A Quick Guide to Resolving Error Code 0x800ccc92 on Your PC

If you encounter the MUP_FILE_SYSTEM Blue Screen error with a value of 0c00000103, then it indicates that the multiple UNC provider or MUP has got an invalid of unexpected data. This can lead to the fact that the MUP cannot channel a remote file system request to a network redirector, the UNC, or Universal Naming Convention provider. There are several ways you can fix the MUP_FILE_SYSTEM Blue Screen Error on your Windows 10 computer, you can try to check the hardware of your computer physically, update or rollback some device drivers, run the Driver Verifier Manager, remove any hardware you’ve installed recently or fix issues related to IRQ. Use the given options below as reference to fix the MUP_FILE_SYSTEM Blue Screen Error.

Option 1 – Try to physically check the hardware

The first thing you can do is to check the physical status of the hardware in your computer. You can clean the dust off the hardware components like the Network Card of the computer. You might want to use a small blower or you could also use a soft cloth and run the components gently. Make sure that you don’t damage any parts with moisture or cause harm to any circuits while you carry out this task.

Option 2 – Try to rollback, update several device drivers

You can try to roll back, update or disable certain device drivers on your computer to resolve the MUP_FILE_SYSTEM Blue Screen error.

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for the device drivers related to the Network Card, Chipset, Disk Drive, and the Graphics Drivers and any other driver related to MUP.sys and SwapBuffers.sys system files
• After that, right-click on each entry of the device drivers and select the “Update Device” option from the menu.
• Now follow the next on-screen instructions that appear and then restart your computer.
• After restarting your computer, check if the Stop error is now fixed.

Option 3 – Configure the Driver Verifier Manager

The Driver Verifier Manager is another tool in Windows that could help you fix driver-related issues. And so if you want to fix the MUP_FILE_SYSTEM Blue Screen error you need to use the Driver Verifier Manager:

• Type in the keyword “Verifier” in the Cortana search box to search for Verifier in Windows 10.
• After that, select the option “Create custom settings”.
• Make sure that you have checked everything except the options “DDI compliance checking” and “Randomized low resources simulation”.
• Next, select the option “Select driver names from a list” option.
• Afterward, you have to select all the drivers from any unofficial or third-party provider. To simply put it, you have to select all the drivers that are not supplied by Microsoft.
• Then click on the Finish button.
• Open Command Prompt as administrator and execute this command – verifier /querysettings
• The command you just executed will display the Driver Verifier settings so if you see any of the flags enabled boot your Windows 10 PC into Safe Mode.
• Open the Command Prompt as admin again and run this command – verifier /reset
• The command will reset the Driver Verifier. Once the process is done, restart your PC and check.

Option 4 – Try to disconnect or disable newly installed hardware

In this option, you will have to disable or remove the hardware you’ve just installed recently since external devices could be the one that’s causing the Blue Screen of Death error to appear. To do that, just disconnect any external device that’s connected to your computer physically and then check if it fixes the MUP_FILE_SYSTEM Blue Screen error.

Option 5 – Try fixing IRQ-related issues

The Stop error might have something to do with an issue related to IRQ. You can verify it by switching your PCI Cards around. Aside from that, you can also check if the IRQ2 is assigned to a COM Port that is unavailable at that time.

Option 6 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like MUP_FILE_SYSTEM. It can be found in the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 7 – Perform a System Restore

Performing System Restore might help you in fixing the Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Mail and Calendar not working with Cortana? As you know, Cortana was first launched way back in 2014 with an emphasis on its tight integration with both the Windows Mail and Calendar apps. This integration has been one of the highlighting features of this Personal Digital Assistant. However, there are some users who reported that the Calendar and Mail integration with Cortana is not working on their Windows 10 computers. This kind of problem could be due to several factors like the loose integration between the services, incompatible versions of the components, and many more. According to the users who experienced the issue, the features affected are the syncing of calendar appointments, sending emails via Cortana, and so on. To fix this problem, there are several options you can try. You can try to restart Cortana’s processor run the Windows Store Apps troubleshooter. You could also try to relink your Microsoft account or reinstall the Mail and Calendar apps, as well as reinstall Cortana.  For more details, follow the suggestions given below.

Option 1 – Restart Cortana’s process in the Task Manager

Restarting Cortana’s process in the Task Manager could also help you resolve the problem. Refer to the steps given below to do so.

