How to Fix Fatal Error c000021a

Whether you’re using Windows Update or upgrading or installing on your Windows 10 computer, you can’t really tell if things will go smoothly as there are times when you might encounter some issues that prevent you from completing the update or upgrade or the installation. One of the errors you can encounter is error 0x80070057. Usually, when you receive this error, it means that one or more arguments are not valid. You can encounter this error in the following cases:

• Windows Update, Upgrade, or Installation
• Windows Backup, The parameter is incorrect
• Partitioning a Disk
• System Image Restore error 0x80070057
• Downloading Windows Store apps

Keep in mind that the troubleshooting steps you need to take will depend on the scenarios you are in. Thus, you need to go over each one of the troubleshooting options given below and make sure to carefully follow each one of them but before you proceed, you have to create a System Restore Point first.

Option 1 – Run the Windows Update Troubleshooter

The first thing you can do to fix error 0x80070057 is by running the Windows Update Troubleshooter. It is a built-in tool in Windows that helps users resolve any issues with Windows Update. All you need to do to run it is go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button.

Option 2 – Use the Registry Editor

If you get the error 0x80070057 during Windows Backup, then you need to make some modifications to the Windows Registry. To do so, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• Type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to the following registry key:

HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftSystem

• Then create a new DWORD value and input “CopyFileBufferedSynchronousIo” as its name and put “1” as its value.
• Close the Registry Editor and restart your computer then check if the error is fixed or not.

Option 3 – Run the DISM tool

Running the DISM Tool helps in repairing the Windows System Image as well as the Windows Component Store in Windows 10. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Note: If it happens that the Windows Update client is broken, you need to run the following command to repair it then restart your PC and click on Update once again.

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:RepairSourceWindows /LimitAccess

Option 4 – Flush the contents of the SoftwareDistribution folder

You have to stop a couple of services such as BITS, Cryptographic, MSI Installer, and Windows Update Services. And to do that, you need to flush the contents in the SoftwareDistribution folder. The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. Aside from that, it also contains all the Windows Update History files and once you delete them, you will most likely lose the Update history. As a result, the next time you run the Windows Update, it may result in a longer detection time.

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

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

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

Option 5 – Reset Windows Store Cache

• Right-click on the start button and click on Command Prompt (administrator).
• Next, type in the command, “wsreset.exe” and tap Enter. Once you do, the command will clear the cache for the Windows Store app.

Option 6 – Run SFC scan

Running the SFC scan or System File Checker might also help in fixing error 0x80070057.

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

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.

HP Printer Spooler Not Running - What is it?

If you have the HP printer, then you may come across this error. HP Printer Spooler not running errors does not mean there is anything wrong with your printer. It indicates printer driver issues.

Solution

Error Causes

There can be multiple causes behind the HP printer Spooler not running error code such as:

• The poor or unsuccessful printer driver installation
• Invalid registry entries

Though this is not a critical error code as it does not pose serious damage threats to your PC, however, it is advisable to resolve it as it can cause you a great deal of inconvenience especially if you want to take out printouts every now and then.

Further Information and Manual Repair

Here are some ways you can try to resolve HP Printer Spooler Not Running Error on your system: 1. Reinstall the HP Printer driver on Your System

• Simply go to the control panel and then click on the Device Manager option
• Once you click it you will see details pane with a list of devices. Now simply click on the printer, to reinstall the driver software.
• Double click on it to open the properties dialog box
• After that click on the driver tab and then click update driver

