One or more Network Protocols are missing

Error 404 - What is it?

Error 404 is a HTTP status code. You may come across the error code 404 while browsing online. The message indicates the web page you are trying to log on to couldn’t be found on the server. This error code is frequently customized by individual websites. Most of the time it is displayed by:

• “404 Error"
• "404 Not Found"
• "Error 404"
• "404 File or Directory Not Found"
• "HTTP 404 Not Found”
• "The requested URL [URL] was not found on this server."
• "HTTP 404"
• "404 Page Not Found"
• “Error 404 Not Found"

The error message 404 can occur in any browser including Firefox, Internet Explorer and Google Chrome. It can also occur is any operating system. In addition to this, the error 404 may also occur during Windows updates.

Solution

Error Causes

Technically, the error 404 is a client-side error that implies you couldn’t access the desired web page because either you typed the wrong URL or either the page has been removed from the website. Other causes of this error code include:

• Junk files in the browser
• Junk registry entries
• Browser cache issues
• DNS server problems

Further Information and Manual Repair

If the error code does not occur due to web page removal from the owner of the website, then this means there is some other underlying issue from the error code 404. To avoid inconvenience and to access the website, it is advisable to resolve the error right away. To help you resolve the error 404 on your PC, we have listed some of the best and easy DIY solutions. Try these methods to fix the issue on your system:

Method 1

Press F5 to retry accessing the web page. F5 is the refresh/reload button. If the error is temporary this will resolve the issue immediately.

Method 2

Check the URL - ‘The error 404 not found’ may also appear because the URL was typed wrong. Search for the page on the popular search engines. Insert the correct URL for the web page you want to access. This will most likely fix the error.

Method 3

Clear your browser’s cache – For this, simply go to the history and clear up your browser’s cookies.

Method 4

Change the DNS Servers - If the entire website you want to access is giving you error 404 and if the site is available to others on different servers then you might want to try changing your DNS server. 404 errors are not particularly common unless your ISP or government filters or censors websites.

Method 5

Remove Junk files and Junk registry entries - Another way to resolve the error is to clean the registry. The underlying cause of the error could be accumulation of the junk, invalid and bad registry entries. You can remove them manually, but that process will require technical expertise and will be quite time-consuming. Nonetheless, the easy and efficient way to clean up the registry is to download Restoro. This is an advanced, highly functional and next-generation Registry Cleaner.

Why Use Restoro?

• It is deployed with a cutting-edge and intuitive algorithm that detects, scans, and removes all the registry issues on your entire PC in seconds.
• This registry cleaner wipes out all bad entries and junk files saved on the disk immediately, fixes the damaged and corrupt files, and restores the registry back to normal.
• Besides functioning as a registry cleaner, this software is also integrated with several other utilities such as an antivirus that removes all kinds of malicious software from your system, a system optimizer for optimum PC functioning, and Active X controls and Class ID scanner.
• It is safe to download, user-friendly and efficient. This error tool is compatible with all Windows versions.

To resolve error 404 on your PC, click here to download Restoro today!

Internal Error 2771 - What is it?

Internal Error 2771 is an internal error code associated with Kaspersky Internet Security and Antivirus software. This error pops up when Kaspersky Internet Security software fails to install on your PC successfully. Installation of the software is interrupted and therefore it ends prematurely. This happens mostly when you try to install a new build on an existing installation. Internal Error 2771 is displayed in one of the following formats:

Internal Error 2771, Sandbox Feature or Internal Error 2771, WholeProduct Feature

Solution

Error Causes

This error may result on your computer screen due to several reasons. Some of the most common underlying causes include:

• A leftover Registry Key
• Bad entries from previous Security Package
• INFCACHE.1 file corrupted
• Conflicts with other security software installed on your system

Further Information and Manual Repair

To successfully overcome this problem and ensure the successful installation of Kaspersky Internet Security software on your system, try the methods given below.

