How to Repair Windows 10 Error 0x800F0922

Computer upgrades are the most common and most efficient ones. RAM upgrade is one of the easiest ones you can do and the most common ones but even as simple an upgrade as this one can cause certain issues. If you are experiencing error 0164, memory size decreased after RAM upgrade we are offering you solutions on how to fix this particular error and get your computer back in working order.

1. Change BIOS settings

   Enter your motherboard BIOS (usually by pressing the del key on startup) Load BIOS defaults Save changes and exit If the Error 0164: Memory size decreased issue persists even after loading setup defaults, then it must be configured manually inside the BIOS.

2. Clear CMOS

   Follow the instructions precisely:
   • Turn off all peripheral devices connected to the computer.
   • Disconnect the power cord from the AC power source.
   • Remove the computer cover.
   • Find the battery on the board. The battery may be in a horizontal or vertical battery holder or connected to an onboard header with a wire.
   If the battery is in a holder, note the orientation of the + and – on the battery. With a medium flat-blade screwdriver, gently pry the battery-free from its connector. If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header.
   • Wait one hour, then reconnect the battery.
   • Put the computer cover back on.
   • Plug the computer and all devices back in.
   • Power on the computer.

Error C00D11B1- What is it?

Error C00D11B1 is a type of Windows Media Player error code. The error C00D11B1 hampers your ability to play videos, MP3 files and songs on Windows Media Player. The error is displayed in the following format:

Error C00D11B1:’Windows Media Player can’t play the file.’

Solution

Error Causes

The cause of error C00D11B1 message pop up on your computer can be narrowed down to one particular reason virtually because this error may be triggered due to several reasons, these include:

• Corrupt DRM license
• Enabled codec of the video in Windows Media Player codecs section
• Registry Corruption

The good news is that this error is not fatal and does not pose serious PC threats like runtime and BSoD error codes. However, it is still advisable to resolve to ensure you are able to watch movies and listen to songs on Windows Media Player without any difficulty.

Further Information and Manual Repair

Here are some of the best and effective do it yourself methods to resolve the error C00D11B1 on your PC right away:

Method 1- Disable the codec of the video option in the Codecs Section

If you are unable to play downloaded movie files on your PC on Windows Media Player, then try this method to resolve the issue. Simply open Windows Media Player, Go to Tools, Options, DVD and then click Advanced Tab. Here find the codecs section, scroll down to the codec of the video you are trying to play and see if it says enabled. If it does, then disable it and then select a decorder for the codec. Now try running the video again on your Windows Media Player. This will hopefully resolve the issue. Nonetheless if the error still persists, try method 2.

Method 2- Delete DRM Licenses & cache and Download it Again

Sometimes the error C00D11B1 can also be trigged by corrupt DRM licenses & cache. To resolve the issue, simply delete all files. First open Windows Explorer (Windows key + E) and then go to C:ProgramDataMicrosoftWindowsDRM. Now delete all files in this folder. Once deleted, Let Windows Media Player download your license again. After downloading the DRM license again, run the Windows Media Player to see if it works.

Method 3- Disable Firewall Temporarily

Firewall can also be responsible for blocking the Windows Media Player streaming. Firewalls often block important ports that are required in order to run some programs. If this is the cause, then simply disable Firewall temporarily to resolve the issue.

Method 4- Repair the Registry

Registry is that part of your computer that saves all the activities performed on the PC and all the files too including both important and unimportant files like cookies, junk files and bad registry entries. If these unimportant and obsolete files are not removed frequently, the registry gets corrupt and damaged. And due to this reason you may experience error code C00D11B1 on your system. To resolve this issue, simply repair the damaged registry by downloading Restoro. This is a powerful PC Fixer integrated with a registry cleaner. The registry cleaner removes all unnecessary files, cleans and repairs the registry in seconds. Click here to download Restoro and fix error C00D11B1 on your PC right now!

