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If you got an error message saying, “Windows Update failed to install error 0x80240034” when trying to update your Windows 10 then it’s probably due to some update services that are failing at some point. In addition, you might also see Error constant WU_E_DOWNLOAD_FAILED with the description that “Update has failed to download”. The Windows Update failed to install error 0x80240034 might be caused by some connection problem or there might be a duplicate update or that installation is not allowed and so on. And so to fix the problem, we’ve prepared some options that could help. Make sure to follow them accordingly but before you proceed, you need to verify if you have a stable internet connection.

Option 1 – Restart your computer and try installing the Updates again

Restarting your computer can also help in fixing the Windows Update failed to install error 0x80240034. There are cases where the issue resolves on its own as it could just be some simple network or PC error.

Option 2 – Try to disable your antivirus program

The Windows Update failed to install error 0x80240034 might be caused by the antivirus program installed in your computer which is why 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 3 – Clean up temporary and junk files

• Open Setting > System > Storage from the WinX Menu.
• From there, you will see a list of all the local and connected storage devices along with the details on the free space.
• Now make sure that the Storage Sense feature is turned On then go find a link that says “Free Up Space” and click it to open.
• After that, a screen which is the built-in program in Windows 10 will appear and will scan your computer for the following junk files so you can free up disk space:
• Windows Upgrade Log Files
• The system created Windows Error Reporting Files
• Thumbnails
• Temporary Internet Files
• Previous Windows Installation Files
• Delivery Optimisation Files
• DirectX Shader Cache

Note: Once you’re done freeing up space on your drive, try to run the setup file again.

Option 4 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors like error 0x80240034. 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 – Delete Files from Software Distribution Folder & Catroot2 folders

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, and then try to run Windows Update once more.

Option 6 – Run the DISM tool

If the first five options didn’t work, then running the Deployment Imaging and Servicing Management tool might help as it can repair the Windows System Image as well as the Windows Component Store in Windows 10.

• After you access the Advanced Startup options, select Command Prompt by using the arrow keys on your keyboard.
• Next, type in this command: DISM /Online /Cleanup-Image /RestoreHealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 7 – Run System File Checker

Running the SFC scan or System File Checker might also help in fixing error 0x80240034.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.
• Restart your PC.

Option 8 – Try to use the Media Creation tool

The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.

• After making the bootable drive, you need to plug it into your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

What is this particular error?

One common issue when trying to upgrade to Windows 10 from Windows 7 or 8 is incompatible software. Any installed software or app that isn’t compatible with Windows 10 will prevent you from continuing with the set-up. Normally, you’ll get an error message “What needs your attention” and it will ask you to uninstall a list of apps manually. Unfortunately, some users reported that they couldn’t find the app it asks to uninstall. In some cases, users said they’ve already uninstalled the app but it still won’t start the Windows 10 Setup.

Solution

Error Causes

This type of issue normally occurs because of the following:

• Incompatible software/apps
• Corrupted software/apps
• Incomplete uninstallation

Further Information and Manual Repair

Here are some steps you can take whenever you encounter this error.

Note: Before taking any steps, make sure that you’re highly equipped to do so. Some steps might affect the system and even do more damage to your computer. You might also want to consider using an automated tool instead.

Method 1 – Perform a clean boot, then retry upgrading

A clean boot is normally done to start Windows using the least set of drivers and startup programs available. By doing this, it eliminates possible software issues that happen when installing or uninstalling a program in Windows 10.

Before performing a clean boot, make sure to take note of the following:

• You need administrative privileges in order to perform this action.
• When doing this, your computer might lose temporarily functionality. However, it will return after start-up.
• It is highly advisable to not use the System Configuration to change advanced boot options.

Here are the steps to perform a clean boot.

• Step 1 – Go to Start and search for msconfig
• Step 2 – Go to System Configuration
• Step 3 – Under Services tab, click on the “Hide all Microsoft services” checkbox. Then, choose to Disable all
• Step 4 – Go to the System Configuration’s Startup tab. Then, click on “Open Task Manager”
• Step 5 – In the Task Manager dialog box, you will see a Startup tab. Choose items that you want to disable and then click the Disable button
• Step 6 – Close the Task Manager dialog box.
• Step 7 – Go back to the Startup tab of the System Configuration box. Click “Ok” then proceed with restarting.

