How to Fix Fatal Error c000021a

There are times when after you upgrade your Windows operating system, the System Logs under the Event Viewer will display an error message saying, “Event ID 10010 error – The server did not register with DCOM within the required timeout”. What is DCOM? DCOM stands for “Distributed Component Object Model”. It is a proprietary Microsoft technology that allows the Component Object Model or COM software to communicate across a network. You can consider it as an extension of COM which is equipped with the capability of solving a couple of inherent problems related to the COM model to the better use over a network. COM is a tool that’s used for advanced configuration and troubleshooting in Windows 10. Developers usually use it to configure routine components and application behavior like participation in transactions and object pooling and so on. The Component Services needs the DCOM wire protocol in order to communicate with the Component Object Model components on other computers. By default, in a Windows-based system, the network computers are configured initially to enable DCOM. There are also some components in Windows that might require registering themselves with DCOM. However, if they fail to do so, you will encounter the “The server did not register with DCOM within the required timeout” error. To fix this, here are some suggestions you can check out.

Option 1 – Try to use the Component Services

• Tap the Win + R keys to open the Run dialog box.
• Then type “dcomcnfg” in the field and tap Enter to pull up Component Services.
• Next, double click on the Computers folder located in the right pane and right-click on My Computer, and select the Properties option.
• After that, switch to the COM Security tab under My Computer Properties and then go to the Access Permissions section.
• From there, click the Edit Default button and in the new window that appears, apply the correct permission to objects under the Group or user names section.
• Once you’re done, click OK and exit. This should fix the error.

Option 2 – Make sure that Function Discovery Resource Publication Properties Services 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, scroll down and look for the “Function Discovery Resource Publication” entry and double click on it.
• Then switch to the General tab and from there, make sure that the Startup Type is set to “Manual (Triggered).
• You also have to make sure that the service is running so if it’s not, just click on the Start button to start the service.
• Now click on Apply to save the changes made.

Option 3 – Try resetting the default DCOM permissions

• Tap the Win + R keys to open the Run dialog box.
• Then type “dcomcnfg” in the field and tap Enter to pull up Component Services.
• After that, expand Component Services > Computers and right-click on My Computer, and then select Properties.
• Next, go to the Default Properties tab, and in the Default Distributed COM Communication Properties section, make sure that:
  • Default Authentication Level is set to Connect
  • Default Impersonation Level is set to Identify.

Flash.ocx Error - What is it?

To understand this error, first, it is important to understand what Flash.ocx actually is. Flash.ocx is basically a flash plug-in or ActiveX file that is responsible for the adobe flash player to work on the system. The Flash.ocx error triggers due to issues in the Adobe flash player.

Solution

Error Causes

The error Flash.ocx may occur due to many reasons. These include:

• Flash player corruption
• Corrupted and broken Active X components

To this error code is not fatal but nonetheless it is still advisable to fix it right away to avoid inconvenience when using Flash player. The inability to run the Flash Player smoothly will hinder you from watching videos on your PC and playing exciting web-based games.

Further Information and Manual Repair

To resolve this error on your system, you don’t have to hire a professional and spend hundreds of dollars. This error code is quite easy to fix. You don’t need to be technically sound to resolve this error code. Simply follow the methods give below to fix the Flash.ocx error code in a few minutes.

Method 1: Reinstall the Flash Player

If the error occurs due to the corruption of the Flash Player, then it is advisable to reinstall the player on your PC. However, before you do that first remove the previous versions of Adobe Flash Player on your system. If the previous corrupted version is not removed properly, then you will be unable to re-install it properly on your PC again. Go to the Add/Remove Programs and find the Flash Player and uninstall it. Make sure the files are also removed from the registry. Once you have successfully uninstalled the corrupted version, now go to the official website of Adobe Flash Player and download the utility from the website. Install it and run it on your system. If it works, then this means the error is resolved. However, if the error still persists, then try method 2.

Method 2: Download Restoro to Fix Active X components

Another reason for Flash.ocx error code can be broken or corrupted Active X components. If this is the issue, then the best way to resolve it is to download Restoro. This is a multi Reimagefunctional and advanced PC Fixer deployed with multiple high-performance scanners including Active X and Class scanner. The Active X and Class scanner perform an entire PC scans for corrupt and broken Active X entries along with missing software paths and invalid combinations. After the scanning process is complete, it repairs and restores the components back to normal. Thereby resolving the Flash.ocx error right away and ensuring smooth video browsing over the web. Restoro is an efficient and a safe program. It has a user-friendly interface and easy navigations. It can be used by all level of users. Besides the Active X scanner, it includes 5 more value-added utilities like a registry scanner and an antivirus to name a few. It is compatible with all Windows versions Click here to download Restoro on your PC and resolve Flash.ocx error code now!