Method 1- Remove the Leftover Registry Key

Sometimes Internal error code 2771 may appear during installation due to the leftover registry key from the previous Kaspersky software removal. A registry key is often created when uninstalling the previous Kaspersky version from the PC. This key is left behind even after you reboot your system. This key is called AVP**_post_ uninstall, you need to delete it to ensure the new version of the Kaspersky program is installed successfully on your PC.  For this, simply go to the start menu and type Regedit in the search bar. Now navigate to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun and then look here for the registry key called AVP**_post_ uninstall. In order to delete this file, right-click it and then select delete. Once uninstalled, reboot your PC and then try installing the Kaspersky Internet Security program again. Hopefully, this will resolve the issue. If the software installs smoothly, then the error is fixed, in case it still persists, then try other methods illustrated below.

Method 2 - Remove the INFCAHCE.1  Corrupt File

Another reason for the error pop-up may be INFCAHCHE.1 corruption. This file is basically used to store driver information and inf file locations. However, if it contains corrupted information, then you must remove it. To do this, go to the start menu and type cmd into the search bar. This will open a command prompt. Here type del C:\Windows\infinfcache.1. Now reboot your PC and try installing Kaspersky software on again.

Method 3 - Fix Software Conflict

Security software conflict can also result in internal error 2771 code display. And when this happens, the installation of Kaspersky prematurely ends. Security software conflict may occur if you have Comodo Firewall installed on your PC. A firewall is known to cause issues with Kaspersky software programs. The best way to resolve this issue is to uninstall all security software programs on your PC. Once all security software is removed, then install Kaspersky on your system. If the installation is successfully completed, then reinstall the other software again.

Method 4 - Download Restoro

Error 2771 can also result on your computer screen if traces of the previously installed Kaspersky software still remain in the registry despite the program removal. In such an event it is advisable to download Restoro. This is a cutting-edge and user-friendly PC Repair Tool deployed with an intuitive interface and a powerful registry cleaner. The registry cleaner scans your entire PC in seconds and detects all registry-related problems. It removes all the bad entries, invalid registry keys, traces of previously uninstalled programs, junk files, and cookies that are known for registry corruption. It takes just a few clicks to perform this process. Once all traces are removed, you can install the new version of the Kaspersky Internet Security program on your PC without interruption. Click here to download Restoro and be on your way to resolve Internal Error 2771 on your computer!

Sharing is caring, an old saying says. I completely agree and that is reason enough for this article filled with sharing goodness. Holidays are coming and I hope that the holiday spirit is strong with you, that you will spend them in peace and with loved ones. All that being said wouldn’t it be great if you can spend some joy with close ones and share some of your games on their account so they can enjoy them as well? Well, you can and it is not complicated as well. Follow this easy guide to see how can you get someone’s account up and running with some of your games.

The steam Family sharing feature

The family Sharing feature inside Steam will let you share your games to another account so owners of that account can play games that you have purchased without the need to buy themselves. You can allow up to 5 accounts and 10 devices to play your library games, and owners of these accounts will have their own achievements. Be aware that enabling this option will place your entire library on the share, you will not be able to choose which games you would like to share and therefore any kind of parental controls are not applying here. Also know that once the game is running on one device, others will have to wait for one playing to finish before they can get a spin on it. Only the owner of the game can play whenever he wants as a priority but others will have to wait for the game to be not run by someone else.

How to Share Your Game Library

In order to share your game library have a person, you wish to share games with at his device on ready to go and enable steam guard on your account. To enable steam guard login into your account and on the top left corner click on Steam and then on Settings. Inside settings click on the Manage Steam Guard Account Security button. Choose the way of authentication either by mail or steam guard mobile app. Check Get Steam guard codes by email radio button and re-login into account.

