Fix the MEMORY 0x000000FC Stop Error

One of the most sophisticated Artificial Intelligence or AI assistants there is in the market is Cortana. However, no matter how sophisticated this AI assistant may be, there are still times when you encounter issues with it. So if your Cortana is not connecting to the internet, worry not for this post will guide you in fixing the problem. This connection issue in Cortana might have something to do with the settings, network connectivity, or your Microsoft account. In addition, it could also be that the Firewall or antivirus program interferes with its connection. Whichever the case is, here are some possible solutions that could help you resolve the problem.

Option 1 – Try to power cycle the modem, router, and computer

• Connect the modem, router, and the PC hard-wired and then switch all of these three devices off.
• Turn on the modem and wait for 30 seconds.
• Turn on the router and wait for 30 seconds as well.
• Finally, turn on the computer and check if you can now successfully connect to the internet.

Option 2 – Check if your router or ISP is properly working

Since the basis for this issue is that Cortana is not connecting to the internet even though you are able to access websites using your browser, you might want to check your router or ISP (Internet Service Provider) and see if they’re functioning properly.

Option 3 – Try changing your internet connection

You can also try changing your internet connection and see if it fixes the problem. If you are using Ethernet, you can try connecting to a Wi-Fi connection and see if Cortana is able to connect or not.

Option 4 – Try to run the Search and Indexing troubleshooter

You might also want to run the Search and Indexing troubleshooter in Windows 10 as it checks whether the settings for Cortana are in place and automatically corrects any issues if the update or software installation has changed the settings. To run it just click on the Start button and select Settings > Updates and Security > Troubleshoot. From there, select the Search and Indexing Troubleshooter. Note: You can also run the Network Troubleshooter as it can also help in resolving the issue especially if the problem is in the network.

Option 5 – Try to remove Proxy

Removing the Proxy might also help you in fixing the connection issue in Cortana. Here’s how you can do it:

• 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 6 – Verify your Microsoft account

In some cases, Cortana might not be able to connect to the internet because your Microsoft account is no longer verified. This usually happens when you use a two-step authentication system with your Microsoft account. To verify it, just open Settings and click on Accounts. After that, check if you have a Verify hyperlink under your Microsoft account or not then click on Verify. Afterward, follow the next on-screen prompts to verify your Microsoft account. Once your account is verified, restart your computer.

Option 7 – Try resetting Cortana

• Open Cortana and go to the Settings section where you’ll see the “Turning off Cortana clears what Cortana knows on this device, but won’t delete anything from the Notebook. After Cortana is off, you can decide what you’d like to do with anything still stored in the cloud” option. Turn this option off.
• Restart your PC.
• After your computer boots, launch Cortana again and check.

Option 8 – Try to reinstall Cortana

If none of the options given above works, you must consider reinstalling Cortana.

• First, right-click on the Start button and click on the Windows Powershell (Admin) option from the list.
• Next, type the following command and hit Enter to execute it:

Get-AppXPackage -Name Microsoft.Windows.Cortana | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}

• Restart your computer and check if Cortana is now able to connect.

Windows has a lot of built-in tools that help you fix tons of system-related issues. One of them is the System File Check which is the tool you can use to conveniently replace potentially corrupted or missing system files with good ones. But what happens when it does not work? Well, you’ve come to the right place as in this post, you will be guided on how you can replace a corrupted single Windows system file manually with a known good copy of the file if the System File Checker scan is not working. When you encounter this issue with the System File Checker, it will be unable to replace the corrupted system files and returns an error message instead. And so to fix and replace corrupted system files in your Windows 10 computer without the help of System File Checker, you can refer to the instructions provided below. Step 1: First, you need to open the log files listed below and identify which particular file has been corrupted:

