Windows Update failed, error 0x80240034

If there are any third-party add-ons or proxy settings that interfere with your Windows 10 computer’s internet connection, then you will most likely encounter a problem where you see an error message saying, “Website is online but isn’t responding to connection attempts” when you try to run the Network Adapter troubleshooter. Like pointed out, this kind of error can be caused by some proxy settings that prevent the connection. On the other hand, it could also be caused by some third-party add-ons. To fix this error, read on as this post will guide you on what you can do to fix it. You can try to turn off the proxy settings or disable the add-ons on your browser. You can also try resetting both the TCP/IP and DNS as well as reset the network. For more details, refer to the options provided below.

Option 1 – Try to turn off the proxy settings

There are some users who reported that they’ve fixed the problem after they’ve disabled the use of a proxy server using the built-in way. Follow the steps below to disable the proxy server.

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 2 – Try disabling the add-ons or browser extensions

The next thing you can do to fix the problem is to disable any extensions or add-ons on your browser. For instance, if you are using Chrome, here’s what you have to do:

• Open Chrome and press Alt + F keys.
• Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
• Click the Recycle bin and select Remove.
• Restart Chrome and press Alt + F keys again.
• Proceed to On Startup and mark Open a specific page or set of pages.
• To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Option 3 – Try to update the Network Adapter Driver

Follow the steps below to update your Network Adapter Driver:

• 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.
• From there, expand the list of all the network drives and update each one of them.

Note: If updating the network drivers didn’t help in fixing the problem, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.

Option 4 – Try to reset the TCP/IP and the DNS cache

As you know, the TCP/IP or the Internet Protocol is the most important thing if you want to use the internet on your computer. That’s why if it ends up getting corrupted, you need to reset the TCP/IP to fix the problem. To reset TCP/IP, refer to these steps:

• In the Windows start to search, type “command prompt” and right-click on Command Prompt from the search results.
• Then select the “Run as administrator” option to open Command Prompt with admin privileges.
• After that, execute this command: netsh int ip reset resettcpip.txt
• Next, execute this second command: ipconfig /flushdns
• Once it’s done, exit Command Prompt and restart your computer and then check if the error is now fixed.

Option 5 – Try to reset the Network

You can also try to perform a Network Reset to resolve the problem. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

Error 2 - What is it?

Error 2 is a typical Battle.net error code. Battle.net is a desktop app that allows you to access all Blizzard games. It enables Blizzard gamers around the world to play multiplayer matches together, online. Error 2 occurs when you are unable to connect to the login server. This error code is displayed in the following format:

Battle.net Error #2: Unable to connect. Please try again later. If the problem persists, please contact technical support.

Solution

Error Causes

Error 2 may be triggered due to several reasons. These include:

• Program conflict
• Security software conflict
• Bad DNS cache entry
• Issues with network devices
• Viruses and malware
• Registry corruption

Error 2 is not a fatal error like the blue screen of death error codes. However, this error may hamper your ability to play Blizzard multi-player games. To overcome this problem it is advisable to fix error 2 immediately.

Further Information and Manual Repair

To resolve this error you don’t need to spend hundreds of dollars to hire a professional and get it fixed. Here are some of the easy do-it-yourself methods to resolve this error on your PC. These methods require no technical expertise or knowledge. Let’s get started:

Method 1

Error 2 may sometimes pop up on the screen due to program conflict. This happens when you have Blizzard games and other programs running on your PC at the same time. In such a situation, it is advisable to close background applications to resolve conflicts between Blizzard games and other programs running in the background.

Method 2

Sometimes antivirus programs and firewalls can also hinder and interfere with the game’s connection to our servers. In this event, the best way to fix the error is to temporarily uninstall your security software.

Method 3

If error 2 is triggered by the issues with network devices then simply power cycle network devices to re-stabilize the connection. Power cycling router and modem allow you to reset and reestablish a connection to your ISP. To do this, shut down the computer then power down/unplug the router and the modem. Allow the modem to sit for 60 seconds, unplugged. Then turn it on and allow it to boot up till the front panel connection lights show a steady connection. Now turn on the router and do the same as you did with the modem. After that start the computer and allow it to completely boot up. Now try logging on to the Blizzard gaming server. This will hopefully resolve the issue.

Method 4

Viruses and malware infections can also trigger error 2. In such a situation install an antivirus and remove all malicious programs infecting your PC.

