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How to Repair BSOD Stop Error code 0xc000021a in Windows 10

Error code 0xc000021a - What is it?

Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c

Solution

Restoro box imageError Causes

There are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:

Computer malware has infiltrated your device.

• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.

• When there are mismatched system files installed or system upgrading process failed or still incomplete.

• Premature unloading of Wbemprox.dll

• Newly installed third-party software is not compatible with the operating system.

• There are corrupted, outdated, or incorrectly configured device drivers.

• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.

• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.

Further Information and Manual Repair

In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately.
However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.

Method One: Convert the Drive or Partition from NTFS to GPT

In order to fix Error code 0xc000021a in Windows 10, you might need to convert the partition or drive from NTFS to GPT. See below for the procedure:
1. Shut down your device then put in the Windows installation USB key or DVD.
2. Boot your device to the USB key or DVD in UEFI mode.
3. Inside the Windows Setup, open a Command Prompt window by pressing Shift + F10.
4. Type diskpart in the Command Prompt window to open the diskpart tool.
5. Type list disk to identify which drive to reformat.
6. Select which drive to reformat by typing select disk in the command prompt. Afterward, type clean then hit

Enter. Once done, type convert gpt to be able to convert the drive from NTFS to GPT. Finally, type exit and press Enter. You can now close the Command Prompt window.
7. Once the partition or drive is converted from NTFS to GPT, the user can now continue the Windows Setup installation.
NOTE: Select Custom in choosing which installation type to use. The drive will then appear as a single area of unallocated space. Choose that unallocated space then select Next. At this point, Windows will now begin the installation.

Method Two: Fix System File Errors

There are times when system files get corrupted or damaged which will result in system failure. If this is the case, you can use a Windows free tool to repair corrupted or damaged system files.

1. Right-click on the Start button then selects Command Prompt (Admin) from the list to open a Command Prompt window.
2. Once the Command Prompt appears, type sfc /scannow then hit Enter. Wait until the process completes. If the process is completed and it doesn’t report any error or issues that remain unsolved, you might want to employ the next method.

Method Three: Reset Windows 10

Resetting Windows will delete all software and user accounts installed in the operating system and will reinstall a fresh Windows.

1. Boot your device using a Windows installation USB key or DVD. Select Repair your computer to locate the Troubleshoot option. Afterward, choose Reset this PC.
NOTE: If the device is able to boot the system, you can reset Windows without using a Windows installation USB key or DVD. You just have to boot the device then navigate to Settings in the Start button. Choose Update & Recovery then select Recovery found on the left pane. Choose Reset this PC option then select Go back to an earlier build and Advanced startup. Select Get Started button found in the Reset this PC tab.

2. Depending on your device’s condition, you can either select Keep my files or Remove everything. Both options will remove all applications installed in the device and will revert to default settings.
3. Choose either Just remove my files or Remove files and clean the drive depending on the situation. If you choose the Remove files and clean the drive option, the procedure will take longer as it will erase all the files permanently. In this case, deleted files cannot be recovered. However, if you don’t want to remove files permanently, select Just remove my files.
4. Once you’ve decided how to reset your system, click on Next once the Warning screen appears. Afterward, choose Reset once prompted. When the process completed, click on Continue.

Method Four: Download an Automated Tool

Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!

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How to Fix Windows 8 Error 0x80070490

Error Code  0x80070490 - What is it?

Error code 0x80070490 occurs in versions of Windows including Windows 8 or 8.1 and Windows 7 or Windows Vista. This error often arises when users attempt to install updates via Windows Update or Microsoft Update.

The main reason for the error relates to the Component-Based Servicing (CBS) manifest which has become damaged. When the error occurs, the Windows device is unable to successfully install updates.

Solution

Restoro box imageError Causes

Error code 0x80070490 might appear for various reasons but is most prominent in the following cases:

  • Attempts to install Windows 8 or 8.1
  • A corrupted Component-Based Servicing (CBS)

Further Information and Manual Repair

The solutions for error code 0x80070490 vary so users may need to attempt each solution to find the best results.

  1. Repair Corrupted Windows Files with System File Checker

The System File Checker (SFC.exe) is a Windows-based utility that enables users to check and repair corrupted or damaged system files. It can also restore missing systems files which can be the cause of errors such as error code 0x80070490.