BringMeSports is a browser extension developed by Mindspark Inc. that lets you watch live sports streams, follow sports scores, and catch up on the latest news from the sports world. BringMeSports installs an extension into your browser that replaces your default home page with the MyWebSearch starting page, it also replaces your default search engine, shows additional ads, and while running, collects personal and web browsing data that is later sent back to be Sold / Forwarded to serve ads. While browsing the internet with this extension installed, you will see additional ads and sponsored links appear in your search results. It may even show pop-up ads. Several anti-virus scanners have marked this extension as a Browser Hijacker and are therefore not recommended to keep on your computer.

About Browser Hijackers

Browser hijacking is a type of unwanted software, commonly a web browser add-on or extension, which causes modifications in web browser’s settings. Browser hijacker malware is created for many different reasons. The idea would be to force users to visit particular websites that are trying to increase their website visitor traffic and produce higher ad income. Although it might appear naive, all browser hijackers are damaging and therefore always regarded as security risks. Browser hijackers can even allow other harmful programs without your knowledge to further damage your personal computer.

Signs of browser hijack

There are various symptoms of browser hijacking. Here are a few of them: 1. you notice unauthorized changes to your Internet browser’s homepage 2. you find re-directed to websites you never meant to visit 3. the default search engine is changed and the web browser security settings have been lowered without your knowledge 4. you’re finding new toolbars you have never seen before 5. you observe numerous ads pop up on the browsers or computer screen 6. your web browser gets slow, buggy crashes frequently 7. you are blocked to access those sites of computer security solution providers.

Precisely how browser hijacker infects computers

Browser hijackers attack computer systems through malicious email attachments, downloaded infected computer files, or by going to infected internet sites. They could also come from add-on programs, also called browser helper objects (BHO), web browser extensions, or toolbars. A browser hijacker could also be installed as a part of freeware, shareware, demoware, and pirated programs. Common examples of browser hijackers include CoolWebSearch, Conduit, Coupon Server, OneWebSearch, RocketTab, Snap.do, Delta Search, and Searchult.com. The existence of any browser hijacker malware on your computer might drastically diminish the web browsing experience, track your online activities that result in troublesome privacy concerns, create system stability problems and eventually cause your computer to slow down or to a practically unusable state.

How you can remove browser hijackers

Some hijackers could be removed by deleting the free software they were included with or by removing any extension you have recently added to your system. Having said that, many hijackers are quite tenacious and need specialized tools to eliminate them. And there’s no denying the very fact that the manual fixes and removal methods can certainly be a complicated job for a novice PC user. Also, there are plenty of risks associated with fiddling around with the system registry files.

What To Do If You Cannot Install Any Anti-Malware?

Every malware is bad and the consequences of the damage could vary based on the specific kind of malware. Certain malware variants alter internet browser settings by including a proxy server or modify the computer’s DNS configurations. In these instances, you will be unable to visit certain or all of the websites, and therefore unable to download or install the required security software to remove the infection. If you are reading this, odds are you’re stuck with a malware infection that is preventing you to download or install Safebytes Anti-Malware software on your system. Although this type of issue will be difficult to circumvent, there are a few actions you can take.

Install in Safe Mode

In Safe Mode, you could change Windows settings, uninstall or install some programs, and remove hard-to-delete malware. If the malicious software is set to load automatically when the computer starts, switching to this particular mode may prevent it from doing so. To enter into Safe Mode or Safe Mode with Networking, press F8 while the PC is starting up or run MSCONFIG and look for the “Safe Boot” options in the “Boot” tab. Once you are in Safe Mode, you can try to install your antivirus software application without the hindrance of the malware. After installation, run the malware scanner to get rid of most standard infections.

Utilize an alternate internet browser to download the anti-malware application

Web-based viruses could be environment-specific, aiming for a particular browser or attacking particular versions of the browser. The most effective way to overcome this issue is to select a web browser that is renowned for its security features. Firefox comprises built-in Malware and Phishing Protection to keep you safe online. Create a portable anti-malware for removing viruses Another option is to create a portable anti-malware program onto your USB stick. To run anti-virus using a USB flash drive, follow these simple steps: 1) Download the anti-malware on a virus-free PC. 2) Insert the USB drive on the same system. 3) Run the setup program by double-clicking the executable file of the downloaded software, which has a .exe file format. 4) Select the drive letter of the pen drive as the place when the wizard asks you exactly where you want to install the anti-malware. Do as instructed on the screen to complete the installation process. 5) Transfer the flash drive from the uninfected PC to the infected PC. 6) Run the Safebytes Anti-malware directly from the flash drive by double-clicking the icon. 7) Click the “Scan” button to run a full system scan and remove malware automatically.