Updating your Windows 10 computer does not always go smoothly as there are some errors you can encounter along the way. One of these Windows Update errors is the error code of 0x80246008. This kind of error can occur during different phases of an update that’s being downloaded or installed and even when an update is being initialized. If you narrow down the cause of this Windows Update error, you’ll most likely see that it is related to the deliverability of a file to a computer from the servers of Microsoft. In other words, the error might be due to conflicts from programs like Firewall as well as third party programs like Antivirus or it could also be due to corrupted disk image or system files or it could be that any of the supporting Windows Update components and services are not working properly. Whatever the cause may be, the potential fixes provided in this post can be applicable to Windows Updates as well as the Microsoft Store. Refer to the suggestions provided below to resolve the Windows Update Error 0x80246008 but before you proceed, make sure that you create a System Restore point first.

Option 1 – Apply some tweak in the Windows Registry from Command Prompt

• Tap the Win + X keys and select Command Prompt (Admin) to open Command Prompt with admin privileges.
• Next, navigate to the root location of the bootable device inside the Command Prompt command line.
• Once you’re in the root location, type the following command and tap Enter to execute it:

reg add HKLMSYSTEMCurrentControlSetControlBackupRestoreFilesNotToBackup

• After that, close the Command Prompt command line and then tap the Win + R keys to open Run utility.
• In the field, type “services.msc” and click OK or tap Enter to open the Windows Services Manager.
• From there, look for the following services:
  • Windows Update – Manual (Triggered)
  • Background Intelligent Transfer Service – Manual
• Now open their Properties and make sure that their Startup type is as mentioned above and that they are running. If they are not running, just click on the Start button.

Option 2 – Run the System File Checker Scan

If the registry tweak didn’t work, you can run a System File Checker scan instead. It is a built-in command-line utility that replaces bad and corrupted system files to good system files that might be the cause why you’re getting the error when you try updating your computer. To run the SFC command, follow the steps given below.

• Tap Win + R 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.

• Restart your computer.

Option 3 – Run the Windows Update Troubleshooter

If the System File Checker wasn’t able to resolve the Windows Update error, you could also try running the Windows Update Troubleshooter as it could also help in fixing any issues related to Windows Update including this one. 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 to disable your antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the Windows Update process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and once the Windows Update is done, don’t forget to enable the antivirus program back again.

Option 5 – Try deleting the files from the SoftwareDistribution folder and resetting the Catroot2 folder

The downloaded Windows Updates are placed in a folder called “SoftwareDistribution”. The files downloaded in this folder are automatically deleted once the installation is completed. However, if the files are not clean up or if the installation is still pending, you can delete all the files in this folder after you pause the Windows Update service. For complete instructions, refer to the steps below.

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net start cryptSvc net start bits net start msiserver

• After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.

After resetting the SoftwareDistribution folder, you need to reset the Catroot2 folder to restart the services you just stopped. To do that, follow these steps:

• Type each one of the following commands.

net start wuauserv net start cryptSvc net start bits net start msiserver

• After that, exit Command Prompt and restart your computer.

The MP4 MIME-type is a video type that is mainly configured in IIS or Internet Information console. It is the one that instructs a web browser to use the default video application when running MP4 files from websites. MIME which stands for Multipurpose Internet Mail Extensions which offers a way to identify files on the Internet-based on their format and nature. For example, when a content-type header value like MP4 is defined in an HTTP response, the browser can be configured to open the file with the proper plugin. However, there are some servers that don’t have an associated MIME type to support MP4 files and so they fail to play these files. In such cases, you will encounter the “Unsupported video type or invalid file path” error, especially when you use the Internet Explorer browser in Windows 10. To fix this problem, you may have to configure the MP4 MIME type in IIS but you might find that IIS is not enabled in Windows 10 which is why you need to turn it on or enable it first. For more details, refer to the following instructions below.

Step 1 – Enable IIS:

• Open Control Panel and go to Programs > Programs and Features.
• From there, select “Turn Windows features on or off” to mark its checkbox.
• After that, select “Web Management Tools” and expand its menu and look for “IIS Management Console”.
• Click the OK button and then wait for a couple of seconds to allow Windows to successfully apply the changes made.

