problems connecting to the Internet or your firewall may be blocking or interrupting your device’s ability to activate Windows 10. In some cases, users may simply need to wait a day or two to reattempt to activate their system using a valid product key, as there may be an issue with the Windows activation servers.  Failure to promptly fix this error code might result in other Windows 10 error messages, such as error code 0xc004f034.

Further Information and Manual Repair

To rectify the error code, Windows 10 users will need to perform manual repair procedures that fix the underlying problems causing error code 0xc004fc03. These procedures may include reconnecting to one’s network, checking your firewall settings, or activating your Windows operating system via phone. The manual repair methods are simple and do not require technical knowledge of the Windows operating system. If your attempts at manually repairing this error code fail, however, you may need to try a few other procedures.

Method One: Verify Internet Connection

To check your Internet connection, you’ll need to access the Network & Internet tab in Windows 10. Follow the instructions below to access this tab and fix Internet connectivity issues if they are preventing you from activating Windows on your machine.

• Step one: Click the Start button and select Settings
• Step two: Select Network & Internet
• Step three: Click the Status section of the Network & Internet tab

If your status shows that you are not connected to a network, you will need to fix your connection. Simply use the Network Troubleshooter to troubleshoot your connection. You will be able to activate your copy of Windows once your connectivity issues are resolved.

If, however, the problem persists and error code 0xc004fc03 occurs during the activation process, this simply means that the existence of the error code is not due to connectivity or networking problems. In such a case, move to the next manual repair method listed below and follow the exact instructions given.

Method Two: Check Firewall Settings

Windows Firewall protects your PC from hackers, worms, and other malicious programs. However, in some cases, it may result in error codes like error code 0xc004fc03. If your firewall is interfering with the Windows 10 activation, you’ll be able to rectify the problem by simply adjusting your settings. Follow the steps below to check – and adjust if necessary – your Windows Firewall settings.

• Step one: Click search bar and type firewall
• Step two: Select Windows Firewall
• Step three: Select Turn Windows Firewall on or off

In some cases, Windows users may not be able to adjust settings within the Windows Firewall tab, as your firewall settings may be controlled by a third party antivirus software. If this is the case, open the antivirus software and turn off the firewall if the software does not prevent you from making such changes to its settings.

Note, however, that you will need to readjust the settings as soon as you activate your version of Windows 10. This is due to the fact that turning off your firewall settings permanently may lead to exposure to worms and other malicious programs.

Method Three: Activate Windows by Phone

Activation of Windows via phone is another option for individuals experiencing error code 0xc004fc03. The activate by phone option in the Update & Security tab will be available once you fail to activate Windows 10. To complete this manual repair method, follow the steps below.

• Step one: Select Settings
• Step two: Click Update & security
• Step three: Select Activate by phone
• Step four: Follow the instructions provided thereafter.

This is one of the most effective ways to fix error code 0xc004fc03. If the issue persists, however, you can proceed to the last resort.

Method Four: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.

As you know, the USB security keys are a secure medium to validate a lot of components in a computer. They can be used to log in to Windows 10. Now with the advancement of APIs, you can authenticate across the website as well using the same key. However, there are times when it may not work and it could be caused by several factors. It could be due to corrupted or incompatible drivers or it could also be due to compromised integrity of the key, and many more. So if you happen to encounter an issue with the USB security key on your Windows 10 computer, then there are several potential fixes you can try. You can try toggling the Internet Options settings or reinstall the respective USB drivers. You could also try changing the PIN of the security key or disable the antivirus program on your computer or troubleshoot the web browser. Refer to the potential fixes provided below to fix the problem.

Option 1 – Try to toggle the settings of the Internet Options

• In the Windows Search box, search for Internet Options to open it.
• Next, go to the Security tab and drag the security slider to the lowest possible security for all the given zones.
• After that, click on OK to save the changes made and close the Internet Options.

Note that this option is only a temporary measure as it can make your computer vulnerable. Make sure to press the Reset all zones to default level button.