Method 2 – Manually uninstall programs from the Program Files folders

Instead of using the “add or remove programs” feature in Windows, you might need to manually install the program directly from the C drive. To do this, follow the steps below:

• Step 1 – Go to the C drive, and look for the Program Files folders. For 32-bit users, you can find it at C:\Program Files. If you’re using the 64-bit version of Windows, go to C:\Program Files (x86) folder.
• Step 2 – Find the “uninstall” application file
• Step 3 – Right-click, and run the file as administrator. Wait for the uninstallation to finish. In some software, you need to restart your system before the uninstallation will take effect.

Note: In some cases, you may also need to search for files related to the program. You can use the search bar under Drive C to do this. Delete those files as well.

Method 3 – Create a new user account

Before upgrading to Windows 10, create a new user account. Make sure it has administrative privileges. From there, run the upgrade.

Method 4 – Use third-party uninstaller services

If you still can’t run Windows 10 Setup after the above methods, you might need to rely on a third-party service. Microsoft recommends Revouninstaller that can help you.

Before using this software, reinstall the application or utility that Windows 10 wants you to install. Then, use Revouninstaller to delete the program completely.

Method 5 – Disable third-party antivirus software

Some users who experienced this issue reported that it was solved after disabling or completely uninstalling the anti-virus software installed in their system.

Method 6 – Use a trusted automated tool

If after trying the above methods, the problem still persists, it might be best to use a trusted automated tool to fix the issue.

In this post, we will discuss what the “ bootres.dll ” file is in the Windows 10 operating system and where it’s also located. In addition, you will also be guided on how you can replace or fix a corrupt bootres.dll file which may prevent you from booting to your Windows desktop and will display an error message instead saying, “Boot critical file resourcescustombootres.dll is corrupt”. There are times when this error might also boot your PC to the Automatic Repair screen. DLL files, also known as Dynamic Link Libraries are external parts of applications that run on Windows as well as other operating systems. Almost all applications are not complete in themselves and store code in different files so if there is a need for the code, the related file being called by a certain application is loaded into memory and used. If the software or the operating system is unable to find the concerned DLL file or if the DLL file ends up getting corrupted, you will most likely get an error message. In case you don’t know, the bootres.dll file is a critical system OS file, size 90KB, and can be found in the Windows folder. It is a part of the Boot Resource Library and portrays an important role in making sure that your PC boots properly. So if it ends up getting corrupted, your PC may fail to boot correctly and you’ll get an error message instead. To resolve this problem, here are some suggestions that might help. If your PC automatically boots to the Automatic Repair screen, you need to click on that option to run the Automatic Repair. If it doesn’t work, you have to boot into the Advanced Startup options to manually access and run the Automatic Repair. Once you’re in the Advanced Options, you will be able to:

• Run Automatic Repair
• Use System Restore
• Start Windows from an external device
• Access Command Prompt
• And use the System Image Recovery to restore Windows from a Factory image.

If the Automatic Repair fails to fix the problem, you may have to use System Restore or the Command Prompt to carry out further troubleshooting steps. Refer to the guide below to use these tools.

Option 1 – Try running the System File Checker in Safe Mode

Running the System File Checker is the safest way to fix DLL file missing or corrupted errors are thrown up by the Windows operating system as it could give you better results. System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files that might be causing the Machine Check Exception BSOD error. To run the SFC command, follow the steps given below.

• Boot your PC into Safe Mode.
• 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.

Option 2 – Try running the DISM tool to repair the System Image

To repair the System Image, you need to use the DISM or Deployment Imaging and Servicing Management tool. The DISM tool is another command-line tool in the Windows operating system that could help users fix various corrupted system files. To use it, follow these steps:

• Open the Command Prompt as admin.
• Then type in this command: Dism /Online /Cleanup-Image /RestoreHealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Note: The command you executed will check for Windows component store corruption and will restore its good health. The scan might take up to 15 minutes. Once it is done, you have to restart your computer.

Option 3 – Try to repair the MBR and rebuild BCD

To repair the MBR and rebuild BCD, follow these steps: The problem might boil down to the Master Boot Records since the previous case has already been isolated. There are times when the Master Boot Records can get corrupted and even though it is a serious issue, it can still be rectified by repairing the Master Boot Record.