• %userprofile%Desktopsfcdetails.txt
• Log %WinDir%LogsCBSCBS.log

Step 2: You will see all the details on the given log files. Once you find out the name and the path of the file, you have to take ownership of this corrupted system file. Step 3: To take ownership of the corrupted file, you need to pull up Command Prompt by tapping Win + R keys on your keyboard and then type “cmd” and tap Enter. Step 4: After opening Command Prompt, type and enter the command below to execute it:

takeown /f FileNameAndPath

Note: In the given command, “FileNameAndPath” represents the name and the path of the corrupted file. For instance, the corrupted file is named “wuapi.dll”, then you need to type “takeown /f C:/Windows/System32/wuapi.dll” Step 5: Next, you need to grant administrators full access & control to the corrupted file and you can do that via Command Prompt again. Step 6: In the elevated Command Prompt, type and enter the following command to execute it:

icacls FileNameAndPath /GRANT ADMINISTRATORS:F

Note: We’re going to use the wuapi.dll again as an example. So the command should be like this: icacls “C:/Windows/System32/wuapi.dll /grant administrators: F”. Step 7: Now all that’s left to do is replace the corrupted system file with a good copy from a trusted source. Once you have a copy, open an elevated Command Prompt again and execute the following command:

copy NewFileLocation FileNameAndPath

Note: In the command given above, the “NewFileLocation” is the location where you have saved the copy of the file. For instance, if you’ve saved it on your desktop, this is how it should look: “copy C:/Users/<username>/Desktop/wuapi.dll C:/windows/system32/wuapi.dll”

Distributed Component Object Model or DCOM is a module on Windows computers that allows computers to run programs over a network to another computer. It is a software component from Microsoft that allows COM objects to communicate with each other while that program is remotely running over the network. The COM Model is another extension of the DCOM model which both work together in order for the intended task to be executed. To make this module work, there are three components needed such as the Class Identifier or CLSID, the Programmatic Identifier or PROGID, and the Application Identifier or APPID. However, DCOM does not always work as expected as it could still encounter some errors. One of them is error 1084. Because of this error, the execution of programs in a remote computer on the network would be interrupted. So if you encounter the DCOM error 1084 when you try to start a service like running the DISM tool or in other scenarios on your Windows 10 computer, then this post could help you. Refer to the instructions given below to start troubleshooting the problem.

Option 1 – Try checking the status of DCOMLAUNCH Service or DCOM Server Process Launcher and its 3 dependencies

The DCOM Server Process Launcher service launches both COM and DCOM servers in response to object activation requests. This is why if this service is stopped or disabled, the programs that are using COM and DCOM won’t properly function. So you need to make sure that the DCOMLAUNCH service is running.

• In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “services.msc” in the field and hit Enter to open the Services Manager.
• Next, check the following services:
  • DCOM Service Process Launcher
  • Background Tasks Infrastructure Service
  • Local Session Manager
  • Remote Procedure Call (RPC)
• Then right-click on each one of the services and click on their Properties.
• After that, select Automatic from the drop-down menu of Startup Type and make sure that all the aforementioned services are Running.
• Now click OK for each one of the services.

Option 2 – Troubleshoot the problem in a Clean Boot State

There are instances that some conflicting programs installed in your computer might be the one that’s causing DCOM error 1084. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

Option 3 – Try to use the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the DCOM error 1084. To repair these corrupted system files, you can run the DISM commands:

• Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
• After that, input each one of the commands listed below sequentially to execute them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

• Once you’ve executed the commands given above, restart your computer and check if the DCOM error is now fixed.

Option 4 – Reset your computer

• Tap the Win key or click on the Start button located in the Taskbar.
• Then click on the Power button at the bottom right portion of the screen.
• Next, press and hold the Shift key on your keyboard and then click on Restart. This will restart your Pc into the Advanced Startup options.

Note: Once you have access to the Advanced Startup options, you have to go to the setting which allows you to Reset your Windows 10 PC. All you have to do is select Troubleshoot > Reset this PC to reach the following screen Afterward, select either the “Keep my files” option and then proceed to the next on-screen instructions that follow to reset your Windows 10 computer without losing your files.

Error Code 0x80073b01 - What is it?