Option 2 – Try to update or reinstall the respective drivers

If updating the drivers of the device did not fix the problem with the USB security key, you can try to update or reinstall the Universal Serial Bus Controller drivers instead of using the Device Manager. Refer to the following steps:

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the “Universal Serial Bus controllers” option and then right-click on each one of the USB drivers and select the Update Driver from the menu.

Note: If it is a regular USB drive, then it will be listed as a USB Mass Storage Device but if you have a USB 3.0 device, then look for a USB 3.0 Extensible Host Controller.

• Restart your PC and then click the “Search automatically for updated driver software” option.

Note: If updating the USB Controller drivers didn’t work, you can try to reinstall them instead.

Option 3 – Try to change the PIN of the security key

If the first two options didn’t work, you can try changing the PIN of the security key. There are instances when the PIN for the security key might have been corrupted. Thus, resetting it can help you resolve the problem.

Option 4 – Temporarily disable Firewall and third-party antivirus

Firewall and antivirus programs are known to block the proper functioning of the USB security key. Thus, your antivirus or firewall programs might be the reason why you can’t download anything on your Windows 10 computer. To isolate the issue, you need to temporarily disable both the Firewall and antivirus programs and then check if you can now download anything from the internet. Do not forget to enable them again as disabling them can leave your computer vulnerable to cyber threats.

Option 5 – Try to troubleshoot the web browser

Troubleshooting your web browser can also help you fix the USB security key problem. You can do that by checking if your web browser supports the security key and you can do that by checking on the official website of your browser. You can also try to update your web browser to its latest version but if it didn’t help, you can try to reinstall it or switch to another web browser.

Hello and welcome to another great tutorial from errortools.com. Today we will be making Windows START menu full screen. First introduced in Windows 8.1, the start menu has been shifted from full screen to gadget like in Windows 10 but if you prefer to have it over the entire screen with all of its glory and large icons you can do so and we will be happy to show you how. Press ⊞ WINDOWS and choose settings. From the settings screen, choose Personalization. Under personalization options click on START. And then on the right part click on the button under Use Start full screen to turn it ON That's it, your start menu is now full screen.

The GameStream is an NVIDIA service that allows users to stream games from their Windows 10 computers to other supported devices which includes the NVIDIA SHIELD devices. However, a number of users reported that the NVIDIA GameStream is not working on their Windows 10 computers. This kind of issue is most likely caused by improper installation, some glitches with the network, and many more. To fix this issue in the NVIDIA GameStream, there are several options you need to check out to fix the problem. You can try to lo logout of GameStream and try logging back in again. You could also try to update or uninstall and reinstall the drivers related to NVIDIA or fix some network glitches or update the NVIDIA SHIELD device. For more details, you can refer to each one of the given potential fixes below.

Option 1 – Try to logout and log back into NVIDIA GameStream

The first thing you can do is to log out and then log back into NVIDIA GameStream. Some users claimed that by doing this simple task, they were able to resolve the problem. This is probably because with the re-login, the entire cache of the system and service is rebuilt and any bad sectors of that data will be replaced with the fresh one so this should resolve the problem with the NVIDIA GameStream, if not, refer to the other given options below.

Option 2 – Try updating the drivers from the official site of NVIDIA

If both the first and second given options didn’t work, you can also try updating the drivers from the official NVIDIA website. And in case you don’t know the type of Nvidia graphics card that your computer is on, follow the steps below:

• Tap the Win + R keys to open the Run dialog box.
• Next type in “dxdiag” in the field and click OK or hit Enter to open the DirectX Diagnostic Tool.
• From there, you can see what type of Nvidia graphics card that your system is on.
• Take note of your graphics card information and then look for the best drivers for your operating system. Once you’ve downloaded and installed the file, restart your PC.

Option 3 – Try to roll back the driver to the previous version

If updating the NVIDIA display drivers didn’t work for you, then it’s time to roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh.