To repair files, begin scan by swiping the right edge of the screen then opening the search box. Type Command Prompt, right-click this option, then select Run as Administrator. Once the scan begins, wait for the process to be completed then restart your device. Check if the error is resolved by reattempting updates. If error code 0x80070490 in Windows 8 or 8.1 persists on your device, proceed to the solution below.

  1. Perform Clean Boot

A clean boot is one of the best ways to reduce conflict among files – an issue that may arise whenever users update, install or run programs on their Windows device.

To run a clean boot, your device reboots using limited drives and programs. The process allows you to identify which conflict among programs is causing errors on your Windows device.

You can access the clean boot tool by entering msconfig in the search box. Select Services, then System Configuration. Check the Hide all Microsoft services checkbox then select Disable all. Next, go to the Startup tab, click and open Task Manager. After selecting the Startup tab, make sure you right-click each startup program. Click Disable from the context menu then close Task Manager when done. Select OK on the System Configuration menu then restart your machine to clean boot Windows 8 or 8.1.

If the clean boot successfully identifies and resolves issues with corrupted files, you will be able to access updates using Windows Update or Microsoft Update. Error code 0x80070490 will no longer occur. But if that proves unsuccessful, other options are available below including running Windows Update Troubleshooter.

  1. Run Windows Update Troubleshooter

This method can provide a simple solution for users as it verifies whether your Internet connection, network adapter and Windows Update services are functioning properly. However, if you are uncertain as to whether you will be able to troubleshoot, seek assistance from a qualified Microsoft technician.

To run Windows Update Troubleshooter, simply download from Microsoft’s website. Be sure you are downloading the tool recommended for your operating system, in this case Windows 8 or 8.1. After you download Windows Update Troubleshooter, run it to enable the tool to check for and resolve update issues on your device.

  1. Use DSIM or System Update Readiness Tool

The System Readiness Tool or DSIM is another method you can use to correct issues related to error code 0x80070490. This tool checks problems on your system that might prevent your computer from performing Windows updates including issues related to damaged system files.

Once you download and install this tool, it will be able to run automatically. The process may be technical, however, requiring specialized knowledge to successfully download and run the tool. Consider getting assistance from an IT professional in this case. Also, check Microsoft's online resources to download the tool.

  1. Use an Automated Tool

Having an automated tool at hand will enable users to always be prepared. Download a powerful automated utility tool to provide solutions whenever error codes or other problems affect your Windows 8 device.

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Keyboard shortcuts and hotkeys are not working
This post will guide you on what to do if your keyboard shortcuts or hotkeys are not working on your Windows 10 computer. A lot of users use hotkeys as they make things easier for them as they use their computer. However, there are instances when these hotkeys suddenly stop working. It’s actually one of the most common problems with keyboards. And so to resolve this problem, you can try out some suggestions prepared on this post.

Option 1 – Clean the keyboard keys physically

Your keyboard might not be working properly due to some dirt or other corrosion. First, you need to shut down your computer and then unplug the keyboard if you are using a desktop computer and then prepare it for cleaning. After that, use a small cotton ear cleaning tool to get between the creases and clean them. You can dip it slightly in alcohol to make it more efficient in cleaning dust and dirt. And if you can, you have the option to pull apart the keyboard completely and then wipe away all the corrosion from the inside. Once you’re done, put the keyboard back together and then plug it back into your PC. Now turn your PC on and check if the hotkeys are now working.

Option 2 – Try running the Hardware and Devices Troubleshooter

The first thing you can do to fix the problem is by running the Hardware Troubleshooter. Although it won’t make much of a difference, there’s still a possibility that it could automatically fix the problem with these function keys. To use it, refer to these steps:
  • The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
  • After opening Settings, look for the Update and Security option and select it.
  • From there, go to the Troubleshoot option located on the left-hand side of the list.
  • Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
  • After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Option 3 – Try connecting the keyboard to a different USB port

The problem might have something to do with the USB port that’s currently in use by your keyboard. It could be that it’s not working so it makes sense to unplug it and attach it to another USB port. You can also clean the USB port on both ends to ensure that they are not affected by corrosion.

Option 4 – Uninstall previously installed keyboard software

If you have been previously using another keyboard, it might be better if you make sure that the software for the old device has been removed since there are instances when multiple software can cause problems due to similarities in actions.

