Videos folder missing from File Explorer

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

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• There are corrupted, outdated, or incorrectly configured device drivers.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

Windows 11 provides several different ways to make your cursor stand out and be easier to spot inside it. You can make the mouse pointer larger, invert it, or change its color.

1. Press ⊞ WINDOWS + I to open settings
2. Click on Accessibility in the sidebar
3. Select Mouse Pointer and Touch
4. Adjust mouse cursor size with size slider by clicking on circle and dragging it left or right
5. Under Mouse Pointer Style pick desired style from White, Black, Inverted, and Custom
   1. White: The cursor is white with a black outline (standard setting)
   2. Black: Cursor is black with a white outline
   3. Inverted: Cursor automatically changes color to an inverted version of the color it is currently hovering over
   4. Custom: You can pick the color for the cursor that you want.

And that is all about it, once you are done with pointer customization just close settings, all changes are saved automatically.

If you encounter the BAD_SYSTEM_CONFIG_INFO Blue Screen error in your Windows 10 PC, then read on as this post will guide you in fixing this issue. Usually, this kind of Blue Screen error is caused by some issues with the Boot Configuration Data file. The main issue inside of the Boot Configuration Data file is that either some boot order files or older files might be in conflict with the newer ones or the stable ones and thus triggering the BAD SYSTEM CONFIG INFO Blue Screen error. This kind of Stop error also indicates that there is an error in the Windows Registry which is why you need to update potential culprit drivers as well as edit some entries in the Registry if need be. But before you get started, make sure that you create a System Restore Point first. After creating a System Restore Point, try to boot your computer into Safe Mode and then restart your computer normally. However, if it doesn’t work, proceed to the given options below.

Option 1 – Run System Restore

Performing System Restore might help you in fixing the BAD SYSTEM CONFIG INFO Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• 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.

Option 2 – Update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer.

Option 3 – Try fixing the Windows Registry files

In order to fix the Windows Registry files, you need to make a bootable Windows 10 USB drive and then boot your PC using it. To do so, refer to the steps below.

• Once you see the Welcome Screen, click on Next.
• Then click on the “Repair your computer” option located on the bottom-left section of the window.
• Next, click on Troubleshoot > Advanced Options > Command Prompt.
• After opening Command Prompt, execute each one of the commands listed below in the sequence that they are given:
  • CD C:WindowsSystem32config
  • ren C:WindowsSystem32configDEFAULT DEFAULT.old
  • ren C:WindowsSystem32configSAM SAM.old
  • ren C:WindowsSystem32configSECURITY SECURITY.old
  • ren C:WindowsSystem32configSOFTWARE SOFTWARE.old
  • ren C:WindowsSystem32configSYSTEM SYSTEM.old
• After executing the commands given above, type in the next ones below and make sure to execute them in the given sequence below.
  • copy C:WindowsSystem32configRegBackDEFAULT C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSAM C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSECURITY C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSYSTEM C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSOFTWARE C:WindowsSystem32config
• Now type “exit” to close Command Prompt.
• Restart your PC for the changes to take effect.

Option 4 – Run a Memory Check to test RAM

On the other hand, you can also fix the BAD SYSTEM CONFIG INFO Blue Screen error by running a Memory Check using the Windows Memory Diagnostic. 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 5 – Rebuild BCD files and repair MBR files

Like what you did on the third option above, you also have to make a bootable Windows 10 USB drive for this option and then boot your Windows 10 PC using it.

• Once you get to the Welcome Screen part, click on Next.
• Afterward, click on the Repair your computer option located on the bottom-left part of the window.
• Then click on Troubleshoot.
• Next, select the Advanced Options and then Command Prompt.
• Once Command Prompt has been pulled up, enter each one of the following commands and in the sequence that they are given to rebuild BCD files and repair MBR files:
  • bootrec /repairbcd
  • bootrec /osscan
  • bootrec /repairmbr

• Now type “exit” to close Command Prompt and then restart your computer to successfully apply the changes made.

Today most people have Facebook accounts where they keep in touch with friends and family. But large Facebook network of users is also very interesting to another party as well, hackers. There are many ways hackers can steal your data via direct hacks, trickery, and social engineering in order to get your credentials, emails, and many other things using them to wreak further havoc. Once a hacker has needed information it is very difficult to minimize impact and all of your information could be compromised from a list of friends to credit card numbers. Keep on reading to learn how can you protect yourself against these attacks and learn about common practices that hackers use in order to steal your data.

Stealing Facebook data via email

A couple of years ago there was a lot of talk about not opening suspicious emails. Well, it still holds today. The difference is that today’s fake emails have become very difficult to differentiate from official ones since hackers put the effort into creating them copying fonts and layout, making them identical to original ones. So if emails look and feel like original ones how do you know if it is fake? Very simple, you do not click anything in it. If Facebook or for that matter any company wants to contact you they will do via their platform. Clicking inside a hacker's email will lead you probably to a fake Facebook website replica where you will have to type in your username and password providing an attacker with your login credentials, etc. If you receive this kind of mail where there are threats about terminating an account, missing payments, etc. it is always the best thing to go directly to Facebook and see if you have any kind of notifications there. Do not trust any emails that ask for account information, request money, or threaten to suspend your account.