Protect Your PC & Privacy With SafeBytes Anti-Malware

If you are looking to buy anti-malware for your PC, there are lots of brands and packages for you to consider. A few of them do a great job in getting rid of malware threats while some will affect your PC themselves. You need to be careful not to pick the wrong product, especially if you buy a premium program. One of the recommended software is SafeBytes AntiMalware. SafeBytes carries a very good reputation for top-quality service, and clients appear to be very happy with it. Safebytes is among the well-established computer solutions firms, which provide this complete anti-malware application. Using its cutting-edge technology, this application will assist you to eliminate multiples types of malware such as viruses, PUPs, trojans, worms, ransomware, adware, and browser hijackers. SafeBytes has got a variety of features that can help you protect your computer from malware attacks and damage. Let’s check out a few of them below: Robust Anti-malware Protection: With a critically acclaimed malware engine, SafeBytes offers multilayered protection which is intended to catch and get rid of viruses and malware which are hidden deep in your computer system. Active Protection: SafeBytes provides real-time active checking and protection against all known viruses and malware. It’ll continuously monitor your laptop or computer for hacker activity and also provides users with superior firewall protection. “Fast Scan” Abilities: SafeBytes Anti-Malware has a multi-thread scan algorithm that works up to 5 times faster than any other anti-malware software. Internet Security: Safebytes assigns all sites a unique safety score that helps you to have an idea of whether the webpage you are going to visit is safe to view or known to be a phishing site. Lightweight Utility: SafeBytes is a lightweight and user-friendly anti-virus and anti-malware solution. Since it utilizes negligible computer resources, this application leaves the computer’s power exactly where it belongs: with you actually. Premium Support: Support service is available for 24 x 7 x 365 days via email and chats to answer your queries.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove BringMeSports without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised. The following files, folders, and registry entries are created or modified by BringMeSports

RSAT or Remote Server Administration Tools for Windows 10 is a collection of programs for IT experts. It helps in managing Servers from a Windows 10 PC and starting with the Windows 10 v1809 or the October 2018 update, users have to install the Remote Server Administration Tools for Windows 10 as Features on Demand or as Optional Features. The program includes the Microsoft Management Console or MMC snap-ins, Server Manager, consoles, Windows PowerShell cmdlets, and providers as well as command-line tools for managing roles and features that run on the Windows Server. So if you have updated your Windows 10 pc to v1809 or later then the RSAT tool has to be installed as a set of Features on Demand right from Windows 10. You can install RSAT Tools on Windows 10 Enterprise or Windows 10 Professional and once you install it, make sure that you do not install RSAT tools from the Microsoft Download page directly. Step 1: Open Settings and then go to Apps > Apps & Features. Step 2: Next, click on Manage Optional Features. Step 3: After that, click on Add a Feature which will load all the optional features one can install. Step 4: Now scroll to find the listing of all 18 RSAT tools and depending on what you need, click and install them. Step 5: Then go back to where you should see the progress of the installation. Click on the Manage Optional Features page to check the status. Note: If you are well-versed with the command line or automation, you can also install Remote Server Administration Tools for Windows 10 via DISM /add-capability. And when you install anything via Features on Demand, they stay across Windows 10 version upgrades. On the other hand, if you feel that you don’t need a particular RSAT feature, you have the option to uninstall it using the Manage Option Features. However, bear in mind that some tools depend on one another which means that if you uninstall anything that has a dependency, it will only fail that’s why you need to be careful.

To uninstall an RSAT feature, here’s what you have to do:

Step 1: Go to Settings > Apps > Manage Optional Features. Step 2: After that, look for the list of installed feature that appears before this. Step 3: Now select the feature you want to uninstall and go back. If you have some system-related issues that need to get fixed, there is a one-click solution known as [product-name] you could check out to resolve them. This program is a useful and efficient tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For the complete set of instructions in downloading and using it, refer to the steps below.