Sharing Games on another Steam account

Now that Steam Guard is enabled on the primary account let’s share some games!!! Inside client again, in the top left click on Steam and again on settings. In the left panel choose and click on Family. Inside Family section check box beside Authorize Library Sharing on This Computer. Log out of your account and login into the client user account credentials you wish to share your library with (this is your friend or cousin account, they need to log in to Steam client on your computer but with their credentials). After they have successfully logged in, log them out and re-log with your account again. Now go again into Steam > Family and now you should see an account in the box at the bottom with the user name or your friend or relative. Confirm that this is an account that you wish to share the library with by clicking on the checkbox next to the name. Now let users login into the desired device with their credentials and they will have access to your entire library. Happy gaming!

1. Open the Steam app and select Add a Game.
2. Click Add a Non-Steam Game and choose Browse.
3. Access: C:\Windows\
4. Then, scroll down, open explorer.exe, and click Add Selected Programs.
5. Hold Windows + R keyboard shortcut, type shell:AppsFolder, then press Enter.
6. Select the game you want to add, right-click on it, and choose Create Shortcut.
7. Right-click on the desktop shortcut, go to Properties, type in Target Type or Target, delete the shortcut.
8. Go to Steam, access Library, select Games, right-click on the game explorer, choose Properties, choose the name of the game you want to add.
9. Choose Select Launch Options, write: shell:AppsFolder\<Target Type or Target Here>
10. Click OK, then Close.

If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

The failure of MS Vista or XP to execute an Input or Output Signal activity is that which we refer to as an  I/O device error. This malfunction takes place when MS Vista is not able to execute activities for example reading and duplication different kinds of information from the disk or drive.

Solution

Error Causes

• A piece of destroyed hardware equipment: You are getting messages informing you about the I/O device Malfunction when your Computer features an equipment apparatus that Windows is not able to utilize.
• Broken/Faulty hardware Apparatus: If for whatever reason the equipment hardware is broken at all, or includes a flaw, you will also get such messages suggesting the existence of an I/O device error.
• Incompatible/Broken Hardware Drivers: Such malfunctions are frequently the result of incompatible or broken equipment drivers.
• Cable Link Problems: Technicians have determined the existence of link trouble, for instance, a cable that's in a bad situation, as another variable that can also cause these error messages.
• Terrible/Dusty CD or DVD Disc: Yet another variable that's frequently accountable for the I/O device error is a broken CD or DVD disc. If it has not been cleaned by you, and in case the disc is dirty, prepare yourself to receive such messages often.

Further Information and Manual Repair

You should not stress yourself ill over the I/O Device Malfunction when it occurs on your own Computer. You can really fix it. First, before you spend lots of cash on the problem and sprint off to find a technician, reboot the pc. Subsequently, strive to obtain the push or disc, that you were not able to formerly. Second, clean the disc. Locate a great cleansing agent, and execute this. Utilize another pc to access the disc which you're incapable of using on the present pc. If it opens on another pc, then the disk is functional and should work on your computer as well. Let's assume that you lack another pc, search for a distinct disc, and strive to start it with your current pc. If the problem is not with the computer, the fresh disk should open and you can access the contents. If you fail completely, you're totally within your rights to move searching for a tech to repair the situation, if you attempt every one of the preceding choices. You could also do these aI/O device sections to view if you would repair the problem yourself. a) Network Cable Connections: Clearly, this is really something you can do without requiring a tech. Always check to see whether the networking and computer cables are well-connected. If you believe it's broken in case utilizing an exterior push, you could change the cable with yet another one. For inner cabling, unless you've high-level pc abilities, you shouldn't make an effort to change them. b) Attempt a Clean Boot of the PC: You can do this by yourself. Likely, the driver or software is incompatible together with the drive available on the PC. Clean boot up the pc is similar to configuring MS Windows. If the error is fixed following the preceding action, then it indicates your pc features a driver or software which is incompatible with the rest. c) Recognize the IDE Channel Attributes, and Adjust the Transfer Mode: It's feasible that you, or somebody otherwise, changed the Transfer Mode, which makes it challenging/impossible for the transport of information in the disk of your PC. If you understand the I/O Device right transfer mode, and if this occurred, just change it. Don't attempt a change or alter the Main IDE Channel. d) Check the Condition of Device: Confirming the working nature of the hardware device, which you may do under Device Manager, may inform you if it's operating right or not. e) Search the Manufacturing Company: When the rest fails, and you've likely employed a tech that can't solve the problem, you need to contact the producer, or check out their site, and see when there is an upgrade. It's possible to obtain to resolve the I/O Device Error, once for all through a simple upgrade.