Phishing attacks

As stated previously if you click on the link inside fake mail it will probably lead you to a website replica of the original. Although hackers can pretty much copy all things from an original website like layout, fonts, colors, etc. There is one thing that he cannot, web address. Take a good look into your browser address bar to see if there is a typo or anything strange in the address of a website. Also, make sure to check for the secure icon in the web address before signing in.

Fake Facebook buttons

If by any chance and for whatever reason, you end up on a fake Facebook site be vary careful about like and other buttons since buttons themselves behave and act like links inside your browser. IF when you click on like you get a prompt to sign in, it is almost 100% that you ended up on a phishing fake website.

Password brute force attack

Having complex and long passwords is a must. If your Facebook password is 12345 there is a very high chance that if a hacker wants he can easily guess it via trying out the most used and simple passwords via simple guessing. To avoid being hacked just for having poor passwords try to think of something longer, combine letters and numerical characters, place special characters inside it or just simply as the best solution use a password manager and create passwords with it.

Password grab outside Facebook

If you use the same password for multiple accounts which is a big no-no and you should not do it then hackers can use passwords from other services and login into your Facebook in order to steal data. Avoid these situations by having different passwords for different accounts or use a password manager to keep everything in order.

Hacking via key logger

Some time ago we have made an article which explained in detail everything you need to know about key loggers here: https://errortools.com/windows/how-to-know-if-you-have-keylogger-in-windows/ Anyway, this is a more advanced hacking technique in order for hackers to steal your data and it includes placing malicious applications into your system that records your keystrokes and sends them directly to hackers. Since this is an application best protection against this type of attack is to have a security suite installed and active on your PC or device you use to go to Facebook.

Connecting and surfing on an unsecured network

Using no password and unsecured WI FI or any other type of network is risky at least. You can have all protection installed on your device and have a strong password but hackers also logged in to the same network can track all outgoing stuff going through mentioned network leaving you again exposed to attacks. It is better to connect to your mobile operator network than on free WI FI, at least there is some level of security in your operator network while free WI FI is completely unsecured. Getting a virtual private network or VPN is also one thing you could think about for protection since almost all VPN services will encrypt your data thus providing you with a security layer even on unsecured Wi-FI.

Conclusion

Hacking and stealing have come a long way from their infant stages and in today’s world when we use a lot of gadgets and have plenty of online presence taking some steps for security is a must. I hope that you have found anything here informational and helpful so you can avoid getting your data compromised.

It is officially confirmed, Windows 11 release date is October 5^th. Windows 11 will be released as a free upgrade to all registered Windows 10 users that have supported hardware for it. The rest of the users will be able to install it via ISO file as a clean installation if their computer supports Windows 10 hardware requirements. The official price for the license for Windows 11 has not yet been set but I assume after release it will be set. Priority for W11 will have users who are upgrading from W10 as stated by Microsoft. Also, it was officially confirmed that Android apps will not be running natively in this first release of Windows 11, that feature will come in a future update, official statement below:

"We look forward to continuing our journey to bring Android apps to Windows 11 and the Microsoft Store through our collaboration with Amazon and Intel; this will start with a preview for Windows Insiders over the coming months,"

The rest of the features will be all included inside Windows 11 on launch.

As previously announced by Google feature to quickly delete the last 15min of browsing history via one button is rolling out now. For now, only Apple users will be available to use this feature but the Android update is scheduled for later this year, a strange move by Google but it is what it is. For anyone who is unfamiliar with this feature, basically, Google wants a quick way to remove the last 15min of browsing history as a supposedly stated request to make deleting browsing history much easier. Google came up with this idea so you can keep the previous history intact but remove just 15min time frame, no additional explanation was given on why 15 but I presume it is some round number that came up as the middle one with research, read telemetry info. Using quick delete requires being signed into Search with a Google account. Users can access the option by simply tapping on the avatar icon to access the settings then choosing "Delete last 15 minutes."

High Efficiency Image File Format (HEIF) is a container format for individual images and image sequences. The standard covers multimedia files that can also include other media streams, such as timed text, audio, and video. A HEIF image using High-Efficiency Video Coding, HEVC, requires only about half the storage space as the equivalent quality JPEG. HEIF also supports animation and is capable of storing more information than an animated GIF or APNG at a small fraction of the size. HEIF files are a special case of the ISO Base Media File Format (ISOBMFF, ISO/IEC 14496-12), first defined in 2001 as a shared part of MP4 and JPEG 2000. Introduced in 2015, it was developed by the Moving Picture Experts Group (MPEG) and is defined as Part 12 within the MPEG-H media suite (ISO/IEC 23008-12). HEIF was adopted by Apple in 2017 with the introduction of iOS 11, and support on other platforms is growing.

HEIF files can store the following types of data:

Image items

Storage of individual images, image properties, and thumbnails.