Step 2 – Configure the MP4 MIME type in IIS:

• Go to Control Panel and from there, access Administrative Tools.
• Next, click “Internet Information Services Manager” from the list of given options.
• Once confirmed, it will open the IIS console where you have to click the name of your IIS Server located on the left panel. This will enable several options in the central details section.
• Now double click on the icon with the label “MIME Types”.
• After that, you should see an “Add” link option on the right panel. Click on the link to open a configuration dialog box.
• Then type “.mp4” in the File Name Extension field and enter “video/mp4” in the textbox of the MIME Type.
• Click the OK button to save the changes made. This should fix the “Unsupported video type or invalid file path” error on your Windows 10 computer.

Step 3 – Reset your browsers:

Mozilla Firefox

• Open Firefox and click the icon that looks like three stacked lines located at the top-right section of the browser.
• Next, select the question mark icon from the drop-down menu.
• Then select “Troubleshooting information” from the slide-out menu.
• After that, click on the “Reset Firefox” button located at the top-right section of the newly opened web page.
• Now select “Reset Firefox” in the confirmation pop-up window that appears.

Google Chrome

• Open Google Chrome, then tap the Alt + F keys.
• After that, click on Settings.
• Next, scroll down until you see the Advanced option, once you see it, click on it.
• After clicking the Advanced option, go to the “Restore and clean up option and click on the “Restore settings to their original defaults” option to reset Google Chrome.
• Now restart Google Chrome.

Internet Explorer

• Launch Internet Explorer.
• Next, click the wrench icon for Settings.
• Then click Internet Options.
• After that, go to the Advanced tab.
• From there, click the Reset button. This will reset Internet Explorer’s settings to their default condition.
• Now click OK to save the changes made.

The dxgmms2.sys file is a system driver file in Windows that is associated with the Graphics Rendering capabilities of a computer. However, this file is known to cause various Blue Screen of Death errors. Some of the culprits for these errors include issues with RAM, hard disk issues, corrupted drivers, and incompatible firmware. Despite its many causes, fixing this issue is quite straightforward so it should be easier for you to fix it. Here are some of the Blue Screen errors related to the dxgmms2.sys file:

• SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
• SYSTEM_SERVICE_EXCEPTION
• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN A NONPAGED AREA
• IRQL NOT LESS OR EQUAL

If you have recently created a System Restore point prior to getting the dxgmms2.sys Blue Screen error, then you need to perform System Restore first before you further troubleshoot the problem as it might help in resolving the Blue Screen error. Refer to the steps below to perform System Restore.

• First, press 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.

If System Restore didn’t help in fixing the Blue Screen error, now’s the time for you to resort to the troubleshooting tips provided below but before you get started, make sure that you create a System Restore point first.

Option 1 – Reinstall the Graphics Card drivers

• 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 Graphics Card drivers listed under Display Adapters.
• Right-click on each one of the Graphics Card drivers and select Uninstall device and then follow the next on-screen instructions given to uninstall the driver.
• Now reboot your computer. During this time, your system will automatically reinstall the Graphics card drivers.

Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it. After that, you could also check if there’s a new update of the game you’re getting the issue of the black bar.

Option 2 – Try running the DirectX Diagnostic Tool

Since the dxgmms2.sys Stop error has something to do with the DirectX Graphics APIs, you can run the DirectX Diagnostic tool to resolve the problem.

Option 3 – Try updating or re-installing DirectX

If the DirectX Diagnostic tool didn’t work, you can try to update or reinstall DirectX instead. This can help in fixing the problem because when you reinstall or update DirectX, it will replace the incompatible or corrupted components of DirectX from your computer.

Option 4 – Try to update the BIOS

Updating the BIOS can help you fix the Blue Screen error related to the dxgmms2.sys file but as you know, BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version on your computer.
• Now restart your computer to apply the changes made.

Option 5 – Use some registry tweaks

• Tap the Win + R keys to launch the Run utility.
• Then type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to this registry key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlGraphicsDrivers
• From there, right-click on the right-side panel and click on New > DWORD (32-bit) Value.
• Then set the name of the new DWORD to “TdrDelay”.
• After that, use the next set of instructions and select the one for the Windows version you are using.

32-bit Windows:

• Choose the DWORD (32-bit) value.
• Then type in “TdrDelay” as the name and hit Enter.
• After that, double click on TdrDelay and add “10” as its value and click OK. This will set the response time for your GPU to be 10 seconds.

64-bit Windows:

• Select the QWORD (64-bit) value.
• Next, type in “TdrDelay” as the name and hit Enter.
• Double click on TdrDelay and type in “10” as its value data and click OK.
• Restart your computer to apply the changes made.

Option 6 – Disable the Sleep Functionality

You might also want to disable the Sleep Functionality as it could be the reason why you’re getting the Blue Screen error. There are times when the graphics card’s drivers are being used in the background and if the display goes to sleep and is awakened, it may cause a Blue Screen error. To fix it, you can prevent your computer from going into Sleep mode.