If you would like your computer to be discoverable on your network and use print and file sharing you will have to change your network profile on your computer from public to private.

Follow the provided guide step by step to change your network profile setting:

Switch to private profile in Windows 10

Locate the Wi-Fi icon in your system tray and click on it. Click on properties on your WI-FI network to open the network menu. Inside the menu in the Network profile section enable the Private option.

Your changes will be automatically saved.

Switch profile to private in Windows 11

Find the WI-FI icon in the system tray and right-click on it, then choose Network and Internet Settings. Network & Internet page with open, find your network name at the top and select properties.

On the WI-FI page, in the Network Profile Type section choose Private. As in Windows 10, your changes will be automatically charged, and you can start using them immediately.

Another way around

If you want to switch back to a public profile follow provided steps but disable the private option.

Experiencing issues while using Remote Desktop connections is not uncommon. One of the issues that users encountered recently while trying to connect to their Remote Desktop network is the error saying, “Your credentials did not work, The login attempt failed”. If you are one of these users, then you’ve come to the right place as this post will walk you through fixing the problem. When facing this kind of problem, the first thing you can try before you do some troubleshooting steps is to verify the credentials. But if you are certain that you’ve entered the correct credentials just like what other users reported, then it’s completely a different matter. Based on the reports, this error is common on newly installed versions of Windows 10 or after reinstalling the operating system which could mean that the problem might be due to the Windows security policies or the username might have been recently modified. The latter case is a possibility especially if you’ve reinstalled Windows 10 and had entered a new username. In such a case, you will really have a difficult time connecting to your Remote Desktop connection since its credentials do not really automatically change. If you’ve verified that your credentials are correct, then now’s the time you troubleshoot the problem with the help of the potential fixes provided below. Just make sure that you follow each one of them in sequence.

Option 1 –Try to run the Network Adapter troubleshooter

To run the Network Troubleshooter, refer to these steps:

• Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
• Next, scroll down and select the “Network Adapter” option from the right pane.
• Then click on the Run Troubleshooter” button.
• After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
• Restart your computer.

Option 2 – Try to change the network profile from public to private

According to some reports, this error occurs on systems where the network profile was set to public. Thus, you need to change the network profile to private to resolve the problem. How? Refer to these steps:

• Go to Start and from there click on Settings > Network & Internet > Status.
• Next, click on the “Change connection properties” option.
• After that, set the radio button of Network Profile from Public to Private.
• Wait for a couple of seconds until the system is done applying the changes you’ve made and then see if you can now connect to the Remote Desktop connection.

Option 3 – Try changing the account username

As mentioned, one of the possible causes for this error is the reinstallation of the operating system. You might have changed the username for the system but it does not really change the username of the Remote Desktop connection as well. Thus, you have to change the username back to what it was before you’ve reinstalled Windows 10.

Option 4 – Try modifying the Windows Security Policy

You can also try to edit the Windows Security Policy as it could help in resolving the error. This Windows Security Policy, when enabled, will not allow non-admin users to log on to the Remote Desktop connection. So if you want to allow non-admin users to use the Remote Desktop connection, then you need to modify this policy. Note that you can only do that if you are the admin of the system yourself.

• Tap the Win + R keys to open the Run utility.
• Then type “secpol.msc” in the field and tap Enter or click OK to open the Local Security Policy.
• After opening the Local Security Policy window, select Local Policies > User Rights Agreement located on the left pane.
• Next, double click on “Allow log on through Remote Desktop Services” located in the right pane.
• And in the next window that appears, select Add user or group.
• After that, type in the username of the intended non-admin user under the “Enter the object names to select” column.
• Once done, click on the Check Names button to fix the username and then click OK to save the changes made.
• Restart your computer.