Once you update the driver, try using the Printer to see if it works. Sometimes you may come across a pop-up displaying the following message: ‘Driver installed correctly, Device is ready to use however, you may not see the printer under the printer’s pane. This triggers registry issues. 2. To resolve registry issues, install Restoro on your system. This is a highly functional registry cleaner integrated with a powerful antivirus. It helps resolve registry issues, malware, and guarantees system optimization. This feature-filled tool is the answer to all your PC-related issues. Restoro is a next-generation PC repair software that extends outstanding usability and helps PC users resolve errors efficiently. Its simple navigation and user-friendly interface make it so easy to use that even novice users can also work around it and repair issues without any hassle or difficulty. It’s a smart and intuitive in-built registry cleaner that wipes out all the unnecessary and obsolete files on your hard disk. This includes junk files, internet history, invalid registry keys, and files from the uninstalled old program versions. Sometimes the files from the uninstalled programs hamper your ability to update new program versions thus leading to unsuccessful driver installation. Nonetheless, all such files are removed in seconds with this helper and you are then ready to reinstall the driver. This registry cleaner cleans the clutter from your hard disk and optimizes your system's speed, lowering your PC boot time significantly. Total System Care can be used on all Windows versions To fix the HP printer spooler not running error on your computer, simply click here to install Restoro. Run it to scan for the error and fix it in seconds. Once the issue is resolved, update the printer driver. You’ll see the driver will be updated successfully and the HP printer will also appear in the printer’s panel. By installing Restoro on your system, you can also resolve several other issues like privacy errors triggered by malware and virus infections. With this tool, you will not have to download and run a separate anti-virus on your system.

Hello everyone and welcome to another great tutorial from errortools.com I hope everyone is feeling great and that you are prepared to boost the performance of your computer. This time we will speed up Windows startup time and overall performance by eliminating startup programs that we don't need and do not use. Microsoft itself and some application developers tend to have some applications or some services always active and set to be loaded on Windows startup. If you want to change which of these applications are starting up with your Windows and change them, follow this easy guide and you will be speeding up your Windows in no time. First thing is to open a task manager, fastest and most direct way of doing this is with a keyboard combination of CTRL + SHIFT + ESC When Task Manager opens, click on the startup tab on top. Once you click on startup you will get a list of applications that are set to be started when Windows is booted. You can now click on the application and then click on disable on the bottom button, the application status will update in task manager to disabled and it will not be booted anymore when Windows starts. In this same manner, you can enable back some applications if you changed your mind about them. Please note that some applications are using some services and must have them running or they will not work properly. The best practice is to disable applications you are positive you will not use or use rarely so you do not want them to slow down Windows.

Can’t Find Games on Twitch is a common error happening to a vast variety of people. The issue can be traced back to browser issues to others like malware infection. In this guide, we will provide you with common fixes on how to overcome this issue so you can continue watching your favorite streamer.

1. Sign out of Twitch, then sign back in

   If it is a browser issue or some glitch in the Twitch system simply signing out and then signing back in will solve the issue since information about the account will be resent to the twitch platform.

2. Refresh the application

   Sometimes servers are having high traffic and can get overloaded, refresh the application in the upper left corner to reload content.

3. Use browser instead of Twitch application

   If you are still having issues with the application, open the twitch website and access content there.

4. Close twitch

   But in task manager. Sometimes just closing it via the X button is not enough, some glitches stay and the application is still running in the background. Open task manager and close it from there.

5. Scan system for malware

   Scan the entire system for malware, various malware can halt twitch and cause issues.

6. Reinstall application

   If everything else failed, reinstall the application.

When we initiate the copy or move files command we get a dialog that shows us the progress of the current operation, under that bar we can click on the little arrow to expand the bar into so-called more details view where we get more information like which file is being copied, more detailed graph, etc. Windows will remember the last option we had and next time when we start the same process it will open the last view. But what if we want to only have one view always open as default, even if we change it? Let's say that we always want to have a detailed view opened always as our default even if we switch to a minimal one? Well with some tweaks in the registry of Windows we can. Note that this guide will require changing things in the registry of Windows itself, it is always smart and recommended to make a safe backup of your registry, just in case.

FOR ALWAYS SHOW MORE DETAILS FOLLOW THIS GUIDE:

open notepad and paste the following code inside: Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\OperationStatusManager] "EnthusiastMode"=dword:00000001 Go to File > Save as... and once the file save dialog opens choose at the bottom all files under file type. Save the file with extension .REG naming it whatever you want. Right-click on file and choose Merge, confirm with YES and you are done, now each time when you start copy or move operation details view will be open.

FOR ALWAYS SHOW FEWER DETAILS FOLLOW THIS GUIDE:

open notepad and paste the following code inside: Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\OperationStatusManager] "EnthusiastMode"=dword:00000000 Go to File > Save as... and once the file save dialog opens choose at the bottom all files under file type. Save the file with extension .REG naming it whatever you want. Right-click on file and choose Merge, confirm with YES and you are done, now each time when you start copy or move operation minimal details view will be open.