Method 5

If the cause of the error is related to registry corruption, then it is advisable to download Restoro. This is a user-friendly PC Fixer with a registry cleaner. The registry cleaner removes all unnecessary and obsolete files corrupting the registry, cleans and repairs the corrupted registry in a few minutes. Click here to download Restoro on your PC to resolve error 2. For further information you may be interested in these similar issues:

One of the most common ways cybercriminals use to inject suspicious code into devices is by tricking users into installing a malicious program on a targeted device. Oblivious users are vulnerable to such tricks, which is why Microsoft has been working hard in the background to address this issue. Recently, Microsoft announced the availability of a sandboxed version of Windows 10 that runs inside Windows 10 in order to isolate suspected software to run inside it and protect the system from potential threats. This Windows Sandbox feature is a new feature that keeps your computer secure. It is a virtual disposable environment that you can enable. So if suspect any software of being malicious, you can run this software in an environment and ensure that it won’t interfere with any normal processes and would not jeopardize files on your computer. To simply put it, “Windows Sandbox is a new lightweight desktop environment tailored for safely running applications in isolation”. So if the Sandbox is closed, all the residual files, software, and other data are deleted permanently. To enable Windows Sandbox, refer to the instructions provided below. Step 1: You have to make sure that you are running either Windows 10 Enterprise Editions or Windows 10 Pro and that your computer is running build 18305 or newer. Step 2: After that, you have to enable Virtualization to let another instance of Windows 10 running in Sandbox mode. Step 3: Next, search for Windows Features on and off in the search box and then select the appropriate entry. Step 4: From the list, go to the mini window and check the Windows Sandbox and then click on OK. Step 5: Afterwards, in the Cortana Search box, search for “Windows Sandbox” and select the related entry to run it in an elevated window. Step 6: Then from your main computer (host), copy the executable file and paste it inside the Windows Sandbox environment. Step 7: Now run the executable file in the Sandbox environment and use it as you normally do. Step 8: Once you’re done, close the Windows Sandbox application and as mentioned, every data regarding the executable file and the temporary environment will be deleted. Step 9: And for the sake of safety, ensure that there are no modifications made to the host because of the executions in the Sandbox environment. You have the option to contact Microsoft for feedback related to Windows Sandbox. You can use the traditional Feedback Hub if you have any suggestions or any issues. Just fill in the appropriate details and select Windows Sandbox for the feature category under the Security and Privacy section. And if you have any issues related to the execution of and within Windows Sandbox, simply choose “Recreate my problem” then select Start capture to reproduce the issue, and once you’re done, select Stop capture.

Oobesttings error is the blue screen of death error caused by some faulty settings inside the Windows registry. The good news is that this is not a hard error to fix and if by any chance you are one of the unfortunate people getting this dreaded annoying error, please do keep reading because we have several things that you can do in order to eliminate this issue from your computer.

Reboot your system

This is the easiest and straightforward solution and can work sometimes since if the system has not been properly rebooted in a while memory could be filled with various processes and it can trigger oobesettings error. A simple restart of the system can solve the issue by decluttering files and emptying memory.

Scan and repair with SFC

If rebooting the system was not helpful and sadly you still receive an error then let's scan and repair system files by using Windows built-in tool SFC. In order to use this, we will have to run the command prompt in elevated administrator mode. Follow instructions closely. First click on the search icon on the taskbar and type in CMD The command prompt will show as a search result, on the right side click on Run as administrator. Once it opens type in following command: sfc /scannow and press ENTER Wait for the process to finish completely and restart your device after.

Repair the system registry

If the SFC scan has not repaired the issue then we will move to the next solution that involves repairing the system registry itself. Please note that you need to follow step-by-step for provided instructions since playing with the system registry can cause some serious issues if not done properly and can even render the system unstable. That being said, let's begin: Press ⊞ WINDOWS + R to open Windows run dialog Type inside regedit and press ENTER Inside registry editor locate the following key: HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Session Manager/ Memory Management. and click on it to see properties Inside the properties right-click on CommitLimit value and choose delete. Confirm with yes. Close registry editor and reboot your computer.

Reset Windows 11

If even clearing key inside the registry editor has not helped next step would be to reset the system itself. Press ⊞ WINDOWS + I to open Windows settings and click on System on the left. Inside on the right part click on Recovery In recovery click on the button next to Reset this PC that says Reset PC Choose between keep my files and remove everything (a better option is remove everything, but be sure that you have all your files on a separate drive backed up) Choose between Cloud Download or Local reinstall. Click on next to confirm choices and after that on Reset to start the reset process. Follow onscreen instructions until it is fully done.