• Tap the Ctrl + Alt + Del keys to open the Security options window.
• From there, look for the Task Manager in the given list and open it.
• Next, look for the process of Cortana and right-click on it, and then select the End Task option to end its process.
• After that, the Cortana process will restart by itself and re-initialize.

Option 2 – Run the Windows Store App troubleshooter

The Windows 10 Store Apps Troubleshooter will help you in fixing the Web Preview problem in Cortana. This is a great built-in tool from Microsoft that helps users fix any app issues. To use the Windows Store Apps Troubleshooter, follow the steps below.

• Tap Win + I keys again to open the Windows Settings panel.
• Go to Update & Security and then go to Troubleshoot.
• Under the Troubleshoot section, on your left-hand side, scroll down to find Window Store Apps.
• Then click on the Run the troubleshooter option and follow the on-screen instructions and then see if it fixes the problem.

Option 3 – Try to relink your Microsoft Account

You might also want to relink your account in Microsoft using the Windows 10 Settings app.

• Open the Windows 10 Settings app.
• Next, navigate to Accounts > Email & Accounts and from there, go to the section of Accounts used by Email, Calendar, and Contacts.
• After that, select your email account and select Manage.
• Once done, a new panel will come up where you have to click on the “Delete account from this device” link.
• Once you get a confirmation, select Delete and then relink the same account. This should resolve the problem.

Option 4 – Try to reinstall or update the Mail and Calendar apps

• Open Windows PowerShell as admin.
• Next, execute this command: Get-AppxPackage *windowscommunicationsapps* | Remove-AppxPackage
• Once done, restart your computer and go to the Microsoft Store page to get the latest updates for both Windows Mail and Calendar apps.

Option 5 – Try to reset Cortana via Settings

• Launch the Windows 10 Settings app and go to Apps > Apps & Features.
• Next, look for the entry of Cortana on the right-side panel and select it.
• After that, select the Advanced options and then select the Terminate button under the Terminate section.
• Once done, click on the Reset button under the Reset section.
• Restart your PC.
• After your computer boots, launch Cortana again and check.

Option 6 – Try to reinstall Cortana

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

• First, right-click on the Taskbar and select the Task Manager.
• Next, select File menu > Run new task and type “Powershell” in the field and then select the “Create this task with administrative privileges” option.
• Click on OK to open the PowerShell console.
• After that, 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 the problem is now fixed.

Error Code 0xc004f210 – What is it?

Error code 0xc004f210 occurs when Windows 8 users fail to activate their Windows operating system. Users will be able to identify error code 0xc004f210 because of the following common symptoms which occur:

• Inability to activate Windows 8 operating system
• Message box with error code 0xc004f210

Solution

Error Causes

If you enter an invalid product key or do not have a digital entitlement for the edition of Windows you are attempting to activate, you may experience error code 0xc004f210. Since this error usually occurs due to these main reasons, you will most likely find success resolving this issue by ensuring you use a valid product key or activate an appropriate edition of Windows based on the edition of your digital entitlement.

Further Information and Manual Repair

Error codes can be resolved through manual repair procedures that seek to fix the underlying issues causing the error. In the case of error code 0xc004f210, you should be able to resolve this error by using the methods below. You may also consider contacting a Windows repair technician if you have difficulty resolving the error code.

Method One: Enter Valid Product Key

To successfully activate your operating system and resolve error code 0xc004f210, you will need to enter a valid product key in the Update & security section of Windows. Follow the instructions below to enter the product key.

• Step one: Click the Start button then select Settings
• Step two: Select Update & security then Activation
• Step three: Click the Change product key
• Step four: Enter a valid product key

If the issue causing error code 0xc004f210 is related to the use of an invalid product key, you should be able to successfully activate your Windows operating system. Should the problem persist, however, you will need to attempt the next manual repair method explained below? Note: Failure to fix this error code might result in other Windows 10 error messages.

Method Two: Ensure Edition of Windows Matches Your Digital Entitlement

Digital entitlement allows Windows users to access activation without using a product key. This digital entitlement only affects Windows 8 users who are attempting to activate versions of Windows 10 that include Windows 10 Pro. Once you are using a genuine copy of Windows 8.1 and your edition of Windows matches your entitlement, you may proceed with the instructions below.