• Tao the F8 key while booting the system to go into the Windows Recovery Menu.
• Next, click on Troubleshoot.
• Then click on the Advanced options to get into the Automatic Repair menu.
• After that, you have to use the bootrex.exe tool, so click on the command prompt and type in the following commands, one after the other:
• bootrec /RebuildBcd
• bootrec /fixMbr
• bootrec /fixboot
• Exit and then go ahead and restart your PC.

Option 4 – Try running the ChkDsk utility

One of the best options you must try is running chkdsk as it will check the disk for any errors and repair them automatically. To use it, follow these steps:

• Boot your PC to the Advanced Options menu and click on Command Prompt.
• Once you’ve opened an elevated Command Prompt, type in the following command and tap Enter to execute it:

chkdsk C: /f /x /r

Note: “C” is the drive root drive so it could be changed if you’re using a different one.

Option 5 – Try resetting your PC

Go to the Advanced Options > Troubleshoot > and select the Reset This PC option from the menu and then select Keep my files.

If you encounter an error saying, “Invalid file handle” when you try to rename, copy, delete a file or other operations in your Windows 10 computer, then read on as this post will guide you in what you can do to fix it. This kind of error pops up when the operating system tries to carry out an operation on a folder or file using the following words:

CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9

When you rename or create a folder or file using the reserved words given above, you could encounter an error that says, “The specified device name is invalid”. This occurs since these words are Windows system reserved words that you can’t use, unlike any other words. Thus, if you have a folder or file which contains any of the reserved words on another computer that runs a non-Windows operating system and you try to copy or rename it Windows, then it’s no wonder why you’re getting this error message. In such cases, you can always click on the Skip button to stop the operation. However, if there are various folders or files, you can just use the Command Prompt to carry out the task. All it takes is a simple command that will get rid of the folder as well as the files in it. How? Refer to the instructions given below. Step 1: Tap the Win + R keys to open the Run utility. Step 2: Next, type “cmd” in the field and then tap Enter to open Command Prompt. Step 3: After opening Command Prompt, execute the following command:

rd \.file-folder-path /S /Q

Note: The “rd” command will remove the directory or the folder while the “\.” command will select the current computer. The “/S” command, on the other hand, helps you in removing all the sub-directories and the files that are in the CON folder. The “/Q” command is not really mandatory since it helps you remove everything silently without any confirmation message. For example, if you have a folder named “CON” located on your Desktop, the path will be like this “C:/Users/<username>/Desktop/CON”. In this case, the command should be like this:

rd \.C:Users<username>DesktopCON /S /Q

However, if the error pops up for a whole different reason, you could use the following command instead to remove the reparse point extended functionality. Once you’ve entered the given command below, you should now be able to delete the file.

FSUTIL reparsepoint delete C:Users<username>DesktopFileName DEL C:Users<username>DesktopFileName

Recently, a number of Windows 10 users reported that they were not able to use Cortana properly because it wasn’t able to connect to the internet. According to these users, Cortana won’t connect to the internet even when their internet connection is stable. According to security experts, this issue is confirmed to occur only with Microsoft accounts. This problem might have something to do with a proxy server that interferes with Cortana. There were reports that this issue was caused by a proxy that was filtering the network connection which also happens to interfere with Cortana’s ability to adapt search results and queries based on the user’s location. It could also be caused by some glitch in the home network or your Microsoft account information is inconsistent or your Microsoft account has to be verified. Here are some suggestions that could help fix the connection issue in Cortana, just start with the first one and work your way down until you encounter an option that fixes the problem.

Option 1 – Restart or reset your modem or router

The first thing you can try is restarting or resetting your modem or router. All you have to do is unplug the power cable of the modem and then plug it back in after a few seconds. You could also use the reset button of the modem at the back if it is one. But before you press the reset button, keep in mind that it will erase all the connection credentials and it will be set back to its default settings. After rebooting the network, you can restart your computer to force your modem or router to reassign an IP address to your computer.

Option 2 – Restart Cortana

Restarting Cortana can help you resolve the issue.

• To restart Cortana, open the Task Manager, right-click on Cortana and select the “End process” option.
• Then go to the File tab and select “Run new task”.
• After that, type in “cortana.exe” and press Enter to restart the process.