The 0x80073b01 is an error message that often pops up on the screen when you run Windows Defender. Windows Defender is an antispyware by Microsoft integrated into Windows Vista and Windows 7. The error code 0x80073b01 is considered to be a critical Windows error which must be fixed immediately. This error code locks you out of Windows Defender thus putting your computer at risk potential security loopholes in the Windows environment such as notorious software like spyware, adware, and viruses. This is dangerous especially if you have confidential data saved on your PC as it can be exploited easily if you don’t remove such malicious software the right way. This can lead to data breaches, cybercrime, and the worst-case scenario can be identity theft. Error code 0x80073b01 symptoms include:

• Sluggish pc performance,
• Problems during software installations
• Beeping sounds
• Unexpected shutdowns
• Screen freeze

Solution

Error Causes

The error code 0x80073b01 occurs when Windows Defender gets damaged due to misconfigured files and registry corruption. It is advisable to fix this error right away to avoid serious damages.

How to Resolve the Error Code 0x80073b01?

To repair the error code 0x80073b01 on your PC you don’t necessarily have to call a professional; you can fix it on your own with the help of Restoro. It’s very easy to use and does not require you to be technically sound. Besides, it can be downloaded for free thus helping you save hundreds of dollars that you are likely to spend on hiring a technician for the error code repair job. Restoro is the latest and a multi-functional system optimizer and a repair tool. This software is integrated with highly functional features that enable you to resolve almost all types of PC-related errors including the error code 0x80073b01. It includes powerful and value-adding features like registry cleaner, system stability detector, privacy error finder with anti-virus properties, and Active X and Class issues detector. With the help of its ‘registry cleaner’, you can easily scan for 0x80073b01 error codes on your PC. It offers in-depth registry cleaning scanning all the underlying causes of registry corruption that triggers 0x80073b01 error. The underlying cause for registry corruption is the accumulation of unnecessary and malicious files in the registry like junk files, temporary internet files, and invalid entries. Restoro with the help of its registry cleaning utility clears the clutter in seconds, frees up your disk space, and repairs the registry. And since the error 0x80073b01 hampered your ability to scan for viruses and spyware with Windows Defender, your computer may be exposed to serious data security threats by such malware. However, with Restoro you can remove malware from your system too. Restoro also functions as a powerful anti-virus. With the help of its privacy error detector, it scans for malicious viruses, adware and spyware on your PC ensuring that you are safe and protected from data breaches and cybercrime. This tool resolves the error 0x80073b01 successfully while repairing your registry and simultaneously optimizing the speed of your PC. It has a user-friendly interface and a simple design. There is absolutely nothing complex about it. All you have to do is download and install Restoro on your system and run it to scan for errors. After the scanning is complete, you will see a comprehensive and detailed error report specifying the number and the types of errors your PC is inflicted with. Now all you have to do is click on the Repair button to fix the issues on your PC including the error 0x80073b01 right away. Restoro is a safe and efficient tool that helps you resolve PC issues in seconds. For optimum results, it is advisable to run it on your PC regularly. This will help you keep the registry clean, PC error-free, reduce boot time, and ensure speedy PC performance. Click here to download Restoro on your PC today!

Error Code 0x80072efe - What is it?

Error Code 0x80072efe is a fairly common error code that generally occurs in Windows 10. It is most often associated with the process of performing updates using the Windows Update tool.

Common symptoms include:

• Inability to install or complete updates on your Windows machine
• Computer freezing as programs are run or started
• Inability to perform installations of downloaded programs
• Programs crashing or failing to work properly

While Error Code 0x80072efe can cause a number of frustrating issues on your device, the good news is that there are several methods that can be used to fix this error. The two most common methods are actually fairly easy to perform and do not require advanced tools or knowledge. However, if you don’t feel like you will be able to perform the necessary steps on your own, be sure to get in touch with a qualified computer repair technician to help you in the resolution of this particular error.

Solution

Error Causes

Two things are generally behind the appearance of Error Code 0x80072efe on a Windows device. The first is that one or more of your registry keys are not available, have been corrupted, or are not installed properly. The second is that necessary DLL files aren’t working properly within your machine.

However, other things can mimic these causes, which is why the two methods listed below will resolve the issue in most cases.

Further Information and Manual Repair

Fortunately, there are two resolution methods that can be used quickly and easily when Error Code 0x80072efe arises on your Windows computer. Neither of these requires advanced knowledge or skill, but if you don’t feel comfortable with performing these steps on your own, it is recommended that you contact a qualified computer repair technician in order to get assistance.