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the NVIDIA Drivers and expand it.
• Next, select the driver entries that are labeled appropriately.
• Then select each one of them and double click to open a new mini window.
• After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of the NVIDIA Drivers.
• Now restart your computer to successfully apply the changes made.

Option 4 – Try fixing your network

The next thing you can do to fix the problem with the NVIDIA GameStream is to fix the glitches in your network. Make sure that you connect both of your devices to a 5 GHz Wi-Fi network and you also have to ensure that the Wi-Fi connection you’re connected to is strong enough for both the devices for the latency to go down. Once you’ve covered all of these things with your network, restart your computer and change the Wi-Fi channel both devices are connected to. This should resolve the problem.

Option 5 – Try to update the NVIDIA SHIELD device

You might also want to update the NVIDIA SHIELD device. There are times when an outdated NVIDIA SHIELD device can result to several issues like the problem with the NVIDIA GameStream. Thus, you need to update NVIDIA SHIELD and check if it fixes the problem or not.

The new thing from Mozilla is not a browser, it is a VPN!

Besides Firefox, Mozilla offers now Firefox Relay, an app helping you to mask your email and phone number, and a new Mozilla VPN.

Mozilla has recently announced a new subscription model that will let you use all products together for $6.99 per month. Although this is a little more expensive than the competition that goes around for $5 per month note that with this subscription you are having access to all services, not just VPN.

VPN will not only hide your IP address but will also make sure websites cannot access your real location and it encrypts all of your network activity. Relay will give you protection against spam, serving as a shield for your email and limiting spammers from access to your real email address and phone number. With Mozilla subscription will let you use both services.

Microsoft has presented its next version of their flagship product, Windows 11, and feelings are divided among users. Some users like it very much and eager to upgrade, some do not like the graphic overhaul it went through, but overall I think Microsoft has done a good job with it. Here in this article, we will discuss some of the new features which Windows brings to the table, well at least ones that were showed, I am sure there are plenty more which we will see once OS has been released.

New Start menu

One of the first things that everyone saw when Microsoft has unveiled Windows 11 is its Start menu. Funny enough this is what has caused most of the divide among users, some find it interesting, and some do not like it. Truth is, it is different, and it is centered in the middle instead of the lower left part of the screen. It has been confirmed however that the Start menu can be moved to any part of the screen so if you want, you could place it on the lower left as it has always been. Live tiles do not longer exist in the Start menu, instead, we have styled simple icons.

Windows 11 Snap controls are great

If you have used the cascade option in previous Windows versions then it is most likely that you will like the new Snap controls. You can quickly snap windows side by side, or arrange them in sections on your desktop just by hovering over maximize button on the title bar.

Windows 11 File Explorer

File explorer has gone through some visual and design changes, the ribbon on top has been completely removed and replaced with a header-like feature with a slick and clean design. The header contains a nice organized and designed single row of icons like cut, paste, copy, rename, delete, and new folder icons.

Settings app ovberhaul

The settings app also has gone through visual and design changes. It has a new design that is very visually appealing and navigation has been simplified and more organized. Finding the right and desired setting is much faster and clearer now.

Widget tab makes comeback in Windows 11

Yes, widgets are back but not like you remember them. Instead of being all-time present at your desktop like once they used to be, now there is a button on the taskbar which brings the widget bar up that contains desired widgets. This way they are easily accessible and do not clutter desktops. So far we have weather, news, calendar, and stocks widget but we will see how development on these goes. I expect to have community-made widgets like in old days for all of our needs.

XBOX app

The new Xbox app is now integrated into Windows 11, offering quick access to Xbox Game Pass games, the social parts of the Xbox network, and the Xbox store.