Option 5 – Use the Group Policy Editor

• Tap the Win + R keys to open the Run dialog box and then type “gpedit.msc” in the field and tap Enter to open the Group Policy Editor.
• Next, navigate to this path: Computer Configuration > Administrative Templates > System > Credentials Delegation.
• Double click on the “Allow delegating default credentials with NTLM-only server authentication” policy setting located on the right pane to edit it.
• After that, shift its radio button to Enabled and click on Show.
• Then type “TERMSRV/*” in the Value box and click OK.
• Now repeat the same for the following policy settings:
  • “Allow delegating default credentials”
  • “Allow delegating saved credentials”
  • “Allow delegating saved credentials with NTLM-only server authentication”

• Once you’re done, restart your computer and see if the problem is fixed.

It is common knowledge that when you open a file that contains viruses, it will automatically infect the operating system. This is why most antivirus programs like Windows Defender won’t allow the opening of a file or execution of any associated program if they detected that the file or program could potentially harm the computer. In situations like this, you may get an error stating, “Operation did not complete successfully because the file contains a virus”. In addition, it is also possible that this error message can pop up even for known programs. To open the program or file that triggered the error, you will be given a couple of options in this post but make sure that the program or file is really safe to open and does not contain any virus. You can open the file or execute the program by disabling the Windows Defender or any antivirus program temporarily. You could also try to add an exclusion in your antivirus program or repair File Explorer or run the Disk Cleanup tool. For more details, refer to each one of the options provided below.

Option 1 – Try to temporarily disable the Windows Defender program

Although you could encounter this error with any antivirus program, it is more common in Windows Defender. Thus, you can try to disable it for a while when you open the file or execute the program. To do so, follow these steps:

• First, click on the Start button and go to Settings > Update and Security > Windows Security.
• Here, select the “Open Windows Security” option located in the right pane.
• After that, click on the “Virus and threat protection” option.
• Next, click on Manage settings under the Virus and threat protection settings.
• Then turn off the switch for both Real-time protection and Cloud-delivered protection.
• Now restart your computer and try to open the file or execute the program again and see if it works.
• Note: Do not forget to enable the Real-time protection and Cloud-delivered protection back in Windows Defender.

Option 2 – Try adding an exclusion in the Windows Defender program

• Open the Windows Defender Security Center from the system tray area.
• Next, click the “Virus & threat protection” option and then open the “Virus and threat protection settings”.
• After that, scroll down until you find the “Exclusions” and click on the “Add or remove exclusions” option.
• Then click the plus button and select the type of exclusion you want to add and from the drop-down list, select Folder.
• Next, navigate to the path where the file or program is located.
• When a User Account Control or UAC prompt, just click on Yes to proceed.
• Now try to run the program or file again and see if it worked. If it did, then make sure to turn on your antivirus. However, if it didn’t work, proceed to the next given options below.

Option 3 – Try to run a System File Checker scan

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 the cause why you’re getting the errors 0x8024a11a and 0x8024a112. To run the SFC command, follow the steps given below.

• Type “cmd” in the Start search and then right-click on the appropriate search result.
• Next, select “Run as administrator” to open Command Prompt with admin privileges.
• 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.

 Now restart your computer and see if the problem is fixed or not.

Option 4 – Run the Disk Cleanup tool

You can also try using the Disk Cleanup tool. To use it, refer to these steps:

• Tap the Win + R keys to open the Run dialog box and then type “cleanmgr” in the field and hit Enter to open the Disk Cleanup window.
• After that, select the drive you want to clean.
• Now click OK to clean the disk and restart your computer.

Well if anyone told me just a few years ago that I will see the day when Microsoft releases a new OS based on Linux I would be very amused, but that day has come. Mariner is the newest OS out of nowhere. Microsoft’s new Linux Distro, dubbed Common Base Linux (CBL)-Mariner, isn’t the type of distro you’d want to install directly on any old machine. It’s primarily meant for cloud infrastructure and edge products. Specifically Microsoft’s Cloud and Edge products. But if you are curious, it’s possible to run. Juan Manuel Rey, a Microsoft Senior Program Manager for Azure VMware, recently published a guide to ISO CBL-Mariner image. With that, you can easily get it up and running. And you can build CBL-Mariner on an Ubuntu 18.04 desktop. So you can try it out since it is free. You can get it from here: https://github.com/microsoft/CBL-Mariner It is obvious that Microsoft aims to set itself as a leader in enterprise server environments with this move and it is very likely that it may succeed or at least give a good shake to its competitors, mainly red hat and Suse which are two dominant distros in that field. Many believe that they can win over by providing regular updates and package delivery via their already established system and that feature could be a turning point for some. In any case, time will tell and we shall see.