Here are the best ways to resolve Error Code 0x80072efe on your computer:

Method One:  Check Your Time and Date Settings for Accuracy

If your time or date has been set incorrectly, it can make your system logs appear to have incorrect information, which can lead to the appearance of Error Code 0x80072efe. Because this is the easiest thing to fix if it is indeed the problem that is making the error code appear, this should always be the first thing that you try when this error code arises.

In order to check your time and date settings, follow these simple steps:

• Step One: Make sure that you are logged into your computer as an administrator.
• Step Two: Click on the time and date listed on the lower right edge of your screen. If the settings are not correct, choose the option to change the time and date.

If method one has not successfully resolved Error Code 0x80072efe, you may need to attempt method two.

Method Two:  Check Your Firewall Settings During Updates

In some cases, your firewall can prevent your machine from accessing the information that it needs in order for the installation or update to go through correctly. If that is the case, you can follow a few simple steps to turn off your firewall, just while you install the update, and then turn it back on.

In order to do so, follow these steps:

• Step One: In the Start menu, choose the option to open the Control Panel.
• Step Two: Select the option for System and Security, looking for and clicking on Windows Firewall.
• Step Three: Turn off any private network firewalls.
• Step Four: Reboot your computer to apply the changes that you have made.
• Step Five: Re-attempt to run your Windows Update.

Note that if this method allows you to successfully bypass the error code, you’ll need to make sure to turn the firewall back on when you are finished. Even though it can interfere with the Update process, your firewall is still very important to your computer.

Method Three: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

Over time Applications change, some for the better some for worse. Some of them even stop receiving updates and are old and vulnerable. Sometimes standards change and some file types are not used anymore. Software evolves along with technology and that is good. Keeping old and useless applications inside your Windows is not so good. From various exploits to simply taking up space, maybe even slowing down OS it is always wise and good to clean your Windows from unwanted old applications. In this article, we will be mentioning some relics of old and providing you with an explanation of why you should remove them from your system if by any chance you still have them on it.

Silverlight

Silverlight was meant to be a competitor for Adobe Flash, it is a WEB framework that enables rich media content inside your WEB browser. The issue is that it is not developed anymore and today's browsers do not support it. The only browser that actually can support it is internet explorer which itself is not supported and how there is practically 0 content on today's modern WEB that will require Silverlight, it is safe and recommended to remove it.

Adobe Flash

Speaking of Adobe Flash, you should remove it as well. Flash has stopped receiving support as of January 2021 and browsers have dropped support for it and even blocked it due to security issues. However, there still might be some local installation of Flash itself inside Windows along with the old Shockwave player that stopped receiving support in 2019. You should remove them both.

JAVA

Now this one is tricky, by itself JAVA does not present any security issues since browsers do not support it anymore and the desktop version is not really slowing down your computer. This one has simply put just another media runtime that is not used and simply takes up space and resources. However if you have some applications that you do use that rely on it (I can really just think of JAVA Minecraft at this point) leave it of course but in any other case, it is just purely not needed.

Quicktime

While we are at media runtime and stuff that just simply is not needed, Quicktime is one of them. Now this Apple Video player and codec is still pretty developed and active in Apple’s iOS environment, Windows version has not been updated since 2016 and it was discovered that it contains some critical vulnerabilities. Uninstall it and if you need a player that could play MOV files, just use a VLC player that can play them without any separately installed codec.

uTorrent

This one, the same as CCleaner was once a good application, as a matter of fact, it was the best torrenting application. Sadly it has fallen from its grace very low, from getting tons of ads in its interface to findings in 2015 that code of torrent client was packed with a crypto miner that used system resources of an installed computer to mine crypto without user’s awareness. You should uninstall this torrent client if you would like to get your PC back and not provide it for cryptocurrency mining for the company that developed it. Use qBittorrent or TIxati, open-source and free ones that have everything needed for any torrenting needs.

Toolbars and Browser extensions

There are a lot of toolbars for browsers and extensions that are malicious in nature or simply not updated providing security issues. It is very advisable to remove this as soon as possible.