Option 7 – Try to run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that might help you fix any Blue Screen errors related to the dxgmms2.sys file. It can be found on 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.

Error code 0x803f7000 -What is it?

Error code 0x803f7000 refers to an issue in Windows 10 with downloading apps through Windows Store. When you choose the app or game to download, it heads to Downloads in the Store app. Then it says it is acquiring a license but then fails. When you click the “See details” link, you see the error code 0x803F7000. It could mean that the date and time or region settings in your Windows 10 are incorrect or there are some problems with the Windows Store Cache.

Symptoms

• This error appears when you are running Windows 10 and trying to download an app through the Microsoft store. The error code may appear with this message: “Something went wrong. The error code is 0x803f7000, in case you need it”
• You might also see this message along with the error code: "It looks like you've reached your device limit for installing apps and games from the Store on your Windows 10 device. If you want to install apps and games from the Store on another Windows 10 device, remove a device from the device list."

Solution

Error Causes

There may be several reasons for this error:

1. This problem may arise if the date and time in Windows 10 are incorrect.
2. If the region has been set incorrectly.
3. Problems with Windows store cache.
4. Windows store server overloaded.
5. The Windows version you are using is pirated.

Further Information and Manual Repair

Method 1:

Correcting date and time:

• Open up Control Panel > Clock, Language, and Region.
• Then click on Date & Time.
• Now click on Change date & time to correct your time.

Method 2:

Correcting region:

• Navigate to Control Panel > Clock, Language, and Region.
• Then click on Region.
• Then click on the Location tab.
• Now set your actual region from Home location section.
• Click Apply & OK.

Method 3:

Resetting Windows Store:

• Press Windows Flag Key + X from your keyboard. Then select Command Prompt (Admin). It will launch Command prompt as administrator.
• Then type wsreset and hit Enter.
• Wait for a few seconds. It will automatically open Windows Store.
• Then try to download any apps.

Method 4:

1. Open Command prompt in local machine and type in the Windows Store reset tool exe
2. Activate Windows by going to Settings>Updates and Security
3. Run the Modern UI/metro app troubleshooter from Microsoft
4. Keep trying it several times.
5. Try changing locale and time zone to the United States as shown below
6. Go to control panel, Language settings
7. Select location to the United States
8. This will reset the language to US English. After this try downloading the apps again.
9. Try restarting the Windows Updater service or restart the machine once.

You must make sure that you have a good internet connection. You need that for the updates and downloads complete without disruption.

Method 5:

Make sure the app isn’t blocked by the Windows firewall: To make your PC more secure, some apps are blocked by Windows Firewall by default. For proper functioning, you might need to enable an app to receive info through the firewall. For more info, see the "Allow an app to receive info through the firewall," and follow the procedure from start to finish.

Method 6:

Check with your system admin: If your PC is part of a network in an organization, like a business, school, or government agency, your system administrator might have turned off the use of certain apps using the Group Policy. Contact your system admin if you believe that Group Policy is preventing you from using an app.

Method 7:

Make sure your apps are up-to-date: To make the apps working properly, you must keep your apps up-to-date. This could be done by turning on automatic updates in the Windows Store.

Method 8:

Contact the app publisher To view the publisher’s app support info, follow these steps:

1. On the Start screen, tap or click Store to open the Windows Store.
2. Search or browse for the app, and then tap or click it.
3. Scroll to the Details section of the app's description page, and then tap or click the support link for the app under Learn more. The link will open an email message for you to contact support or will take you to a support website.

If you do not possess the technical expertise required to accomplish this yourself or do not feel comfortable doing so, download and install a powerful automated tool to get the job done.

Error Code 0xC004C770 – What is it?

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

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

Solution

Error Causes

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

Further Information and Manual Repair

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

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

Method One: Purchase A New Product Key from Windows

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

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

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

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

Method Two: Attempt to Finish Activation via Phone

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

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

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

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

As you already know, the Windows Sandbox is one of the new features in Windows 10. However, just like other new features, it also throws up errors and one of them is the error that states,

“Windows Sandbox failed to start, Error 0x80070057, The parameter is incorrect”.

This particular error in Windows Sandbox occurs due to its dependence on numerous components of Windows 10 that are related to Hyper-V and Virtualization mainly. To fix this error, there are several options you can check out. You can try to install any pending updates on your Windows 10 computer, as well as make sure that all the services related to Windows Sandbox are enabled.