Security and TPM 2.0 in Windows 11

As widely known by now Windows 11 will require you to have a TPM 2.0 module capable CPU in order to install it. This system requirement has caused a lot of controversies but essentially it seems that MS's goal is to protect your personal data by using this module. The upside of course is that your data will be protected much more than in previous Windows versions, the downside, of course, will be that you will need newer hardware to run OS on it. and that is essentially it, keep on tuned on more Windows 11 information and overall articles tied to PC and technology here at errortools.com

FindGoFind is a browser extension for Google Chrome.Developers present findgofind.com as an improved Internet search engine that supposedly enhances the Internet browsing experience by generating better search results. These claims often trick users into believing that findgofind.com is legitimate and useful. In fact, developers promote this site using deceptive software download/installation set-ups that hijack web browsers and modify various options without permission. Furthermore, findgofind.co continually records various data relating to users’ Internet browsing activity.

While this extension is installed, users will see additional unwanted ads throughout their browsing sessions. Furthermore, this extension changed the default search engine to FindGoFind to easier display Sponsored content.

About Browser Hijackers

Browser hijackers (also known as hijackware) are a type of malicious software that modifies web browser configuration settings without the computer owner’s knowledge or approval. These hijacks are raising at an astonishing rate across the world, and they can be truly nefarious and sometimes harmful too. Browser hijackers can do a variety of things on your computer. These are typically used to force hits to a specific site, manipulating web traffic to earn ad revenue. Many people believe that the browser hijacker is just a harmless website but that is incorrect. Almost every browser hijacker poses an actual threat to your online safety and it’s vital to categorize them under privacy risks. When the malware attacks your computer, it begins to mess things up a whole lot that slows your PC down to a crawl. In the worse case, you will be pushed to tackle serious malware threats too.

How one can know if your browser is hijacked

The typical signs that signify having this malicious software on your PC are: 1. the home page of the browser is changed all of a sudden 2. you see new unwanted favorites or bookmarks added, usually directed to advertisement-filled or porn websites 3. the default browser configurations are changed and/or your default web engine is altered 4. you’ll see multiple toolbars in your internet browser 5. you see lots of pop-ups on your screen 6. your internet browser has become unstable or starts running slowly 7. you can’t navigate to certain websites, like security software-related sites.

Exactly how they infect computer systems

Browser hijackers may use drive-by downloads or file-sharing websites or even an e-mail attachment to reach a targeted computer. They also come from add-on programs, also known as browser helper objects (BHO), web browser plug-ins, or toolbars. Also, certain freeware and shareware can put the hijacker in your PC through “bundling”. Some of the most well-known hijackers are FindGoFind, Babylon Toolbar, Conduit Search, Sweet Page, OneWebSearch, and CoolWebSearch.

How you can get rid of a browser hijacker

Some hijackers can be simply removed by uninstalling the free software they came with or by deleting any add-ons you have recently added to your system. In some cases, it can be a difficult job to find and delete the malicious program because the associated file might be running as part of the operating system process. Apart from that, manual removal expects you to perform several time-consuming and complicated actions that are tough to do for new computer users. Industry experts always recommend users to eliminate any malware including browser hijacker with an automatic malware removal tool, which is easier, safer and faster than the manual removal method. SafeBytes Anti-Malware can counter relentless hijackers and provide you with proactive PC protection against all kinds of malware.

What you can do if Virus Prevents You From Downloading Anti-virus?

Malware may cause several kinds of damage to computers, networks, and data. Some malware sits in between the computer and your net connection and blocks a few or all internet sites that you want to visit. It will also block you from adding anything to your system, particularly the anti-virus program. So what to do if malicious software keeps you from downloading or installing Anti-Malware? There are a few actions you can take to get around this issue.

Download the application in Safe Mode with Networking

If the malware is set to load at Windows startup, then booting in Safe Mode should prevent it. Just the minimum required programs and services are loaded when you start your computer in Safe Mode. To start your Windows XP, Vista, or 7 computers in Safe Mode with Networking, do as instructed below. 1) At power on/start-up, hit the F8 key in one-second intervals. This will conjure up the Advanced Boot Options menu. 2) Select Safe Mode with Networking with arrow keys and press Enter. 3) When this mode loads, you will have the internet. Now, use your browser to download and install Safebytes Anti-malware. 4) Following installation, run a complete scan and let the software delete the threats it detects.