WinRAR

WinRAR has gained its large popularity solely for the reason that you could download it from the official site like shareware and use it forever. The license never expired and you could use it indefinitely. Sadly not much has been improved in the application itself and it is slowly falling out in its range of what it can do. There are better open source and free options today like 7zip, PeaZip, ZIPvare, and more that are working the same as WinRAR if not even better.

Windows and manufacturers Bloatware

Yes, applications that come bundled with Windows and with some laptops that include manufacturers made software for different tasks like its own specific media players, calculators, etc. It is known that these applications are not better than their open-source rivals and there are too many of them including some that you will probably never use. It is the same as buying a new phone bundled with tons of applications that you do not need, did not ask for, and do not use. Delete all of them. Considering Windows there are also some Store application like Candy Crush Saga demo and other are safe to remove if not needed. That’s it, our advice for old and not needed applications so you can keep your PC safe and fast.

The Windows update error 0x8024ce0e can happen as a result of improper installation, a virus, or due to file corruption. Follow this guide to easily fix errors and continue with your work.

1. Restart Windows

   As awkward as it seems this method actually works most of the time. Click on the start button and restart your system.

2. Check hard disk space

   Of course, when installing updates there should be enough disk space for updates to be downloaded and installed. Check your disk space to see if there is sufficient available space.

3. Disconnect external components

   External components can interfere sometimes with the update process, disconnect external hard drives, USB, and other devices, leaving only the keyboard, mouse, and core ones.

4. Check devices in the device manager

   Open device manager and visually check to see if there is a device with a yellow exclamation sign next to it. If there is such a device, right-click on it and choose update driver.

As you know, Windows 10 offers its users tons of options to log in to their computers. This includes simple and easy methods like PIN and complex ones like the Windows Hello Face unlock. However, there are instances when you might face a situation where the login screen in Windows 10 does not appear at all. If you are currently facing this problem, worry not for this post will show you what you can do to fix this problem. There are actually two scenarios to this issue, you might encounter one where the login screen does not show up at all, while the second one is when the login screen shows up but there is no username or password box. There are several options you can check out to resolve the problem. You can try to run System Restore or try the combination of Ctrl + Alt + Delete keys. You could also try to enter a username and password to use the computer or disable Fast Startup or troubleshoot the problem in a Clean Boot State. You could also create a new User Account or run Fresh Start or run the Startup Repair. To get started, follow each one of the given options below.

Option 1 – Try using the Ctrl + Alt + Delete key combination

The first and simple thing you can do to fix the login screen is to tap the Ctrl + Alt + Delete keys and see if it makes the credentials appear or not. If not, proceed to the next given option.

Option 2 – Try running System Restore

If you aren’t able to boot into the desktop of your computer, you can run System Restore in the Advanced Startup Options by following these steps:

• Boot your computer into the Advanced Startup Options screen.
• From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
• Now select Troubleshoot > Advanced Options > Command Prompt.
• After that, type “rstrui” and hit Enter to execute the command which will start the System Restore process.
• Once it’s done, restart your computer.

Option 3 – Try to turn off Fast Startup

• Tap the Win + R keys to open the Run dialog box and type in “control” to open the Control Panel.
• Next, click on the Hardware and Sound section and click on Power Options.
• Afterward, select the “Choose what the power buttons do” option from the left side menu pane.
• Now click on Change settings that are currently unavailable and uncheck the entry that says, “Turn on fast startup (Recommended).
• Then click on Save Changes and restart your computer and see if it has fixed the problem or not.

Option 4 – Try troubleshooting the problem in a Clean Boot State

There are times when some conflicting programs installed in your computer might be the reason why there is an issue with the password box in the login screen of Windows 10. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

Option 5 – Try to run Startup Repair

You might also want to run Startup Repair in fixing the issue with the login screen. To do so, follow the steps below.

• You can start by creating and booting from a bootable Windows 10 USB Stick.
• After that, click on Repair your computer located on the bottom left corner when you are on the initial Windows Startup screen.
• Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
• Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.