Option 1 – Try to run the Windows Updates to install pending updates

The first thing you can do to resolve the “Windows Sandbox failed to start, Error 0x80070057” is to check Windows Updates in your computer and see if there are any pending Windows Updates you have to install. All you have to do is go to the Windows 10 Settings app and then go to the Windows Updates section and click on the “Check for updates” button to check if there are any pending updates that are needed to be installed. This could fix the Windows Sandbox error.

Option 2 – Ensure that all the supporting processes and services are running properly

If running Windows Sandbox as an administrator didn’t fix the error, you have to ensure that all related processes for Windows Sandbox are running properly. To do that, follow these steps:

• Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• Next, from the list of services, look for the following services in the given order:
  • Network Virtualization Service
  • Virtual Disk
  • Hyper – V Virtual Machine
  • Hyper – V Host Computer Service
  • Container Manager Services
• After you find the aforementioned services, make sure to check if they are enabled or not and then restart each one of them.
• Once done, try to open the Windows Sandbox again and see if the error is fixed or not.

In case you didn’t know, the new Windows 10 v1903 has brought tons of new features around Windows 10 Updates. One of these features is the ability to automatically adjust the Active Hours based on your computer activity. This feature is really useful as it tells the operating system when to install the Windows Updates. A lot of users use the Active Hours feature to ensure that the Windows Update won’t force them to restart their PCs to install the update. So if your computer is turned on, it won’t apply the update during the active hours you’ve specified. In addition, the active hours change for many users and they are not that strict. For instance, if you set the active hours between 10 am to 5 pm, Windows Update won’t be forcing you to restart your computer to install the updates at those times. Note that Windows Update allows enabling an option using where it can monitor the active hours in your computer and change it. To configure this setting, here’s what you have to do:

• Frist, go to Settings > Update & security > Windows Update.
• Next, take note of your current active hours and click on the “Change active hours” link.
• Then toggle the option that says, “Automatically adjust active hours for this device based on activity”. This will change the active hours and if you match it with the previous one, it should be different.

As you can see on the image given above, the earlier active hours were between 8:00 to 17:00 and were changed to 11:00 to 19:00. If you have been using this feature for a while you’ll find how useful and handy it is especially when you’re using your computer and don’t want any notifications like the prompts for Windows Updates to bother you while working.

If you got an error message saying, “Windows could not start the Windows Update service on Local Computer, Error 87. The parameter is incorrect” while you were trying to start the Windows update service on your computer, then this post could help you resolve the problem. Along with this error, you might also get any of these error codes such as 0x80240034, 0x80244019, 0x80070643, and so on. Aside from these error codes, you will also notice that the Windows Update service has been stopped. To fix this issue, here are a couple of suggestions that might help but before you go on, you need to create a System Restore point first.

Option 1 – Try checking Services Dependencies

Dependencies of a Windows Service in Windows 10 are when windows services depend on other services. Such is the case with the Windows Update service – it also depends on three different services such as the Remote Procedure Call or RPC service, DCOM Server Process Launcher, and the RPC Endpoint Mapper. Meaning to say, if two of these services are not working as expected, then the dependant service will also be affected. This could be the reason why the Windows Update service could not start.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter to open Windows Services.
• From the list of Services, look for the following services:
  • Remote Procedure Call (RPC) Service
  • DCOM Server Process Launcher
  • RPC Endpoint Mapper
• After you find these services, double click on each one of them and check whether the Startup type for all is set to Automatic and the Service status is set to Running or not.
• If the service status is not running, then click the Start button. Afterward, check if you can now run the Windows Update service.

Option 2 – Check the Background Intelligent Service and the Cryptographic Service

• 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:
  • Background Intelligent Transfer Service – Manual
  • Cryptographic Service ­– Automatic
• 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 3 – Reset Windows Update components

If the first two options did not work then you might want to reset the Windows Update components manually. Follow the steps below to reset them.

• Open Command Prompt with admin privileges.
• After that, type each one of the following commands and hit Enter after you key in one after the other.
  • net stop wuauserv
  • net stop cryptsvc
  • net stop bits
  • net stop msiserver

Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
  • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
  • ren C:WindowsSystem32catroot2 Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC.

Option 4 – Run the Windows Update Troubleshooter

If resetting the Windows Update components 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 this one. 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 5 – Try removing a value from the Windows Registry

If running the Windows Update troubleshooter didn’t help and you receive a message instead saying, “Service Registration is Missing or Corrupt”, you can try to remove a value from the Windows Registry.

• Tap the Win + R keys to open the Run dialog box.
• Then type “Regedit” in the field and hit Enter to open the Windows Registry.
• Next, navigate to this path: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsSelfHostApplicability
• From this path, look for a value named “ThresholdOptedIn” and if you find it, delete it.
• Exit the Registry Editor and see if you can now enable the Windows Update service.