If you were trying to run Windows Update or activate Windows Firewall or download from the Windows Store but encounter the Windows Update Error 0x80070422 instead, read on as this post will show you how you can resolve the problem. This kind of Windows Update error occurs when the Windows Update or WUAUSERVE is not started or when the Background Intelligent Transfer Service or BITS can’t be started. It could be that they are disabled or because they have no enabled devices associated with them. Whichever the case is, you can check out the options given below to fix the Windows Update Error 0x80070422 and make sure that you create a System Restore point first before you start.

Option 1 – Check the status of some Windows Update Services

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter or click OK to open Services.
• From the list of Services, look for the following services and make sure that their Startup type is as follows:
  • Windows Update – Manual (Triggered)
  • Background Intelligent Transfer Service – Manual
• After that, check if the Service status of the listed services above is set to Running. If they’re not, click on the Start button to start these services and then check if you can now enable the Windows Update service or not.

Option 2 – Try to disable IPv6 in the Network Center

You might also want to disable IPv6 in the Network Center in order to fix the Windows Update Error 0x80070422. How? Follow these steps:

• Tap the Win + X key combination on your keyboard and click on Network Connections.
• This will open the Network Connections section under the Setting app. From there, click on the Network and Sharing Center link located at the right side of the panel which will open a Win32 version of the Windows settings known as Control Panel.
• In the Control Panel, click on the network your computer is connected to.
• A mini window will appear and in that window click on Properties which will open another mini window that will provide a list.
• From this list, uncheck the option that says, “Internet Protocol Version 6 (TCP/IPv6)”.
• Now click on OK and close all the other windows and see if it fixes the Windows Update error.

Option 3– Run the Windows Update Troubleshooter

If disabling IPv6 didn’t work, you could also try running the Windows Update Troubleshooter as it could also help in fixing any issues related to Windows Update including the Windows Update Error 0x80070422. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 4 – Try running the DISM tool

You can also try to run the Deployment Imaging and Servicing Management or DISM tool to fix the Windows Upgrade error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Run Microsoft’s online troubleshooter

Running Microsoft’s online troubleshooter might also help you fix the Windows Update Error 0x80070422. This online troubleshooter is known to help in fixing Windows Update errors, it scans your computer for issues that might be causing the problem and then fixes them automatically.

What Is 0x80004001 Error Code?

0x80004001 is an error code that Windows users encounter quite commonly.

This error usually occurs when users try to update an old Windows application or attempt to run a certain application. When this error appears on the screen, the system automatically restarts to stop further processing. The error results in a blue screen after the system boots.

This blue screen is known as the Blue Screen of Death.

Error Causes

There are different files in the Windows operating system responsible for its smooth functioning. Sometimes problems like viruses or incorrect register entries corrupt or damage these files. This is when this 0x80004001 error appears.

Simply put, some of the most common causes that trigger 0x80004001 error are listed below as follows.

• Corrupt or damaged EXE, VXD, DLL files of Windows
• Incorrect entry of registry files
• Presence of viruses or malware in the system
• Corrupt or damaged system files
• Unfinished application installation

Irrespective of what causes this error, it is of utmost importance to troubleshoot it as soon as possible.

Further Information and Manual Repair

While there are several ways of troubleshooting this error, the two most useful approaches have been listed below as follows.

• This solution is for advanced users. Start your system and log on to it as the administrator. Click on the Start button. Now select All Programs->Accessories->System Tools. Finally, click on System Restore. In a new window, select the option “Restore My Computer to an Earlier Time”. Now click on Next. A list of restore points will be displayed. Choose the most recent restore point from this list and click “Next”. Now click next on the confirmation Window again. Once the restoration is finished, the computer will restart itself and you will observe that the error no longer appears.
• This solution is for beginner or novice users. Download a 0x80004001 error repair utility available online. Install this program on your computer and use it to scan for the error in your system. When the scan completes, find if any feature allows you to fix errors. If yes, click on it. Now restart your computer again. You will notice that the virus has disappeared. It is a good idea to use error repair utilities because they scan the system, diagnose the error and then perform the repair.

Use any of the methods listed above to get rid of the 0x80004001 error once and for all.

If you suddenly encountered an error saying, “The application failed to initialize properly (0xc0000005)” when you are using an application on your Windows 10 computer, read on as this post will provide you some potential fixes that could help you fix the error. You can encounter the “The application failed to initialize properly (0xc0000005)” error on many applications such as VLC, Chrome, Word, and any other executable files and even the operating system files. When you get this kind of error, you will see the following error message:

“The application failed to initialize properly (0xc0000005). Click on OK to close the application.”