There are some new generation motherboards for laptops and PCs that bring in support for both the Unified Extensible Firmware Interface or UEFI as well as the Basic Input Output System or BIOS. The main advantage of UEFI over the traditional BIOS is the fact that UEFI supports a hard drive that has a capacity of more than 2 terabytes. However, the disadvantage of UEFI is that it only supports the x64 Windows operating system versions and that the hard drive is supposed to use the GPT structure. So if your PC is compatible with and supports UEFI and you want to change from Legacy to UEFI, then you’ve come to the right place as this post will guide you on how you can exactly do that without having to reinstall it. There are two ways to change Legacy to UEFI. You can convert MBR to GPT using either the built-in utilities in Windows or using the Recovery Environment. Before you proceed, make sure that your computer fulfills the following prerequisites:

• Your PC’s motherboard should support both Legacy and UEFI.
• Your PC should be running at least the 1703 Windows 10 version or newer on an MBR partition.

Once you’ve made sure that your computer covers the aforementioned prerequisites, refer to the given options below.

Option 1 – Convert MBR to GPT via Windows built-in utilities

• In the Windows Search box, type “command prompt” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After that, execute this command: exe /convert /allowfullOS
• Now, wait until the process is completed since you can track its process on your screen.
• Once it’s done, go to Settings > Update & Security > Advanced Startup options and from there, click on Restart Now. This will restart your computer and give you advanced options.
• Next, select Troubleshoot > Advanced Options where you will see further options including System Restore, Startup Repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
• Now select the UEFI Firmware Settings. This will take you to the BIOS. Boot Mode is typically available under Boot > Boot Configuration. Once you’re there, set it to UEFI and then save the changes you’ve made. After that, your computer will restart.

Option 2 – Convert MBR to GPT via the Recovery Environment

• When the message appears on your screen while running Windows Setup, you need to tap the Shift + F10 keys to open Command Prompt.
• Make sure to run Command Prompt as admin and then execute this command: exe /convert
• After that, wait until the process is completed. When it’s done, you have to go to the BIOS just like in the first given option above.
• As mentioned, you can usually find the Boot Mode under Boot > Boot Configuration. Once you’re there, set it to UEFI.
• Now save the changes made and exit as your computer will restart.

DLL files have certain functions that help the programs in the computer run properly. One of these DLL files is the Msvcr120.dll_clr0400.dll. This particular DLL file is responsible for the extraction of the required resources during the installation of a program and is used when the program is launched or when games are launched in the C++ language. However, a number of users recently reported that they’ve encountered an error that says, “Msvcr120.dll_clr0400.dll is missing” when they tried to install an application or when they tried opening an application. This kind of error could be due to several factors. It is possible that the DLL file is corrupted or there are some programs that interfere with the DLL file. On the other hand, it is also possible that it has been infected by a virus. To resolve this error, here are some potential fixes you need to check out:

Option 1 – Run System File Checker scan

The first thing you can do to fix the error is to try running the System File Checker or SFC scan. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:

• Hit the Win + R keys to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Reboot your computer.

Option 2 – Troubleshoot the missing Msvcr120.dll_clr0400.dll error in a Clean Boot State

You can also troubleshoot the isDone.dll error in a Clean Boot state. It could be that there are some third-party applications in your computer that are preventing the application from getting installed and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try installing the program again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• After you’ve set your computer into a Clean Boot State, make sure that you’re signed in as administrator and then try to install the application again.

Option 3 – Try to re-register the problematic DLL file

You can also try to re-register the DLL to resolve the problem. The Regsvr32 tool is a command-line utility that can be used to register and unregister OLE controls like DLL and ActiveX (OCX) controls in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
  • exe /[DLL file]
  • exe [DLL file]

Note: Replace “[DLL file]” with the name of the DLL file that was pointed out in the error.

• After you execute the given commands, you should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 4 – Try to replace the DLL file with a trusted source

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • x86: This PC > C:WindowsSystem32
  • x64: This PC > C:WindowsSysWOW64
• Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 5 – Scan your computer using Windows Defender

The DLL file might also be infected with malware or virus and to eliminate it which could explain why you’re getting the “Msvcr120.dll_clr0400.dll is missing” error. Thus, you have to scan your computer using security programs like 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.