• Step one: Click the Start button then select Settings
• Step two: After selecting Settings, click Update & Security
• Step three: Select Windows Update then the Check for updates tab
• Step four: Click activate Windows 10 update

You should be able to activate your Windows update once you follow the instructions above. Remember error code 0xc004f210 is an activation code related to product keys or your digital entitlement so once these issues are rectified, you should have no problem activating your operating system of choice and enjoying the benefits it offers. If, however, the problem remains unresolved after you have attempted both manual repair methods, there may be unusual issues affecting your system. Contact Microsoft to rectify the issue or get help from a Windows repair technician.

Method Three: 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.

Originally Microsoft has imagined its widgets menu as Microsoft-only widgets but it seems that they have changed their mind. Due to the latest leak, it seems that Microsoft will open the widgets menu to 3^rd party developers as well but at launch, it will be only official widgets. It was hinted that later widgets menu will be open to developers who want to bring their own stuff into it. Distribution, date, and technology that will need to be used in order to create your widget have not been discussed nor leaked at a given time but in some way, I am very glad that at least some customization will be in Windows 11. It is funny and amusing how some things that were in Windows Vista are getting back like glass design, round corners, and widgets. Let’s just hope Windows 11 will be a better Windows than Vista was.

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.

A runtime error is commonly an error that's created after the PC is operating software and encounters a problem of some form. For instance, a runtime error like run-time error code 7 reveals an "out of memory" dilemma.

Solution

Error Cause

Run-time errors are normally brought on by clashes with TSR (Terminate and Stay Resident) applications or additional operating applications, software problems, storage problems, or pc viruses.

Troubleshooting a Run-time Error

First, enter the run-time error signal into a search engine to see what info you will get about the precise runtime issue you are receiving. Next, end - job all running applications and TSRs to make sure these aren't the origin of the issue. You can certainly do so by obtaining the job manager by striking Control Alt Delete.

In case your issue is regularly occurring with a unique program, go to that system programmer's site and obtain any upgrades and patches. If unavailable, try uninstalling the application involved and reinstalling it.

In the event the issue is occurring with the os, you may consider reinstalling it although it is a huge commitment. A much better idea would be to try a fix for both Windows XP or Windows 2,000. It is possible to fix and scan files by typing : sfc / scannow, heading to the Begin switch, Run, and then pushing enter. Make certain to put an area between sfc and the reduce.

You might have an equipment or storage dilemma if these measures have not resolved your run-time errors. If that is the situation, contact the support of the application under consideration for potential support accompanied by the pc or motherboard manufacturer.

Many run-time problems can be solved by upgrading the application that's creating the problem. This is only because the programmer's frequently releasing patches and improvements for their applications as insects are found and repaired.

Storage problems may frequently be fixed by rebooting the pc. Consider a reboot a short-term repair. Rebooting clears the memory but in case your COMPUTER does not have adequate memory for your applications you're operating, or sufficient hard-drive space you'll immediately run out of memory again. Something less than this sum may cause memory issues since the computer's swap file isn't in a position to expand in dimension as required.

To assess the quantity of free area, available My Computer and right-click on the HDD, generally the D: drive. Select Attributes in the menu and see the disc's ability. Perform the disk clean-up function by following prompts and pressing the Disk Clean-up button, if the room is reduced.

You may be getting run-time errors, in case your storage chip is really failing. Eliminating and changing the awful memory chip will solve the difficulty. If you're encountering other runtime-related errors, like an install runtime issue, try cleaning away the portions of the registry with some software solution. 

What is Bandoo?

Bandoo application, specifically product version 5.0.2.4762, is a bundled program. What does this mean? Simply, Bandoo, upon installation, installs additional programs, extensions, and add-ons to a computer and computer’s browser, without the knowledge of the user. This version of Bandoo concentrates on providing features for entertainment and also functionality/tools for backing up your computer files. Once executed, the file installs the iLivid Download Manager Software. Additional tools installed within the bundle include a Movie Toolbar and the thriving search engine ‘Ask.com.’ Technical details about Bandoo include: 

Digital Signature/Publisher:  Bandoo Media, Inc. Product Version: 5.0.2.4762 Entry Point:  0x000038AF

Assessment of Bandoo Potentially Unwanted Program

Interestingly, before the installation of Bandoo product version 5.0.2.4762 was complete, Spyhunter detected that the software was a PUP. After the installation was complete, product version 5.0.2.4762 of Bandoo added add-ons and extensions to both Internet Explorer and Chrome Browsers (these were the only 2 browsers used within the assessment). These appeared in the form of a Movie toolbar, providing quick access to movie trailers, reviews, ratings, and other video functionality, and ‘Ask’ (Ask.com) search engine.