This kind of application error can occur due to several reasons which include damaged installation of the application or system files may have gotten corrupted or damaged. It could also be caused by a malware infection. There are a couple of suggestions provided in this post to help you resolve the error. You can try to run both a System File Checker scan and the DISM tool or reinstall the problematic application or repair-install Windows 10 as well as run a malware scan. Note that the options provided below do not have to be followed in sequence.

Option 1 – Try to run a System File Checker scan

As mentioned, the error could be due to corrupted or damaged system files and one of the ways you can fix that is by running a System File Checker or SFC scan on your computer. To do so, follow these steps:

• In the Windows Start Search, type “command prompt” and right-click on Command Prompt from the search results, and then select the “Run as administrator” option.
• After opening Command Prompt with admin privileges, type the “sfc /scannow” and tap Enter to execute it.
• Once the scan is finished, restart your computer and see if the “The application failed to initialize properly (0xc0000005)” error is fixed or not.

Option 2 – Run the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the application error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 3 – Try reinstalling the application

You might also want to uninstall the application and download its latest working version and then install it back again. Note that when you do this, you will lose all your app data.

Option 4 – Try to repair install Windows 10

• First, you have to click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either Nothing (clean install) or Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings”.

Option 5 – Try scanning your computer using Windows Defender

It is possible that your computer is infected with malware which could be why you’re getting the “The application failed to initialize properly (0xc0000005)” error. Thus, you need to scan your computer using Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.

If VirtualBox suddenly displays a black screen without any text or mouse cursor when you are trying to boot a guest operating system, then read on as this post will guide you in fixing such an issue. This black screen occurs when Windows 10 failed to provide a specific setting that VirtualBox requires. Consequently, you will not be able to install or use any guest operating system in VirtualBox even if your PC has virtualization support, the best thing you can do now is to fix this black screen issue. There are two ways you can fix this black screen in VirtualBox, you can either try to disable Hyber-V or disable 3D Acceleration. For more details, refer to each one of the given options below.

Option 1 – Try to disable Hyper-V

Hyper-V is a built-in virtualization tool available in Windows that helps users in creating a virtual machine as well as install a guest operating system without using any third-party tool like VMware, VirtualBox, and many more. However, the problem with this virtualization tool is that some systems cannot run it and VirtualBox simultaneously which is most likely why the screen abruptly turns into black. Thus, you have to disable Hyper-V to resolve the problem. How? Refer to these steps:

• In the Start Search, type “Turn Windows features on or off” and then click on it from the results.
• Once you’ve opened the Windows Features window, remove the checkmark from the Hyper-V box.
• Click the OK button and then restart your computer.
• Now try to use VirtualBox again and see if the problem is fixed.

Option 2 – Try to disable 3D Acceleration

The guest operating system will use the host computer’s GPU to render 3D graphics if you enable the 3D Acceleration for the virtual machine. To simply put it, it will enhance the graphics of the virtual machine and will let you use 3D graphics. Although it may seem nice, it can actually cause the black screen to appear as well so you might have to disable it to isolate the problem. In fact, a lot of operating systems have failed to use the 3D Acceleration for the guest operating system because of this black screen issue. To disable it, follow these steps:

• Open VirtualBox on your computer and select the virtual machine.
• Next, click on the Settings button and go to the Display section.
• After that, look for a checkbox named “Enable 3D Acceleration” located on your right-hand side and then uncheck it.
• Save the changes you’ve made and reboot your PC and see if you can now run the virtual machine without any problem.

If you have encountered the “YOU ARE NOT AUTHORIZED TO ACCESS THIS WEB PAGE AS PER THE DOT COMPLIANCE” error while trying to visit a website using either Firefox or Chrome browser, then read on as this post will guide you on how you can fix this error. Apart from this error message, you might also see an alternative message that says, “Web Page Blocked! The page you have requested has been blocked because the URL is banned as per the Government Rules”. When you get any of the aforementioned error messages when visiting a website, this means that it has been marked. It is mostly recommended to not access the site as it might be blocked for some illegal reason. However, if you are certain that the website is legitimate and safe and you believe that it has been blocked by accident, then you can check out the given methods in this post to unblock and access the blocked or restricted website. There isn’t actually a straightforward way to remove the restriction on the website or the DOT compliance. And it won’t matter what browser you use as you will still get the same error. Thus, the best way to go about this issue is for you to bypass the ISP restriction. But before you proceed, keep in mind that the ISPs (Internet Service Providers) can block any website when a request goes through their servers.

Option 1 – Try changing the DNS

If the request to access the website does not go through the ISP’s DNS server, you might have a chance in accessing it by changing your DNS settings. You can try using the Google Public DNS.