When you upgrade your Windows 7 or Windows 8.1 system to Windows 10, you’ll undergo a phase called Out of Box Experience, or simply OOBE. This phase is intended to allow users to customize their Windows 10 experience, which includes defining personal settings, creating user accounts, and more. Some users reported having issues when creating their user account during the Out of Box Experience (OOBE) on Windows 10 upgrade. Some also reported issues about non-responsive behavior (Welcome Back) page.

Solution

Error Causes

Unfortunately, there’s no known cause for this error. However, some users reported that this occurs when:

• There’s a problem with the ISO or CD used to install Windows 10
• There’s hardware malfunctioning on the computer

Further Information and Manual Repair

Your Windows 10 upgrade will not be successful if you’re not able to create a user account or finish the Out of the Box (OOBE) phase of the installation. Here are some methods that will help you fix this manually.

Method 1 – Wait and retry

Some users reported that waiting for about an hour and retrying the process again will solve this problem. It’s also recommended that you keep your computer in a ventilated place while you wait to retry the process.

Method 2 – Load default user manually

This method has 2 requirements in order to work.

1. You need to be upgrading from a previous Windows version, and
2. Your Windows was originally configured to automatically boot to desktop

If you meet these two requirements, you can solve the error by following the steps below:

1. Hold CTRL+ESC keys. Windows should load the default user after doing this step.
2. Press the Windows key + X. Then, click the Computer Management icon
3. Choose “Local Users and Groups”
4. Double click on Users
5. Right-click on the right pane, and then choose “New User”
6. Create a new user account and password

Method 3 – Power down your laptop

This method only applies if you’re a laptop user.

1. Power down your laptop
2. Remove the battery of your laptop
3. Wait for about 10 minutes
4. Connect your laptop using direct current
5. Turn on your laptop again
6. Create a new user account and log in

Method 4 – Create a local account if you’re trying to set up a Microsoft account

Instead of connecting to a Microsoft Account after the set-up, you might want to try creating a local account. To do this, follow the steps below:

1. Power down your computer if you are to set up a Local Account.
2. Disconnect your computer from the Internet, either Wired or Wireless
3. Unplug your computer, and wait for about 10 minutes.
4. Reconnect your computer and start Windows. Do NOT connect to the Internet and make sure you’re disconnected to any devices you don’t need.
5. Try creating a user account again

 If the steps above don’t work, you might want to try Startup repair.

Method 5 – Boot your computer from Windows 10 media

In order to do this step, you need to have official Windows 10 ISO files.

1. Go to the “Install Now” screen
2. Choose Repair your computer
3. Click Advanced Options
4. Click Safe Mode

After doing the steps above, there’s a chance you get an error message that says “installation cannot be completed in safe mode”. When you see this, just press Shift+F10. This will execute and open the command prompt of your computer.

 From the command prompt, you can try and create a new user account.

 For example, net user Username Password /add

 The username here should be replaced with the account name you want to add, and the Password here should be replaced with the password you want to use for the account.

 After replacing the username and password on the text, press the Enter button on your keyboard. You’ll know if the command is successful once you see the message, “The command completed successfully.”

You can now close the command prompt. Restart your computer and try to log in using the account you just created.

Method 6 – Use a powerful automated software

If all the above methods still don’t work, it might be best to try automated software to help you fix this problem.

VSSControl: 2147467259 Backup jobs failed. Cannot create a shadow copy of the volumes containing the writer’s data. VSS asynchronous operation is not completed. Code: [0x8004231f]

This message pops up when you are creating a snapshot system restore, usually, the issue is tied with insufficient space or service stopping. We will go into detail about how to fix both so you can finish the operation without any issue.