Option 3 – 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 4 – Open another app that uses a Microsoft account

This might seem like an odd fix, however, a couple of users tried doing this and it worked for them as it allowed Cortana to connect to the internet again. In this option, you just have to launch another app that uses your Microsoft account information in the same way as Cortana, for instance, the Store app. Once you open the app, a prompt should appear along with a dialog box that allows you to update your Microsoft account with the information required. After that, restart your computer and check if Cortana is now able to connect to the internet or not.

Option 5 – 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 6 – Reset Cortana settings

• 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.

What is Error 3?

This is a type of Google Chrome update error code. It indicates a failure to communicate with Google update. The error code is displayed in the following format:

‘Update server not available (error: 3)’

Solution

Error Causes

Error 3 may be triggered by several reasons. These include:

• You are running Vista/ 7 and you have configured Google Chrome to run as an administrator
• Google Update is not registered properly
• Registry issues

Further Information and Manual Repair

Here are some of the best and effective DIY methods to resolve error 3 on your PC without any professional help. You don’t need to be a technical whiz to try these methods.

Method 1

If the reason for the error cause is related to Google Chrome configured as administrator on your PC, then simply run it as a normal user. This is a common issue with Google Chrome auto-updating mechanism.

Method 2

If the problem still persists, then it is advisable to try re-installing Google Chrome. To do this, first, uninstall Google Chrome. Go to the start menu, control panel, and then program and features. Choose Add and Remove Programs and uninstall Google Chrome. To activate changes, reboot your system. Now reinstall Google Chrome by downloading it from Google Chrome’s official website.

Method 3

If error 3 is triggered because Google Chrome is not registered properly, then try this method to fix the issue.

1. First, verify that GoogleUpdate.exe exists in the location specified in the Windows Registry Editor. For this, go to the Start Menu and then type Regedit in the search bar.
2. Now click OK. The registry editor will appear. Now in the tree view on the left, navigate to the following directory:
3. HKEY_CLASSES_ROOTCLSID{2F0E2680-9FF5-43C0-B76E-114A56E93598}LocalServer32
4. Make sure the default value corresponds to the location of your GoogleUpdate.exe or GoogleUpdateOnDemand.exe file. Also, verify that these files are located in the given path.
5. For instance, if they are located in different locations, then right-click the default value and select Modify.
6. Enter the correct file path and use double quotation marks for example "C:\Documents and Settings%USERNAME%Local SettingsApplication DataGoogleUpdateGoogleUpdate.exe(or GoogleUpdateOnDemand.exe)"

Method 4

Error 3 may also pop up because of registry issues. These issues occur when the registry gets overloaded with obsolete and unnecessary files like cookies, internet history, bad entries, and junk files. In such an event, it is advisable to download Restoro This is a user-friendly and cutting-edge PC Fixer embedded with a registry cleaner. The registry cleaner removes all the obsolete files instantly and repairs the damaged registry thereby resolving all errors including error 3. Click here to download Restoro and resolve error 3.

As you know, networks that are domain-based are common in organizations and companies. These domain-based networks require multiple computers to be controlled through a single node known as a server. And the one that sets certain policies and restrictions on every system that is joined to the domain is the server administrator. So if you want to add your computer to a domain, you need to have the following information available:

• The domain name
• A user account name that’s registered in the active directory associated with the server
• Windows Enterprise, Pro, or education version

In this post, you will be guided on how you can join or remove a domain. To get started, follow the given instructions below.

Option 1 – Joining a domain

• First, you need to connect your computer to the network associated with the server since your computer and the server have to be on the same network.
• Next, click the Start button and then click on the gear-like icon for Settings to open it.
• After that, navigate to this path: Accounts > Access work or school.
• Then click on Connect. This will open a new dialog box and from there, select the “Join this device to a local Active Directory domain” option.
• Afterward, you will be asked to enter the username and password of your domain account.
• Now select your Account type and when you proceed, you have to restart your computer. Your domain account should now be created.

Option 2 – Removing a domain

• You need to open the Windows 10 Settings app.
• And from there, go to this path: Accounts > Access work and school.
• Next, select the account you want to remove from the domain and then click on Disconnect.
• A prompt will then appear that says, “Are you sure you want to remove this account? This will remove your access to resources like email, apps, network, and all content associated with it. Your organization might also remove some data stored on this device”. Just click on Yes.
• This will give you a Disconnect from the organization prompt.
• Now click on Disconnect and select Restart now to restart your computer. This will complete the removal process of the domain.