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 2 – Try to install a Proxy Extension

You could also try installing a Proxy extension or Proxy software as it could also help you access the website you are trying to open as it allows you to access the blocked websites by routing the request through their server. Aside from that, it can also hide it from ISPs to make them look like the content is coming from the proxy servers.

Option 3 – Try using a VPN connection

There are instances when the network that your computer is logged on might have blocked your access to the website you are trying to open and so to fix it, you can try to use a VPN connection. There is a lot of free VPN software out there but just make sure that you install a trusted one. Once you’ve connected using VPN, try to open the website again and see if you can now access it.

Option 4 – Check the Windows Host file

You can also try to cross check the Windows Hosts file to find out if the website you are trying to open has been blocked because if it is, then it’s no wonder why you’re getting the ERR CONNECTION TIMED OUT error in Chrome. There are instances when some third party application modifies the file and add some websites to the block lists. So if the website is indeed blocked, you need to remove it from the list.

Option 5 – Try to contact your ISP

If none of the options given above worked, then you can try to contact your ISP as there are times when DOT clears a website, the ISPs are still blocking it. Thus, it’s probably better if you reach out to them and ask them to unblock the website from their end.

What is the Error 421?

Error 421 is a common SMTP (Simple Mail Transfer Protocol) Outlook error message. MS Outlook is one of the best and popular email applications widely used by PC Windows users for sending and receiving emails within and outside workplaces. It is most commonly used in offices by professionals for faster communication. This error may occur while sending and receiving emails on the server. The error 421 messages is displayed in either of the following formats:

“An unknown error has occurred: Server error 421” "Could not send your message. Error 421" 421 4.2.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html 421 4.3.1 Out of disk space for temp file 421 4.3.2 All server ports are busy 421 Downstream server error 421 Fork failed 421 Greylisting enabled, please try later “An unknown error has occurred. Subject ‘Testing’, Account: ‘pop.charter.net’, Server: ‘mail.charter.net’, Protocol: SMTP, Server Response: ’421 Message rejected’, Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67”

Solution

Error Causes

Some common causes for this critical Outlook error are:

• PST storage size exceeds 2GB file size
• Improper ISP settings
• Slow internet connection
• PST file corruption
• Trojan attack and viral infection

This is a critical Outlook error that should be resolved timely. If you delay, it may cause you a great deal of inconvenience. The error code 421 hampers your ability to access your email account, send and receive emails, add new contacts, view emails, calendar entries, and journals. In other words, it just brings your email activities to a standstill locking you out of the account.

Further Information and Manual Repair

To resolve this error code on your system, you don’t always have to hire a professional or call the network personnel to do the job. It may be a critical error but the good news is that it is quite easy to fix. Even if you don’t have technical expertise, you can still repair it. Here are some of the best methods to repair this issue on your system:

1. Change the Server Settings to its Maximum Limit

Try changing your server settings. Here set the inbound connections limit at the maximum limit.

• To do this, open the Microsoft Exchange Server Administrator utility. The access path of this utility will vary depending on the installation procedure used to set up Exchange Server.
• Once you open the MS Exchange Server Administrator utility, click the ‘Connections’ icon in the left side navigation pane. Now double click the internet mail service icon in the right side pane. As you click it, the Properties window will open.
• Now click the ‘Connections’ tab in the Properties window and then click the ‘Advanced’ button. This will open the configuration window.
• Here reset the number for ‘Maximum Number of Inbound Connections’ to a high number, its maximum limit. After changing the settings, close all open Exchange Server Administrator program windows to successfully complete the process.

After the process is complete, try accessing your Outlook email account again; if it works, then that’s great the error 421 is resolved. However, if it doesn’t, then the problem could be related to viral infection.

2. Download a PST Repair Tool

If the cause of the error is PST files corruption, then not only will you be locked out of your email account, you are also at risk of losing all the data stored in your email account. However, the best way to resolve the error and ensure full data recovery is to download a reliable PST repair tool. By running a PST repair tool on your system, you can resolve the error 421 right away. It recovers your data, repairs corrupt and damaged PST files.

3. Scan Your PC with Restoro.

If viral infection and Trojans are causing the error 421 to pop up on your system, then it is recommended to download and scan your PC with Restoro. This is an advanced, intuitive, and user-friendly PC fixer. It is not just an antivirus but also a system optimizer and a registry cleaner. Unlike common antivirus software that only removes viruses and simultaneously slows down the system’s speed, Restoro removes all types of malicious software on your PC including malware, spyware, Trojans, and viruses, and also boosts the speed of your PC significantly. It is safe, easy to operate, and a quick fixer. It is compatible with all Windows versions. Click here to download Restoro and resolve error 421 today!