Option 5 – Update the keyboard driver

You can also update the keyboard driver to fix the problem. There are cases when an outdated or corrupted driver can fix the problem. To do so, follow the steps below.
  • Tap the Win + R keys to open the Run dialog box.
  • Then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
  • From there, look for the keyboard driver and click on it.
  • Next, right-click on the keyboard driver and select the Update driver option.
  • After that, click the “Search automatically for updated driver software” option to proceed.

Option 6 – Reinstall the keyboard driver

If updating the keyboard driver didn’t help, then you might want to reinstall it. How? Follow the steps below.
  • Tap the Win + R keys to launch Run.
  • Type in 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. Look for keyboard driver, right-click on it and then select “Uninstall device”.
  • After that, unplug the device and restart your PC.
  • Then plug your device back in. Assuming your device is connected to your PC, open the Device Manager again.
  • Next, click on the Action button and click the Scan for hardware changes button. That should fix the problem.
Note: You could also completely uninstall the driver and go directly to the manufacturer’s website and download the latest driver for your hardware and then install it.

Option 7 – Enable Human Interface Device (HID) Service

Another thing to consider is the Human Interface Device Service. If this service is disabled, then no wonder why your hotkeys are not working. Thus, you need to enable this service. Refer to the following steps to do that:
  • Tap the Win + R key to launch the Run dialog box.
  • Then type “services.msc” in the field and hit Enter to open Services.
  • After opening Services, scroll down until you see the Human Interface Device service.
  • Double click on HID and make sure that its Startup Type is set to “Automatic” and then click OK.
  • Restart your PC and check if the hotkeys are now working or not.

Option 8 – Try resetting the keyboard

You might also want to try resetting the keyboard as it can also help in fixing the problem. Setting it back to its default state will surely help.
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Windows 10 exploit using App installer
Scammers have decided to target Windows’s 10 App installer process in order to infect your computer and steal your data. windows 10 mail exploitAs in most usual online scams, everything starts with a strange email containing threats and other poorly written and composed speech. At the end of the given email, there would be a link claiming that you, of course, need to read it and follow instructions about the threat, if you click the link it will open a web page where you will have an innocent-looking PDF file with more information about the threat itself. If you click on a seemingly innocent PDF file it will summon Windows 10's AppInstaller.exe tool, kickstarting a download-and-run process that'll put you in a bad place very quickly. From there, you'll have to deal with the dangers of malware BazarBackdoor, including data and credential theft. This kind of scam is nothing new but the interesting thing here is that it uses App installer and by clicking on a link you are opening and giving permission for a malicious crook to use it. So, stay safe and do not click on any links from unknown emails no matter what.
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Fix 0xc00d36cb error in Windows 10
0xc00d36cb error shows up when you are trying to play a video or movie using the default player in Windows. This error can occur due to a glitch in the media player or corrupted system files. in this guide, we will show you how to tackle this issue and fix it.
  1. Run the video playback troubleshooter

    • Click on Start and select Settings.
    • Go to Update and Security.
    • Scroll down and open the Troubleshoot tab.
    • Scroll down and select the Video Playback option.
    • Click the Run the Troubleshooter button.
    • The troubleshooter will perform an initial scan and offer a few options.
    • Select Continue with this troubleshooter.
    • The troubleshooter will scan the system again for driver and codec issues.
    • Follow on-screen instructions and apply recommended fixes.
  2. Reset the Movies and TV app

    • Click on Start and select Settings.
    • Go to Apps and open the Apps and features tab.
    • Scroll down to Movies and TV.
    • Select Movies and TV.
    • Click Advanced options.
    • Scroll down and click on the Reset button.
  3. Create a new user account

    • Click on Start and select Settings.
    • Open Accounts.
    • Open the Family & other users tab.
    • Scroll down to Other users and click the Add someone else to this PC button.
    • In the Microsoft account window, type your email address.
    • If you don’t want to enter an email address and establish a local account, click on I don’t have this person’s sign-in information option instead.
    • Next, select Add a user without a Microsoft account (for a local account).
      • Else, enter your Microsoft account login details.
    • Enter a user name and password for your new account. Also, select a security question and add an answer to it.
    • Once the new profile is ready, log out of your current account.
  4. Check for permission issues

    • Right-click on the problematic file and select Properties.
    • Open the Security tab.
    • Click the Advanced button.
    • In the Advanced Security Setting window, click the Change link.
    • In the Select User or Group window, enter Everyone in the text box.
    • Click the Check Names button.
    • Click OK and Apply to save the changes.
    • Close all the Properties windows.
    • Try playing the file or modifying the properties and check for any improvements.
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How to Fix Run Time Error 429

Runtime Error 429 - What is it?