1. Check Volume Shadow Copy Services

   Easier and faster fix than the next one. Launch Services from the Start Menu, look for Volume Shadow Copy, double-click on it, and check the Service status. If it is stopped, click on the Start button. If it’s running, restart it by clicking Stop > Start.

2. Increase Shadow Storage Space

   If the first fix didn’t resolve the issue then you need to increase Shadow Storage Space. Launch Command Prompt as an administrator. Now, type the following command to check your Shadow Storage Space. vssadmin list shadowstorage Now, type the following command to allocate more storage (you can change 10GB with the amount of space you want to allocate) vssadmin resize shadowstorage /For=C: /On=C: /MaxSize=10GB

In case you don’t know, there is a built-in tool in Windows 10, known as Reliability Monitor that provides a day-to-day snapshot of the health of your system. It warns users of any looming issues or disasters before your computer breaks down finally. So obviously, Reliability Monitor is useful, however, there are times when it could behave incorrectly. For instance, it might fail to show you any updates even when they are installed. Thus, if you experience any malfunctions with the Reliability Monitor tool in Windows 10, read on as this post will guide you in updating or working in Windows 10. To fix the problem with the Reliability Monitor, there are several fixes you can check out. You can try to enable the data collection for Reliability Monitor or reset it, as well as put your computer in a Clean Boot State. For more information, refer to each one of the options given below.

Option 1 – Try to enable the Data Collection for Reliability Monitor

The Reliability Monitor tool uses data provided by the RAC Agent scheduled task and it will start to display a Stability Index rating and specific event information 24 hours after the system installation. The RACAgent scheduled task, by default, runs after the operating system is installed. And if it is disabled, it must be manually enabled from the Task Scheduler snap-in for MMC or Microsoft Management Console. Thus, you need to enable the Data Collection for Reliability Monitor to fix the problem.

Option 2 – Try to reset the Reliability Monitor

The next thing you can do to fix the issue with the Reliability Monitor might want to reset it to resolve the problem. If the Reliability Monitor is already open, you have to close it and open it again. After the reset is done, it may take up to 24 hours for the Reliability Monitor to display results again. This should fix the problem.

Option 3 – Troubleshot the problem in a Clean Boot State

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

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

Error Code 0x8007232B (Code 0x8007232B) – What is it?

Error code 0x8007232B (Code 0x8007232B) is an error that occurs when you attempt to activate Windows Server 2008 or Windows Vista.

Common symptoms include:

• Attempting to activate Windows 7, Windows 8, or Windows Server 2012 and you receive an error message.
• The error message says: “Windows could not be activated. Key management services host could not be located in domain name system, please have your system administrator verify that a KMS is published correctly in DNS”
• The error message says “The directory name, file name, or volume label syntax is incorrect”.

Error Causes

• Error Code 0x8007232B occurs when you attempt to use media that is volume licensed to install: Windows 8, Windows 7, Windows Vista Enterprise, Windows Vista Business, Windows Server 2012, Windows Server 2008, Windows Server 2008 R2.
• This error code also occurs when the activation wizard is unable to connect to a Key Management Service host computer.

Further Information and Manual Repair

Error code 0x8007232B can be seen when you are trying to activate windows, on several different operating systems. This problem can usually be easily corrected, but in the event that it can't, please contact a computer repair technician. When you try to install any of the previously mentioned Windows products, they use a generic product key to install the volume-based license software. If you do have a KMS host computer configuration and see these error codes, that means the correct DNS entries are not being seen on the computer. If there is not a KMS host computer setup, you need to do this setup, otherwise switch to a MAK product key method, and activate the volume license installation that way.

Method One:

Using a Multiple Activation Key as opposed to KMS activation

1. Click the Start icon, click on All Programs, click on Accessories, right-click on Command prompt.
2. Click on “Run as administrator”. Type in the password or provide confirmation if prompted for administrator password or confirmation.
3. When asked for the command prompt, enter in the following and then hit the Enter buuton: slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx  Note: this placeholder represents the MAK product key.