Among other things and innovations, Windows 11 brings to the table is the game mode. The game mode is a system designed to release some resources and optimize your system when Windows 11 detects that you are playing games. It also turns off automatic updates while the game is active. The game mode is active at all times and usually, everything works great but in some instances, it can sadly cause some performance issues. If you are one of these unlucky people where game mode is not working as supposed to do, don’t panic, we have a quick guide for you on how to turn it off.

1. Press ⊞ WINDOWS + I to open settings
2. Inside click on Gaming
3. Select Game mode
4. Click switch beside Game mode to turn it off
5. Close settings

Everything will be automatically saved and applied and you should not have any issues from now on. If for any reason you wish to turn game mode back ON, just follow the same steps and turn the switch to ON.

Error Code 0x80073afc - What is it?

Error code 0x80073afc deals with an antivirus program first built into Windows 8/8.1 This error occurs when Windows Defender, the built-in anti-virus software in Windows 8/8.1 and higher, does not start automatically and users attempt to manually start the program. During the initialization period of the program start-up, something goes wrong and users get a 0x80073afc Error message. The error message states there was a problem with the initialization of the program. Windows Defender provides protection of your computer and it is advised by the Microsoft Corporation that you ensure it starts up automatically on every start-up.

Solution

Further Information and Manual Repair

Users have found several manual repairs that have fixed the problem without needing to contact technicians for extra help. While the methods below should solve your problem easily, if this is the first time you have encountered the issue you may want to do a simple restart. This has fixed the problem for some users and is the easiest first troubleshooting move. If it doesn’t work move on to the methods listed below, which are easily completed without extra help.

Before trying any of these methods, please make sure that you are logged into a profile that is listed as the administrator of the computer of his administrative powers enabled. If this is not the case you will not be able to complete the following methods. Please log out and log back in on the administrator profile.

Method 1:

First, check to see if you have a third-party anti-virus program installed on your computer. Some users believe that the built-in Windows Defender program is not powerful enough to handle the safety of their computer so they usually download a third-party program. However, that program may have caused a conflict with Windows Defender and may not allow it to open. If you do have a third-party program installed, try uninstalling it then manually starting Windows Defender.

Method 2:

If method one does not work, you may be infected by malware or a virus that has tampered with the settings on your computer and will not allow Windows Defender to start automatically or manually.

First, open Run by holding the “Win” key and pressing the “R” key. Then type “Regedit”. The program will ask for permission to follow through with this action. Click on “Yes” and the Open Registry Editor will open.

Find the HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionImage File Execution Option and check to see if there are any files similar to MSASCui.exe or MpCmdRun.exe. If there are any file entries that resemble that, you will want to right-click on them before selecting the “Delete” option. If you do not see any entries that match, this is not the issue with your Windows Defender and you will want to try another method.

The Registry on your computer is very important. It helps tell your computer what programs are safe to run, what programs should be run, and what programs should not be run. If it is tampered with by a virus or Malware, multiple system operations can be affected.

However, if you did find similar file names, and you deleted them, try to start Windows Defender manually. If it does not work again, move on to the next method. 

Method 3:

If the first two methods do not work for your issue, and you are still receiving error code 0x80073afc when attempting to start Windows Defender, this step should solve the problem if you have Restore Point installed on your computer, which you most likely do.

For this method, we will be restoring your computer to a previous Restore Point. First, just like in method two, hold the “Win” key and press the “R” key. This will open run. Next type “Rstrui.exe” and click “ok”. After some time, you will see System Restore Windows. Click “Next” and select the restore point that you would like to go back to. After your computer has restored to the point you selected, check to ensure that Windows Defender has started correctly.

If the above methods aren't able to rectify the issue, you might have to download and install a powerful automated tool to get the job done.