Areas of Infiltration by Bandoo

Bandoo product version 5.0.2.4762 infiltrated several areas of the computer system. After installation, folders were neatly placed as files within all programs. Within “All Programs” there were 3 newly added programs. These included:

• iLivid
• Movies Search App for Chrome
• Movies Search App for Internet Explorer

The iLiVid application seems to be the main offer while the others, namely Movies App for Internet Explorer by Ask was featured as promotions or advertisements. Additionally, just below the 'END USER LICENSE AGREEMENT AND PRIVACY POLICY' a request was made that the user set Ask.com as both their homepage, new tab, and default search engine. This is just another well-concocted plan to get Internet users onto the 'Ask.com' search engine. Along with the 3 programs installed as a bundle,  a new folder was found within the computer's local drive. This program was termed OLBPre.

What is OLBPre?

OLBPre.exe is reputed as dangerous adware that weakens the security settings of a computer system. It's also covertly used for dropping files on a targeted computer, often without the user's consent or knowledge.

Manual Steps for Removal of Movie Search Apps

I found this removal pretty simple. Depending on your Operating System, there will be slight discrepancies in the manual removal steps. Using the Windows 8 (8.1) OS on your computer:

• Step 1: from your desktop, right-click on the ‘Start Button’.  A menu box will then appear.
• Step 2: from the menu box, click ‘Search’.
• Step 3: enter “Programs and Features” within the Input Box.
• Step 4: locate the installed apps. You should be able to see “Movies Search App for Chrome” & “Movies Search App for Internet Explorer”.
• Step 5: right-click on the names of the Apps (the ones you want to remove) when you’ve located them.
• Note: you will have to remove the apps one after the other.
• Step 6: after right-clicking the app, click the uninstall option (probably the only option available anyway).
• Note: If a box appears asking If you wish to ‘block’ or ‘allow’, select the allow option. That’s just the Publisher’s way to annoy you out of uninstalling the app.
• Step 7: follow instructions until the app is fully removed.
• Step 8: Repeat steps for the other app.

Since Bandoo also changed your search engine, you’ll have to reset that manually for Internet Explorer and Chrome. Follow the steps below:

• Step 1: Open your Internet Explorer browser.
• Step 2: Click the tool option located in the top right-hand corner of the page.
• Step 3: Click the “Internet Options” option.
• Step 4: Under the “General” tab, you’ll be able to see approximately 3 buttons. Click the button labeled ‘Use Default”.
• Step 5: At the bottom right-hand corner of the pop-up menu, select the “Apply” button and “OK”. That should do the trick.

Removal for Chrome Extension

This removal is simple.

• Step 1: Open your Chrome browser.
• Step 2: A pop-up box will be visible.
• Step 3: Click the “Remove from Chrome” option.

After removing the extensions/add-ons, perform another scan with Spyhunter. You’ll pick up a few threats. The second scan should clear up everything. To completely remove Bandoo from your computer, click here to download and install Spyhunter.

A number of users reported that they encountered an error that says, “Windows doesn’t have a network profile for this device” while they tried to connect Network devices such as printers and speakers to their Windows 10 computers. On the other hand, this kind of issue is reported for non-network devices as well. This kind of error might be due to incompatibility between the device and your operating system or it could be that the network drivers in your computer need to be updated in order to recognize the new device. Whatever the cause is here are a couple of suggestions you can try to resolve the “Windows doesn’t have a network profile for this device” error.

Option 1 – Check if the network device is compatible with your operating system

As mentioned, the error could be due to incompatibility between the device and the system. To verify, just go to the website of the device’s manufacturer since you can find all the information about the device there.

Option 2 – Make sure that your computer is discoverable

• Click on the Start button.
• Then click on the gear-like icon to open Settings.
• After that, select Network & Internet >> Wi-Fi.
• Next, change the Network Profile to Private.
• Now restart your computer and then connect the device again and see if the error is gone or not.