Use an alternate web browser to download an antivirus application

Some malware may target vulnerabilities of a particular browser that obstruct the downloading process. If you’re not able to download the anti-malware software program using Internet Explorer, it means the virus is targeting IE’s vulnerabilities. Here, you need to switch over to a different browser like Firefox or Chrome to download Safebytes Anti-malware software.

Make a bootable USB anti-virus drive

Another option would be to make a portable antivirus program onto your USB thumb drive. Adopt these measures to use a flash drive to fix your infected computer system. 1) Download the anti-malware program on a virus-free PC. 2) Connect the USB flash drive to a USB port on the uninfected computer. 3) Double click on the downloaded file to run the installation wizard. 4) Pick a USB flash drive as the place when the wizard asks you exactly where you intend to install the application. Follow the activation instructions. 5) Transfer the pen drive from the clean PC to the infected PC. 6) Run the Safebytes Anti-malware directly from the pen drive by double-clicking the icon. 7) Hit the “Scan” button to run a full computer scan and remove viruses automatically.

Protect your PC against Malware With SafeBytes Security Suite

If you are looking to download an anti-malware application for your PC, there are several tools out there to consider nonetheless, you should not trust blindly anyone, no matter whether it is free or paid software. A few are good ones, some are decent, and some are merely fake anti-malware software that will harm your PC themselves! You need to be very careful not to select the wrong product, particularly if you buy a paid application. When considering commercial application options, the majority of people select well-known brands, like SafeBytes, and are very happy with them. SafeBytes anti-malware is trustworthy software that not only secures your PC permanently but is also very easy to use for people of all ability levels. Once you have installed this software, SafeByte's sophisticated protection system will ensure that no viruses or malicious software can seep through your personal computer.

SafeBytes has excellent features when compared to other anti-malware programs. Listed below are some of the features you may like in SafeBytes.

Robust Anti-malware Protection: With a critically acclaimed anti-malware engine, SafeBytes offers multilayered protection which is made to find and get rid of viruses and malware that are hidden deep in your computer’s operating system. Real-Time Protection: SafeBytes gives complete and real-time security for your PC. It’ll inspect your personal computer for suspicious activity at all times and its unparalleled firewall protects your PC from illegal access by the outside world. High-Speed Malware Scanning Engine: SafeBytes Anti-Malware has got a multi-thread scan algorithm that works up to 5 times faster than any other antivirus software. Safe Web Browsing: SafeBytes provides an instant safety rating on the web pages you are going to check out, automatically blocking unsafe sites and making sure that you’re certain of your online safety while browsing the web. Lightweight: The program is lightweight and can run silently in the background, and that does not impact your PC efficiency. Premium Support: For any technical queries or product guidance, you can obtain 24/7 professional assistance through chat and e-mail. To sum it up, SafeBytes has created a meaningful anti-malware solution that is aimed to protect your computer against all manner of malware. There is no doubt that your PC will be protected in real-time as soon as you put this software program to use. You’ll get the best all-around protection for the money you pay on SafeBytes Anti-Malware subscription, there’s no question about it.

Technical Details and Manual Removal (Advanced Users)

If you wish to carry out the removal of FindGoFind manually instead of employing an automated tool, you may follow these simple steps: Navigate to the Windows Control Panel, click the “Add or Remove Programs” and there, select the offending program to remove. In case of suspicious versions of browser plug-ins, you can actually remove it via your browser’s extension manager. You’ll likely also want to reset your browser. If you opt to manually delete the system files and Windows registry entries, use the following list to make sure you know precisely what files to remove before performing any actions. Please remember that this is for experienced users only and might be challenging, with wrong file removal resulting in additional system errors. In addition, some malicious programs have the capability to defend against its deletion. Doing this malware-removal process in Safe Mode is recommended.