Error 429 is a type of runtime error. It sometimes occurs when you use the new operator or the CreateObject function in Microsoft Visual Basics to create an instance of a Microsoft Office application. The error code is displayed on your computer screen in the following format:

Runtime Error ‘429’: Active X component Can’t Create Object

Solution

Restoro box imageError Causes

The runtime error code 429 is triggered for several reasons. These include:
  • Mistake in the application
  • Incorrect system configuration
  • Missing ActiveX components in the application
  • Damaged Active X and class application components
  • DLL required by the application is damaged
  • Active X object was not registered properly
  • Corrupted applications
  • Corrupted Windows registry
  • Class ID issues
The runtime error code 429 not only causes you inconvenience as it hampers your ability to access programs but delays in repairing this error code can lead to serious PC damages such as system freezes, crashes, and failures.

Further Information and Manual Repair

To resolve the runtime error 429 on your PC, try the following recommended solutions:

1. Re-register the Application Causing the Error

Identify the Office application causing the error and re-register it. For instance, if Office Excel is the prime cause of the error message pop up, simply re-register it. Click on the start menu and then run. Then type this in “: C:/Program Files/Microsoft Office/Office/Excel.exe /regserver” and press OK. This will hopefully resolve the issue.

2. Go to The Microsoft Windows Script Update Page and Download Microsoft Updated Installation File

This will also assist you in repairing runtime error 429. Simply follow the installation wizard and update your MS Office Applications. The corrupted files and missing components in them would be easily corrected by the update file. However, if this doesn’t work, then this means that the cause is more crucial than you think. It is either related to damaged Active X objects or a corrupted Windows registry.

3. Repair the Active X objects and the Registry

To repair both the registry and the Active X objects in one go, it is advisable to download Restoro. This is an advanced, next-generation, highly and multi-functional PC repair tool. It is deployed with powerful and numerous utilities like a registry cleaner, Active X and class scanner, privacy error detector, and system stability module. The registry cleaner embedded in this repair tool enables you to wipe out obsolete, unnecessary, malicious, and invalid files and registry entries saved in the registry. It frees up your disk space, repairs damaged DLL files and the registry thus resolving the runtime error 429 on your system. The Active X object and Class feature identifies and scans Active X issues on your PC and resolves them right away. Besides this, with this error tool, you can also scan for viruses and also improve your PC performance.

Why Total System Care?

Total System Care is a one-stop solution to resolve all kinds of PC-related issues including the runtime error 429. To run it on your system, you don’t have to be a computer programmer. It is very easy to operate. It has easy navigation and a user-friendly interface. There is nothing complex about it. It is safe and efficient. It resolves all PC issues in a few seconds. You can run it in the background while performing other tasks on your system. Furthermore, it is compatible with all Windows versions. Click here to download Total System Care and resolve the Runtime Error 429 on your system today.
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How to Fix Windows 10 Upgrade Compare Exchange128 Error Message

Compare Exchange128 error – What is it

Some Windows 7 and Windows 8.1 users reported experiencing a Compare Exchange128 error when trying to upgrade to Windows 10. The error reads, “You can’t install Windows 10 because your processor doesn’t support CompareExchange128”. In order to upgrade to Windows 10 (64-bit), the CMPXCHG16B instruction must be present. If you receive this error, this mostly means that your CPU doesn’t have the CMPXCHG16B instruction.

Solution

Restoro box imageError Causes

The CompareExchange128 error normally occurs due to two possible reasons:

  • CPU lacks CMPXCHG16b Instruction
  • Old & Outdated BIOS – Even if your CPU has the CMPXCHG16b instruction, the CompareExchange128 issue can still occur if you have an older BIOS.

Further Information and Manual Repair

One main requirement to upgrade to Windows 10 is for your CPU to have the CMPXCHG16b instruction. You also need the right BIOS version to guarantee a smooth installation. See below on how to manually fix this issue.