We’ve already covered disabling Security Questions If you want to disable Security Questions on your Windows 10 computer then you’ve come to the right place as this post will guide you in doing exactly that. In this post, you will be disabling Security Questions using a PowerShell script. This PowerShell script is called “Update-AllUsersQA”. It is designed to remove or disable the security questions and answers for local users on a Windows 10 computer. It lets administrators take control of the security questions in the environment and at the same time minimizes the risk that comes with them. If a user has a Microsoft account that’s configured to sign in to Windows 10 then he will not probably notice the Password Recovery questions. On the other hand, if he has a chosen local account for installing Windows, he will e prompted to create three security questions that can be used to reset the password and log into the Windows 10 account in case there is any misfortune. However, if you do not have much use for these Security Questions, then you can definitely have them disabled using a simple PowerShell script which you can download from GitHub. For more details on how to disable security questions in a Windows 10 machine, refer to the steps provided below. Step 1: You need to first download the .ps1 file from the GitHub repository. Step 2: Once you’ve downloaded the file, open the PowerShell window with admin privileges. Step 3: After that, navigate to the folder where you had saved the .ps1 file. Then copy the address of the folder location. Step 4: Next, change the directory by using the following command:

cd "folder location address"

Step 5: After that, enter the following script to disable the security questions:

Update-AllUsersQA

Once you’ve completed the steps above, the Security Questions should be disabled and you will be notified with a message stating that the feature has been disabled. On the other hand, if you have a change of heart and you want to enable the Security Questions back, here are some steps you need to take: Step 1: First, open the PowerShell window as admin. Step 2: Next, run the same script with one more parameter such as:

Update-AllUsersQA -answer SecretAnswer

Step 3: And that’s about it. Do not forget to replace the Secret Answer with your preferred one and once you’re done, it will be set as the answer for all the Security Questions. Step 4: Now all that’s left to do is go to the Settings app to change the answer to the questions and you should be good to go.

Can’t connect to this network Internet connectivity issues present a complex problem with simple solutions for PC and laptop users. First, it is usually recommended that users rule out problems with the internet connection, router, and Wi-Fi settings before proceeding to troubleshoot settings on your PC/laptop. Once the rest are ruled out, we can then proceed with the following troubleshooting steps and guidelines to fix your wifi connection issue: The first step is to update your windows network adapter driver. Connectivity problems may arise if your network driver is not updated or if it is incompatible with the network adapter. To do so, you may resort to any third-party driver scanning and installing programs found online. This solution should have resorted if users don’t want the hassle of perusing through windows settings that users may not be familiar with. However, this solution requires a pre-existing internet connection other than wifi, so it is recommended you have a backup internet connection via ethernet.

The second step is to uninstall the driver for your network adapter. This solution is to be reported if there is an issue with the driver as restarting the PC after the following steps let windows reinstall the driver again:

• Open the quick access menu on your keyboard by pressing the Windows key and X key at the same time and select “Device Manager” from the menu list.
• From the list of devices, select “Network Adapters”
• Usually on the top of the list is the Wireless Network Adapter
• Right-click the Wireless Network Adapter and select the option to “Uninstall device”
• You will be given a confirmation in a new separate window to proceed. Click “Uninstall” to proceed.
• After completing the previous steps, try rebooting your Windows PC and reconnecting to see if it works.

A third step is to disable the 802.1 1n modes of your network adapter by following the next steps:

• First press the Windows logo key and the X key at the same time to bring up the quick-access menu. And like the previous step, select “Device Manager”
• From the list of devices, select “Network Adapters”
• Right-click the Wireless Network Adapter from the drop-down menu and select properties
• Under properties, select the “Advanced” tab then select the 802.1 1n Mode. To the right drop-down menu change the option to  “Disabled” and click “Ok”
• After, try to re-establish the connection to see if the steps have worked.

In the event that any of the preceding did not fix your problem, it helps to take a second look at the router and network settings using the interface provided by your ISP. A simple reset to the back of your router often fixes the issue. Also, try to check if you have any other administrative capabilities over the network to determine whether your device, in particular, has been MAC filtered or if the frequency of your wireless adapter is not compatible with the broadcast frequency of your router.