Error Code 0xC004C770 – What is it?

If the Error Code 0xC004C770 popped up on your computer during your activation of the Windows 10 software, don’t worry. This is a fairly common error, especially for people who own more than one computer upon which Windows 10 is installed and activated. The gist of this error code is that the product key that you have entered has already been claimed or used on a different computer. Because there are limitations on the number of computers that can use any given license activation code or product key, this error code can arise when you have exceeded that limit. If you have a single-use license and have already entered the particular product key onto another machine, you may see this error come up during activation.

Both Error Code 0xC004C770 and Error Code 0x803FA071 arise from the same problem and the same steps can be used to resolve both error codes.

Solution

Error Causes

Error Code 0xC004C770 is likely to appear on your screen during activation of Windows 10 if you or anyone else in your organization have already entered in the product key used on another computer. If you have a multiple-use license, the product key that you are entering may already have been used for the maximum number of computers allowed under that license.

Further Information and Manual Repair

There are two basic methods for addressing the issues associated with Error Code 0xC004C770. These methods can easily be implemented by anyone who is comfortable interacting with the Windows Store from their computer, which makes the resolution of this particular error code fairly simple and straightforward.

If you are unable to complete the steps below or Error Code 0xC004C770 has not been resolved after following the guides below, contact a Windows technician who is familiar with the Windows 10 activation process to assist you in the process. You can also get in touch with the Windows technical support team to assist you in the process if needed.

Method One: Purchase A New Product Key from Windows

If you have already used the product key on another computer or have used it on the maximum number of allowed devices, you may need to purchase an additional product key for the computer with Error Code 0xC004C770. Product keys can be purchased physically from a retailer that sells Windows 10 software licenses or purchased directly from the Windows store.

To purchase a new product key directly from the Windows Store, follow the steps below:

• Step One: Select the Windows start button at the bottom of your toolbar. Click on “Settings,” then select the option for “Update and Security.”
• Step Two: Click on the “Activation” option.
• Step Three: In the menu that appears, choose the option to “Go to Store” and follow any on-screen instructions to finalize a purchase of the Windows 10 software and product key.
• Step Four: Use the new product key to complete the installation and activation of the Windows 10 software on your computer.

If you are unable to see the “Go to Store” option when you reach the “Activation” page, you may not be set as an administrator of your machine. In this case, get in touch with the support personnel from your company to complete the purchase, installation, and activation process on your computer.

Method Two: Attempt to Finish Activation via Phone

For users who have changed out parts of their computer’s hardware, like putting in a new motherboard or activating a new hard drive, you may have more success if you attempt activation through a phone.

In order to activate your copy of Windows 10 from your phone, follow the steps below:

• Step One: On your mobile device, open up the search box from the taskbar.
• Step Two: In the search box, enter the phrase “SLUI 04.”
• Step Three: Select the “SLUI 04” option that appears.
• Step Four: Follow the directions given on the screen to complete the activation process for your copy of Windows 10.

As with any error code resolution, if the methods above are not successful or if you are not comfortable with your ability to successfully complete the steps above, get in contact with a qualified professional who is trained in the Windows 10 activation process to assist you or download a powerful automated tool to get the job done.

If you’re having some problem browsing multiple websites on the Firefox browser on your Windows 10 computer, then this post might be of help. One of the most common problems you could encounter in Firefox is mostly related to HTTPS and one of them is the MOZILLA PKIX ERROR MITM DETECTED or ERROR SELF SIGNED CERT or SEC ERROR UNKNOWN ISSUER error which means that Firefox was unable to trust certificates issued on secured websites. If you encounter the MOZILLA_PKIX_ERROR_MITM_DETECTED error in Firefox, this indicates that something in your network or system is interrupting your connection and injecting certificates and when that happens, Firefox won’t trust it. In such cases, one of the culprits is malware. Malware will try to replace a legitimate certificate with its certificate. Another cause is security software where it keeps a tab on a secure connection and creates a false positive, for instance:

“In Microsoft Windows accounts protected by Family Safety settings, secure connections on popular websites like Google, Facebook and YouTube might be intercepted and their certificates replaced by a certificate issued by Microsoft in order to filter and record search activity.”