NOTE: If you don’t feel confident using the manual methods listed below, it’s highly advisable to get help from an expert technician. If you don’t know someone, you can also use an automated tool to fix this.

Before performing any fixes, try to determine first if the cause of the error is due to your CPU lacking the CMPXCHG16b instruction. You can use a CPU Info tool that provides complete details about your processor, memory, and motherboard. If you’re looking for more in-depth information, you might also try command-line utilities. But, the safest and easiest way to check this is by simply searching online. Try using the search query: <CPU Model> CMPXCHG16b

Method 1 – Update your BIOS

This method will download the latest BIOS from your motherboard’s manufacturer. This makes sure your CPU has the CMPXCHG16b instruction needed to complete the Windows 10 64-bit installation. To update your computer’s BIOS, complete the following steps:

  1. Determine first the current BIOS you have on your computer. Open System Information Windows app and type msinfo32 in the search bar. The BIOS version will appear under the processor speed. Record it somewhere.
  1. Go to the support page of your motherboard’s manufacturer. Find if there’s any update on the BIOS that you’re currently using. If you find one, download the BIOS update file available. Make sure that you’re looking into the right model and you download all the necessary documentation. Otherwise, the BIOS update might not work.
  1. Update your BIOS. Most BIOS update steps are straightforward. Just make sure to follow the steps provided.

Method 2 – Install Windows 10 32-bit version

If updating the BIOS doesn’t work, what you can do is install a 32-bit version of Windows 10 instead of the 64-bit version. Here’s how to do this:

  1. Download and install the 32-bit version of Windows you currently have. If you have a Windows 7 64-bit version, get the 32-bit version of Windows 7. The same goes for Windows 8.1. When you do this, you might want to back up your files first. Remember that installing the 32-bit version works like other installations, and could delete some of your files.
  1. After installing the 32-bit version, go to Updates and install all the necessary updates. This includes upgrading to Windows 10 if you’re asked to.
  1. When you installed the Windows 10 upgrade, you’ll now have the Windows 10, 32-bit version installed. This will be the version activated on Microsoft servers. Despite this, the activated version stored is only applicable to your computer’s hardware, not the version of Windows 10.
  1. Download Windows 10, 64-bit version.
  1. Prepare an empty DVD or USB flash drive. Use Creation Media software then click the Create Installation Media for Another PC option.
  1. Install the 64-bit Windows 10 version you downloaded from Step 4. Make sure not to put anything when you’re asked to input the serial number.
  1. Once the installation is complete, you’ll have the 64-bit version of Windows 10.

Method 3 – Buy a new processor/motherboard

If the above two methods don’t work, there’s a great chance that this error occurs because of an outdated processor/motherboard. Your next possible solution is to buy an updated model that’s fully compatible with 64-bit Windows 10.

Method 4 – Download an automated tool

If all else fails, you might want to consider using this powerful automated tool to quickly fix the problem and any other computer-related issues.

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A Quick Guide to Fixing Ntdll.dll Error Code

Ntdll.dll Error - What is it?

Ntdll.dll is a type of DLL (Dynamic Link Library) error. DLL errors are some of the most common but complicated errors to troubleshoot and resolve by PC users. The Ntdll.dll error message is displayed in the following formats:
  • "STOP: 0xC0000221 unknown hard error C:WinntSystem32Ntdll.dll
  • "NTDLL.DLL Error!"
  • "STOP: C0000221 unknown hard error SystemRootSystem32ntdll.dll"
  • "[PROGRAM NAME] caused a fault in module NTDLL.DLL at [ANY ADDRESS]"
  • "AppName: [PROGRAM NAME] ModName: ntdll.dll"
  • "Crash caused in ntdll.dll!"
  • "Unhandled exception at [ANY ADDRESS] (NTDLL.DLL)"
You may come across the ‘Ntdll.dll error’ pop-up either when you try to run a program or after using it or while the program is running. It may also appear when Windows starts or shutdowns or even during Windows installation.