The NVIDIA Control Panel is a useful tool for users who have NVIDIA graphics on their PCs as this tool allows users to how the graphics card is used on the computer using several controls that come with the graphics card from NVIDIA. Thus, it can be quite inconvenient when it suddenly crashes all of a sudden for some reason. This kind of problem could be due to the toggling of Output Dynamic Range is limited, or there could be some issue with the integrity of the Power Supply for the graphics card, and many more. So if you are using NVIDIA on your computer and its Control Panel keeps on crashing on your Windows 10 computer, then you’ve come to the right place as this post will guide you in sorting the problem out. For more details, refer to the guidelines laid out below.

Option 1 – Try to toggle the Output Dynamic Range

The first thing you can do to fix the problem is to toggle the Output Dynamic Range by following these steps:

• Navigate to this path: Display > Change resolution.
• Next, scroll a bit on the right-side panel until you see the Output Dynamic Range drop-down.
• After that, select “Full” from the drop-down menu.
• Apply the changes you’ve made and see if it is able to fix the problem with the NVIDIA Control Panel.

Option 2 – Try changing the Power Management and Vertical Sync settings

The next thing you can do to fix the problem is to change the Power Management, as well as the Vertical Sync settings.

• Open the NVIDIA Control Panel and go to this path: 3D Settings > Manage 3D Settings.
• Next, set the Power Management to be “Prefer Maximum Performance” for your processor located on the right-side panel.
• After that, set the Vertical sync setting off and then click on the Apply button located at the bottom-right portion of the window and check if it is able to fix the problem or not.

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.

Option 4 – Try to roll back the driver to the previous version

If updating the NVIDIA display drivers didn’t work for you, then it’s time to roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh.

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the NVIDIA Drivers and expand it.
• Next, select the driver entries that are labeled appropriately.
• Then select each one of them and double click to open a new mini window.
• After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of the NVIDIA Drivers.
• Now restart your computer to successfully apply the changes made.

When you are copying some files from your computer to your hard disk and vice versa or when you have several disks connected to your Windows 10 computer and you suddenly receive an error message saying, “The request failed due to fatal device hardware error”, then this means that there is some issue with the hardware of your computer. This issue might be caused by various reasons but whatever they may be, this post will guide you on how you can fix the “The request failed due to fatal device hardware error”. To fix the error, here are some suggestions that could help.

Option 1 – Check for any hard disk errors

• On your desktop, right-click on the “This PC” or computer icon and then select Manage to open the Disk Management. Here you get to check your drive’s health.
• Next, click on Disk Management on the left side panel.
• From there, check the state of your drives. If it shows that all your partitions are healthy then it means all is good and that the problem may have something to do with some physical issues with your hard drive.

Option 2 – Run the CHKDSK utility

When it comes to some issues concerning the hard drive or removable devices, there is a utility in Windows that might help which is called “chkdsk”. This error check utility can help with several issues in the system including “The request failed due to fatal device hardware error”.

• Tap the Win + S keys to open the Search box.
• Then type “command prompt” in the field and from the search results that appear, right-click on Command Prompt and select “Run as administrator”.
• After opening an elevated command prompt, copy and paste the following command and hit Enter:

CHKDSK [volume [[path] filename]] [/F] [/V] [/R] [/X] [/C] [: size]]

Note: In the command given above, “[/F]” will try to fix the system errors while “[/R]” will be the one to fix the bad sectors.

• Now if you are prompted to run CHKDSK after your reboot your PC, just tap Y and reboot your PC.
• If CHKDSK is not able to find any errors, tap the Win + E keys and navigate the access window. From there, right-click on the concerned drive and click on Properties.
• After opening Properties, click on the tab Tools and then click on the “Check” button under the Error-checking section.
• Wait until the process is completed and then restart your computer

Option 3 – Verify the hard drive using SMART attributes

In case you don’t know, Windows has a built-in feature of SMART analysis which analyzes the hard drive/SSD and checks all the parameters by performing some minor operations. To use it, follow these steps:

• Tap the Win + S keys and type “command prompt” in the field then right-click on the related search result and select the “Run as administrator” option.
• After opening Command Prompt as admin, type the “wmic disk drive get status” command and hit Enter.
• You should get a result after that, and if you see that it’s “normal”, proceed to the next option below.