And if you are connected to a corporate network, there might be a monitoring/filtering product that could be replacing certificates. Moreover, there are also users who reported getting this issue when they use the Nightly version of Firefox. And if that’s the case, you have to try accessing secure websites using only the stable build especially when it comes to payments. However, if you are not doing that, then here are some options you need to check out.

Option 1 – Try turning off HTTPS Scanning on your security and antivirus programs

Each security-based software has a security option that allows you to turn off the HTTPS scanning functionality. They may be available under different names such as HTTPS Scanning, Scan SSL, Show safe result, Do not scan encrypted connections, etc. Find what is applicable for your security or antivirus software and then try turning it off temporarily and see if it helps in fixing the MOZILLA_PKIX_ERROR_MITM_DETECTED error in Firefox.

Option 2 – Try to disable security.enterprise_roots.enabled

The next thing you can do if the first option didn’t work is to disable security.enterprise_roots.enabled which is an HTTPS certificate check on Firefox. Note that this is not recommended but you have to at least try in order to fix the error.

• Open Firefox and then type “about: config” in the Firefox address bar and hit Enter.
• After that, if an info message appears, confirm it.
• Next, search for the security.enterprise_roots.enabled preference and once you found it, double click on it.
• Then change its value to true and restart the Firefox browser once. This will import all the custom certificates from the other security software into Firefox. As a result, it will make sure to mark those sources as trusted and you won’t get the MOZILLA_PKIX_ERROR_MITM_DETECTED error.

There are times when you try to open a file, an executable file for instance, but were unable to do so since you encounter an error in an Open File – Security Warning dialog box that says, “This publisher has been blocked from running software on your machine, You must unblock this publisher to run this software”. This kind of error is most likely thrown by your operating system because it considers the file to be unsafe and could potentially harm your computer. However, if you’re certain that the file is harmless, read on as this post will walk you through fixing the error so you can open the file without getting an error. There are various options you can check out to fix the error. You may run the program using Command Prompt or unblock it using File Properties. You could also try turning off SmartScreen or use the unblock file command in Windows PowerShell.

Option 1 – Try running the program via Command Prompt

• Tap the Win + R keys to open the Run dialog box and type “cmd” in the field and hit Enter to open Command Prompt.
• Next, tap the Shift key and right-click on the program or the executable file, and then select the “Copy as path” option.
• After that, paste this path in the Command Prompt window and tap Enter to open the program.

Option 2 – Try to unblock the file using File Properties

• Right-click on the file you were trying to open and select Properties.
• Next, click the Unblock button and then click on the Apply and OK buttons.
• You should now be able to open or access the file without getting the error.

Option 3 – Turn off SmartScreen

The next thing you can do is to turn off SmartScreen temporarily. All you have to do is open the Windows Defender Security Center and from there, go to the App & browser control section. After that, click on the radio button for Off under Check apps and files. Once you’re done, try opening the file again. Don’t forget to enable the SmartScreen back on.

Option 4 – Try to use the Unblock-File command in PowerShell

You might also want to utilize the Unblock-File command in Windows PowerShell as it will unblock the file so you can open it. To execute this command, follow these steps:

• Tap the Win + X keys and then click on Windows PowerShell.
• After opening PowerShell, type or copy and paste this command and tap Enter to execute it: Get-ChildItem -Path 'C:Users<username>Downloads' | Unblock-File
• The command you entered will unblock all the files in the Downloads folder, assuming that’s where the file you were trying to open is stored. If it’s not, then replace the path with the path where the file is located. Take note to also replace “<username>” with your Username.
• Now check if the file has been unblocked by accessing or opening it.