Solution

Restoro box imageError Causes

The Ntdll.dll error code can be triggered due to numerous reasons such as:
  • DLL file corruption due to hard drive bad entries
  • Missing DLL files
  • Corrupt hardware drivers
  • Viruses
  • DLL file misconfiguration
It is recommended to resolve this error code immediately on your PC to avoid inconvenience and serious PC damages like program lockouts, system failure, freeze, and crash

Further Information and Manual Repair

All the causes for ‘Ntdll.dll’ are linked with the registry. The registry is the main database of your system. It saves all the activities and files on your PC including the important data file and unnecessary files such as the junk files, temporary internet files, and obsolete files, files of the programs installed, bad entries, invalid registry keys, and cookies. These files take up also hard drive space thereby causing dll file damage, disk fragmentation, and data overload. Ntdll.dll error may also occur to due viral infection and malware attack. There are 2 ways to resolve the Ntdll.dll error. One is to install 2 separate tools, the registry cleaner, and antivirus, and run them separately to scan for errors. This option is time-consuming and running an antivirus can also slow down the speed of your computer. Therefore we recommend that you opt for the second alternative that is to download Restoro.

Why Restoro.

  • This is an advanced, innovative, and multi-functional PC repair tool embedded with several powerful PC repair utilities like a registry cleaner, an antivirus, and a system optimizer. This is a one-stop solution for all your PC errors.
  • It is user-friendly, safe, efficient, and compatible with all Windows versions. The registry cleaning feature scans for all registry issues.
  • It wipes out all the unnecessary files from the hard drive, repairs the damaged dll files, and restores the registry, thereby resolving the Ntdll.dll error code right away.
  • The privacy error utility functions like an antivirus. It detects and removes all the malicious software like viruses, malware, Trojans, and spyware. Simultaneously, the system optimizer feature boosts the PC speed.
Click here to download Restoro and resolve the Ntdll.dll error on your PC today!
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Windows.UI.Xaml.Markup.XamlParseException UWP
Although the UWP platform is still new, it is working efficiently and significantly and it’s apparent that Microsoft is betting big on it. It helps developers in building applications for Windows 10 that are more modern and beautiful as well as responsive with the help of the .NET Core and XAML. However, all things considered, it still isn’t perfect and it could still encounter some errors. One of these errors is the Windows.UI.Xaml.Markup.XamlParseException UWP app error. This particular error can occur to any Universal Windows Platform or UWP application and according to security experts, it is due to some XAML parsing error. To fix this error, you can try to reinstall the faulty program or check its privacy settings. You can also run both the Program Compatibility and Windows Store Apps troubleshooters as well as run System Restore. For more information, check out the given options below.

Option 1 – Try to reinstall the faulty application

If you encounter this error in an application that is not a system-related one, then you can just uninstall it from the Windows 10 Settings app and then reinstall it again from the Microsoft Store. On the other hand, if it is a system application like the Camera or Calculator app, you can just uninstall and reinstall it using a PowerShell script.

Option 2 – Try to check the Privacy Settings of the concerned app

You might also want to check if all the Privacy Settings required for a certain application are configured properly as it could also cause issues like the Windows.UI.Xaml.Markup.XamlParseException UWP app error.

Option 3 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job. In addition, you can try to run the Windows Store apps troubleshooter as it can also help you resolve the problem.

Option 4 – Run System Restore

If you have recently made changes in your computer’s settings, you could also run System Restore to fix the Windows.UI.Xaml.Markup.XamlParseException UWP app error. How? Refer to these steps:
  • Tap the Win + R keys to open the Run dialog box.
  • After that, type in “sysdm.cpl” in the field and tap Enter.
  • Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
  • After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.
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Fix Defender, The Threat Service has stopped
There are times when you see a message in Windows Defender saying, “The Threat Services has stopped, Restart it now” when you try to use it. This kind of error is usually fixed by simply clicking on the Restart now button. However, if the error still appears even after you restart your computer and you see another message that says, “Unexpected error, Sorry, we ran into a problem”, then continue reading as this post will guide you in resolving this issue in Windows Defender. Before you proceed with the given fixes below, you have to create a System Restore point first. This way, you can always undo any changes you’ve made in case something goes wrong.