Option 4 – Format your hard disk

You can try formatting your drive since this problem also occurs on removable hard drives. In addition, if your drive is not properly initialized, this error will really pop up. Thus, you need to make sure that the hard drive is initialized and that the correct partition style is selected.

• To get started formatting your drive, tap the Win + E keys and then go to the access page of the drive.
• Next, right-click on the drive and select Format.
• After that, uncheck the “Quick Format” option and then format your drive properly.
• Now once the formatting process is finished, unplug the drive and plug it back in afterward.
• Check if the error is already fixed. If the drive is not initialized, tap the Win + R keys and hit Enter.
• After opening the Run dialog box, type “diskmgmt.msc” and hit Enter to open Disk Management.
• From there, right-click on the drive volume and select Initialize Disk.
• Next, select the correct partition type and proceed.

Hello and welcome everyone, today we will be talking about dreaded keyloggers, why they are dangerous, and how to know if you might have one in your system. Keylogger is a malicious application placed in your system and hidden with only one goal in mind, to get information about what are you typing and by that means for a person who infected you to get information about your credit card information or other sensitive data. They can be introduced into your systems in various ways and often can not be detected easily. Modern antivirus applications have ways of detecting them and removing but this tutorial aims to teach you how to spot them all by yourself since new keyloggers are produced daily and sometimes relying on antivirus alone is not enough. Unlike viruses and trojans, keyloggers are not heavy on system resources and you will not feel slow down on your computer if you have one which makes them harder to sport with regular work. Some of them can be even tracking you on the website and not even be physically present on your computer. Generally, we could categorize keylogger into 4 categories:

1. Web browser-based keylogger. Some websites would have CSS scripts, input web forms, or so-called man in the middle keylogger. Lucky for us even Windows defenders with the latest update can detect this type of keylogger and successfully deal with it and how keylogger itself is not present on our system we are safe.
2. General spyware keylogger. This keylogger is present in your system, usually, it infected it via email attachment, social media download, torrent download, some malicious so-called fixer application, etc. Most antivirus applications and windows defenders can detect these types as well and remove them successfully.
3. Kernel-level keylogger. This keylogger is a more dangerous type they tend to operate underneath Windows as a rootkit and can go undetected by antivirus and windows defenders.
4. Hypervisor-based keylogger. This is the most dangerous keylogger, they use virtualization techniques to hide and mask themselves as a replica of the operating system and they scan all keystrokes by the user. These are very rare keyloggers but they do exist.

If you suspect that you have a keylogger or just want to check your system for precaution reasons follow these tips and guides and luckily you will solve your issue in no time and your data will be safe.

1. Use Task Manager to find suspicious entries.

   Task manager is a great application implemented in Windows that is constantly monitoring and showing all services, applications, and processes currently running on your system and thus a great tool to monitor your system if you know how to use it. First, open task manager by pressing CTRL + SHIFT + ESC Then take a good look into it, try to find suspicious names, probably duplicate of running application, something like Windows logon application, or keylog or anything similar which seems out of ordinary. If you manage to find a suspicious running application right-click on it and close it. Also while you are in task manager jump into the startup tab and check to see are there some unusual applications starting with your Windows, if you find anything, disable it right away. This is the most simple and quickest way to get some information right away if you suspect to have some simpler keylogger in your system.

2. Use the command prompt to monitor your network.

   In order to check connections to your computer and find potential suspicious ones start the command prompt in administrator mode, press ⊞ Win + X, and choose command prompt (administrator). type in netstat -b and press ENTER. All website and application connections to your computer are now visible. ignore svchost, edge browser, windows store, etc ad check the IP of the remaining ones using the internet.

3. Use keystroke encryption.

   Install encrypting software and even if you have a keylogger, the application will encrypt each stroke and all that attacker will get is gibberish

Please remember to always download files from trusted sources, do not open unknown emails, and do not share your information publicly. Take common protection steps in order to protect yourself in the digital world.