Method Two:

Configure a KMS host server for the clients to activate against.

A KMS host server needs to be configured for the clients to activate against. When there are no KMS host servers configured near you, install and activate a KMS server key. After this, configure a computer on the network to host this KMS software and publish the Domain Name System (DNS) settings.

Method Three:

When the client cannot locate a KMS host on the network for activation:

1. Verify that your computer has the KMS host installed and activated by using a KMS key that is registered in DNS. You will follow these steps to do that:

1. Click the Start button, click on All Programs, click Accessories, and then right-click on Command Prompt.
2. Click on Run as Administrator. Type the password or provide confirmation if you are asked for an administrator password or for confirmation.
3. In the command prompt box, type the following command and press ENTER: nslookup -type=all _vlmcs.tcp>kms.txt
4. Then open the KMS.txt file generated by this command. The file will contain at least one entry that relays the SRV service location.

2.  A KMS host server registers a DNS SRV record once every 24 hours by default. You should check the registry to see if the KMS host server is registering with the DNS. Follow these steps to do so:

1. Click on Start, type in regedit, and then press Enter.
2. Locate HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsNTCurrentVersionSL and then click on it.
3. The KMS server does not register in DNS if the DisableDnsPublishing subkey is existing and has a value of 1. If this subkey is missing altogether, create a DWORD value called the DisableDnsPublishing. If the dynamic registration is suitable, the subkey value should be changed to 0. Right-click DisableDnsPublishing, click on Modify, enter 0 into the Value data box, and click OK.

The Blue Screen of Death error or BSOD is definitely not an issue to face on your computer. Many users, if not all, have already experienced this headache at least once. One of these BSOD errors is the ATTEMPTED EXECUTE OF NOEXECUTE MEMORY error. The bug check error code for this is 0x000000FC and is usually caused by outdated or faulty drivers. In some cases, it could also be caused by an error in the Random Access Memory or RAM. This kind of error in the RAM might be physical, based on drivers, or even some kind of unwanted malware. So basically there are lots of possibilities why this particular BSOD error pops up. If you are currently facing this BSOD error, read on and carefully follow the suggestions given below but before you do that, make sure to create a System Restore point just in case something goes wrong. This way, you can always undo those changes using the System Restore point. Once you have that covered, proceed to the options given below to fix the ATTEMPTED EXECUTE OF NOEXECUTE MEMORY error.

Option 1 – Try updating Windows 10 with all the security patches and updates

You might be able to fix the ATTEMPTED EXECUTE OF NOEXECUTE MEMORY error by simply updating your Windows 10 computer with all the security patches and updates. To do so, go to Settings then proceed to the Windows Update section > Update & Security > Windows Update, and then click on the Check for Updates option. After you do that, it will automatically find and install all the latest security patches and feature updates from Microsoft.

Option 2 – Try updating all your drivers

From time to time, drivers get corrupted or outdated so it’s no surprise that they conflict with the operating system and cause errors like the ATTEMPTED EXECUTE OF NOEXECUTE MEMORY BSOD error. To fix the problem, you need to update all your drivers. Follow the steps below to update your 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. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• Restart your PC.

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.

Option 3 – Try running a Memory Check using Windows Memory Diagnostic

As mentioned, this error might be caused by some issues in the memory. To resolve it, you need to run the Memory Check on your Windows 10 PC. Refer to these steps to do so.

• Tap the Win + R keys to open the Run dialog box.
• Then type “mdsched.exe” in the field and hit Enter to open the Windows Memory Diagnostic.
• After that, the Windows Memory Diagnostic will give out two options such as:

1. Restart now and check for problems (recommended)
2. Check for problems the next time I start my computer

• Select any of the given options. After that, your computer will restart and check for memory-based issues upon the restart. If there are any issues, it will automatically them.

Option 4 – Try using the System File Checker via Command Prompt

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 ATTEMPTED EXECUTE OF NOEXECUTE MEMORY BSOD error. 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.