Option 1 – Make sure that the Windows Defender Services are started

The Windows Defender Advanced Threat Protection service is the one that protects your computer from advanced threats by monitoring and reporting security events that happen on your computer. This is why you have to make sure that this, as well as other required services in Windows Defender, are set to their default values and are started. To do so, follow these steps:
  • 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
  • After opening the Services Manager, look for the following services and make sure that their Startup type is set to their default values:
    • Windows Defender Advanced Threat Protection Service – Manual
    • Windows Defender Antivirus Network Inspection Service – Manual
    • Windows Defender Antivirus Service – Manual
    • Windows Defender Firewall Service – Automatic
  • You can right-click on each one of the listed services and then select Start to start them.
  • And if some of the services don’t have their default values, just double-click on the Services to change the Startup types and select the correct option from the drop-down menu of the Startup type under the Properties box.
  • Next, set up the Startup type of these services to Automatic and then click on the Start button if the services are not running yet.
  • Now click on the Apply and OK buttons to save the changes made and then see if it fixed the problem or not.

Option 2 – Try modifying some entries in the Windows Registry

If the first option didn’t work in fixing the problem, you can try to alter some entries in the Windows Registry using the Registry Editor.
  • First, tap Win + R keys to open the Run dialog box.
  • Then type “Regedit” in the field and hit Enter to open the Registry Editor.
  • Next, navigate to this registry path: HKLMSoftwarePoliciesMicrosoftWindows Defender
  • From there, look for the “DisabledAntivirus” and “DisableAntiSpyware” DWORDS from the right pane and change each one of their values to “0”. On the other hand, if you don’t see any of these DWORDS, you can create them instead and give each one of them a 0 value.
  • To create a DWORD, simply right-click on any empty space and select New > DWORD. Then name them both as “DisabledAntivirus” and “DisableAntiSpyware”.
  • Afterward, set the value of the newly-created DWORDS to 0.
  • Now exit the Registry Editor and reboot your PC to apply the changes made and then check if it has fixed the error in Windows Defender or not.
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NVIDIA Control Panel is not opening
Users who constantly use graphic-intensive applications like games or any video-rendering software need to control how their graphics card is used. There are some who always toggle their Graphic Quality settings to get the Frames Per Second or FPS up. While some tend to adjust the size, orientation, scaling, and other display settings in order to use their PCs in a more efficient way or to simply work better. And in all of that, that’s where the NVIDIA Graphics Card comes into the picture. Take note that this software only works on PCs which has NVIDIA Graphics Card attached to them. Thus, if you use another Graphics Card then this post is not for you, otherwise, proceed reading to know what you can do if the NVIDIA Control Panel is not opening on your Windows 10 PC. Here are a couple of things you can try if the NVIDIA Control Panel is not opening, not responding, or not working:
  • Restart the process of the NVIDIA Control Panel
  • Restart the NVIDIA Display Driver Service
  • Update your NVIDIA Display Drivers
For more details, refer to the instructions provided below.

Option 1: Restart the process of the NVIDIA Control Panel.

  • Tap the Ctrl + Shift + Esc keys to open the Task Manager.
  • After opening the Task Manager, look for the process named NVIDIA Control Panel Application.
  • Once you found it, expand it and right-click on the NVIDIA Control Panel sub-process, and click on End Task.
  • Now try opening the NVIDIA Control Panel from the Start Menu and see if it now works fine or not.

Option 2: Restart the NVIDIA Display Driver Service

  • Tap the Win + R keys to open the Run dialog box.
  • Then type “services.msc” in the field and hit Enter to open the Windows Services Manager.
  • After opening the Services window, you will see a list of services. From there, look for services named “NVIDIA Display Container LS” and double click on it to open its Properties.
  • Now make sure that the service is Started. If it isn’t, you need to start it, otherwise, you need to Stop it and Start It again. You also have to make sure that the Startup Type is set to Automatic.
  • Do the same for the NVIDIA LocalSystem Container service.
  • Restart your computer and check if the problem’s fixed.

Option 3: Try updating the drivers from the official site of NVIDIA

If both the first and second given options didn’t work, you can also try updating the drivers from the official NVIDIA website. And in case you don’t know the type of Nvidia graphics card that your computer is on, follow the steps below:
  • Tap the Win + R keys to open the Run dialog box.
  • Next type in “dxdiag” in the field and click OK or hit Enter to open the DirectX Diagnostic Tool.
  • From there, you can see what type of Nvidia graphics card that your system is on.
  • Take note of your graphics card information and then look for the best drivers for your operating system. Once you’ve downloaded and installed the file, restart your PC.
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