Option 3 – Try to update or rollback or uninstall the Network drivers

You might also want to update or roll back or disable your Network drivers to fix the “This operation failed as no adapter is in the state permissible for this operation” error.

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.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 Network Adapters and expand it.
• Then right-click on each one of the Network drivers and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the “Windows doesn’t have a network profile for this device” error.

Option 4 – Try to check the SNMP status

• Tap the Win + R keys to open the Run dialog box and type “services.msc” in the field and tap Enter to open the Service Manager window.
• After opening the Service Manager, look for the SNMP Service from the list of services.
• Once you’ve found the SNMP Service, make sure that its Service Status is set to “Running”. If the service is not running, just right-click on it and select Properties.
• From there, change the Service Status to Automatic and then click on the Apply and OK buttons.
• After that, click on the Start button again and check if the error is now fixed.

Note: If your printer is the one that triggers the error, refer to these steps:

• You have to go to Control Panel > Devices & Printers.
• From there, right-click on the printer which is the one that causes the error, and then select Printer Properties.
• Next, click the Configure Port button under the Ports tab and select SNMP Status Enabled.
• Now click the OK button and check if it fixes the error or not.

Option 5 – Run the Hardware and Devices Troubleshooters

You could also run this troubleshooter to fix the “Windows doesn’t have a network profile for this device” error.

• The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
• After opening Settings, look for the Update and Security option and select it.
• From there, go to the Troubleshoot option located on the left-hand side of the list.
• Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
• After the system restarts, check if the problem’s now fixed. If not, refer to the advanced guide given below.

Recently, a lot of users experience issues after the Windows 10 v1903 upgrade and one of them is that the Cortana Web Preview is not functioning like it’s supposed to. Even though Microsoft has already replaced the unified search where you no longer have to use Cortana, it is still undeniably useful and is packed with some great features, one of which is the Web view. Each time you type a search query, it will open a web view where you can see the results using Bing. However, some users reported experiencing some issue wherein the web view does not show anything and appears to be broken and users have to click on the Open in Browser link. Thus, if you are one of the users who experience the same problem, then this post is for you – it will guide you on what you can do if the web preview in Cortana is not working on your Windows 10 device. To fix the Web Preview issue in Cortana, you can try to restart Cortana or reset it using the Windows Settings app or change the Search filter level. You could also try to run the Windows Store App troubleshooter or re-register or reinstall Cortana. For more details refer to the options provided below.

Option 1 – Try to restart the process of Cortana

There are times when the running process of Cortana might encounter an error and breaks a particular component of the whole service so the first thing you can do is to restart Cortana’s process in the Task Manager.

• Tap the Ctrl + Shift + Esc keys to open the Task Manager.
• Next, go to the Processes tab and look for Cortana’s entry.
• Once you find it, right-click on it and select the End task option.
• Afterward, open Cortana again and see if it fixes the web view problem or not.

Option 2 – Try changing the search filter level

The next thing you can do to fix the Web View is to change the search filter level. All you have to do is go to Settings > Search and change filter level and from there, modify the search filter level and then see if it fixes the problem.

Option 3 – Run the Windows Store App troubleshooter

The Windows 10 Store Apps Troubleshooter will help you in fixing the Web Preview problem in Cortana. This is a great built-in tool from Microsoft that helps users fix any app issues. To use the Windows Store Apps Troubleshooter, follow the steps below.

• Tap Win + I keys again to open the Windows Settings panel.
• Go to Update & Security and then go to Troubleshoot.
• Under the Troubleshoot section, on your left-hand side, scroll down to find Window Store Apps.
• Then click on the Run the troubleshooter option and follow the on-screen instructions and then see if it fixes the problem.

Option 4 – Try to reset Cortana via Settings

• Launch the Windows 10 Settings app and go to Apps > Apps & Features.
• Next, look for the entry of Cortana on the right-side panel and select it.
• After that, select the Advanced options and then select the Terminate button under the Terminate section.
• Once done, click on the Reset button under the Reset section.
• Restart your PC.
• After your computer boots, launch Cortana again and check.

Option 5 – Try to re-register and 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:

Set-ExecutionPolicy Unrestricted

• After that, execute this second command to reinstall Cortana:

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

• Restart your computer and check if the Web Preview in Cortana is now working.

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.