Mac OS

A solid reason to switch to Mac from Windows PC is Mac OS. Based on Linux, offers more stability and better security than Windows but you will not be able to find a vast array of applications on it.

Even when Mac OS X (the first big one) was first introduced, it looked and felt like ages beyond Windows (Microsoft just recently made a slick and modern design with Windows 11). Under the hood, it turned out that the operating system itself is stable and incredibly fast & responsive. If you value stability and easiness of use, Mac OS is the Operating system for you.

Apple ecosystem

This one is easy, if you are already invested in apple devices like iPhone and iPad, having an apple computer is one step forward into the apple ecosystem and one more step into easy sharing of documents and data between devices.

Calendars, emails, photos, videos, documents, and many more can easily be shared and synched between devices with a single apple ID making workflows much easier than on other operating systems.

Development

Developers all around the world say that developing on Mac is much better and smoother than on PC, this has probably to do something with OS being based on Linux but whatever the case is, it is much smoother and it just feels better. Apple laptops are often the go-to choice of developers for a reason.

Also if you are in the development business for applications and services aimed at iPhone or iPod then there is no really another way than to be into the apple ecosystem and own apple hardware.

Professional software

A lot of professional-grade software exists for both the Windows platform and Mac OS but there is some software that exists exclusively for Apple hardware like Final Cut Pro or Logic Pro. Both applications are used by professionals and are industry-standard software.

Logic pro is used by industrial audio specialists all around the world and is used in professional studios. Final Cut Pro is also used worldwide by video editors and if you are specializing in any of these two fields Mac seems like a very reasonable platform since the software can not be found on Windows. These two are examples, there are other similar applications that are only available on Mac OS

Longevity

Apple hardware is made of high-quality materials and components and it is proven over time that it lasts longer than usual. There are iPhones out there that have 13 years and they are still working, G3 and G4 Macs that are still functional.

When buying Apple products they will outlive other ones if treated properly so in the end you could be saving money by purchasing them.

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.

Windows defender error 0x800700AA, service can not be started comes when the user is trying to run Windows defender scan on their system. This kind of behavior happens for two reasons mostly, third-party application conflict or corrupted system files. In this article, we will tackle both scenarios and provide you with solutions in both cases.

Third-party application conflict

In this rare scenario when Windows defender can not start scan due to conflict with installed service or application in the system solution is quite simple. Restart your PC into safe mode and run the scan from there. In a safe mode environment, minimum drivers and services are only loaded eliminating any conflicts that might occur when everything is booted. If Windows defender can not run the scan in safe mode and you get the same 0x800700AA error then you can eliminate application conflict as a reason and move to the next solution which will tackle corrupted system files. If you, however, managed to run a scan then you have a rare third-party application conflict, you can boot normally into windows and try to eliminate one by one to see which one is causing the issue. The safest bet would be to start with security software because most of the time that is what causes conflicts in running services and applications.

Corrupted system files

If the previous solution has not provided you with results then you have system file corruption that needs to be fixed. Move from one solution to another as presented below:

1. Run SFC scan

   SFC scan is a built-in Windows tool for solving corrupted system files issues, it is fully automated and does not require from the user any kind of knowledge or information. To run it and scan the system do the following: Press ⊞ WINDOWS + X to open the secret menu Left-click on the command prompt (admin) In command prompt type SFC /SCANNOW and press ENTER Wait for the process to finish, do not interrupt it and once it is done, restart your computer

2. Run DISM scan

   DISM scan is similar to SFC scan but it tackles different types of system file corruption and it is recommended to run it also after SFC has been completed. Please note that for DISM scan to be successful you will need a stable internet connection since DISM will replace corrupted files with new ones downloaded from Microsoft. To run it do the following: Press ⊞ WINDOWS + X to open the secret menu Left-click on the command prompt (admin) inside command prompt type: exe /online /cleanup-image /scanhealth followed by ENTER, then type: Dism.exe /online /cleanup-image /restorehealth also followed with ENTER. Leave scan to finish and reboot your PC