Image derivations

Derived images enable non-destructive image editing and are created on the fly by the rendering software using editing instructions stored separately in the HEIF file. These instructions (rectangular cropping, rotation by one, two or three quarter-turns, timed graphic overlays, etc.) and images are stored separately in the HEIF file, and describe specific transformations to be applied to the input images. The storage overhead of derived images is small.

Image sequences

Storage of multiple time-related and/or temporally predicted images (like a burst-photo shot or cinemagraph animation), their properties, and thumbnails. Different prediction options can be used in order to exploit the temporal and spatial similarities between the images. Hence, file sizes can be drastically reduced when many images are stored in the same HEIF file.

Auxiliary image items

Storage of image data, such as an alpha plane or a depth map, which complements another image item. These data are not displayed as such but used in various forms to complement another image item.

Image metadata

Storage of EXIF, XMP and similar metadata which accompany the images stored in the HEIF file.

In case you don’t know, the Windows Registry contains a System Hive which is a core part of Windows. The Windows operating system store various settings, options, and configurations. And if you encounter a Device Manager Error 49 for a device then it means that the system hive has exceeded its size limit. Worry not for this post will provide you with possible solutions that can help you in fixing error code 49. You will see the following error message when you encounter error code 49:

“Windows cannot start new hardware devices because the system hive is too large (exceeds the Registry Size Limit), (Code 49)”

There are instances when it may so happen that the device or devices are no longer attached to the computer but they are still listed in the system hive of the registry. For instance, if you were removing hardware and application for years but they weren’t removed from the registry then the size of the system hive keeps on growing until it hits the maximum limit. As you know, making changes in the registry manually, no matter how knowledgeable you are on such things is not sage since the registry is not only important but also complex. In addition, the System Hive is also a permanent part of the Registry associated with a set of files that contain information related to the configuration of the computer on which the OS is installed. To resolve this error, you must remove or uninstall any hardware devices that are no longer in the system. In fact, the Device Manager hides them by default so you need to enable hidden or non-present devices. Follow the instructions given below to set the Devices Manager to display devices that are no longer connected to the computer. Step 1: Tap the Win + R keys to open the Run dialog box. Step 2: After that type in “cmd” and hit Enter to open the Command Prompt. Step 3: Type “set devmgr_show_nonpresent_devices=1” in the Command Prompt and hit Enter to enable the hidden devices option. Step 4: After that, exit Command Prompt and tap Win + X + M to open the Devices Manager. Step 5: After opening the Devices Manager, click on View and then select the “Show hidden devices” option. This will show you all the devices that are not connected to the computer but are still mentioned. Step 6: Next, select a non-present device and click Uninstall from the Driver tab. Step 7: After that, repeat what you’ve done on step 5 for any other device that you no longer use. Step 8: Restart your computer. You can check the device Properties dialog box in the Device Manager after you’re done removing all the useless devices, to check if the error is now fixed or not. Moreover, you can also try running the Hardware and Devices Troubleshooter as it can also help resolve hardware-related problems. To use it, refer to the steps below.

• 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.

Error 0x8004210A - What is it?

0x8004210A is a typical POP3 email error message. This error may sometimes occur when you try to check your Post Office Protocol 3 (POP3) email account. 0x8004210A error code hampers your ability to both send and receive e-mails on your Outlook account. Error 0x8004210A is displayed in any one of the following formats on your PC:

The operation timed out waiting for a response from the receiving (POP) server 0x8004210a Task 'SMTP server name - Sending and Receiving reported error' (0x8004210A): 'The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'

Error Causes

Error 0x8004210A occurs due to several reasons. However, some of the most common reasons include:

• Wrong port number for the POP incoming server
• Your connection to the mail server is too slow
• Incoming and outgoing emails are being scanned and stopped by an antivirus installed on your system
• The Outlook send and receive job is being blocked by Firewall
• You are sending and receiving large series of emails or large email attachments
• Registry issues

No matter what the cause of this error is, to resume email communication via Outlook and to ensure your work productivity is not affected, it is recommended that you resolve this 0x8004210A error code on your PC immediately.

Further Information and Manual Repair

To fix error 0x8004210A, here are some of the most efficient and easy manual methods that you can try:

Method 1

If the cause of the error is related to the internet connection then here’s what you need to do. Try freeing up your internet connection by closing any other online activities in progress or downloads being carried on your system.

Method 2

Try to increase your server time-out periods. To do this, go to the Outlook File menu and choose account settings. Now double click on your email account and more settings. Now click advanced and increase your server timeout period to resolve.

Method 3

If you are trying to send or receive large and heavy emails on your Outlook account, the error 0x8004210A may pop up. This happens because when transferring heavy files the email account automatically locks until the task is complete, however, if it takes more time the next Send and Receive job starts while the first one is still not complete. In such an event, the email server then times out and shows you the error. Therefore to resolve, you will have to show patience. Simply wait for the large email to be sent or received before you start sending another email.

Method 4

If the antivirus installed on your system is the reason for the error pop up, then disable it for a while until the operation is complete. Then enable it once the task is performed successfully.

Method 5

Similarly, if the Firewall installed on your system is preventing Outlook from reaching your mail server, then simply disable the Firewall to resolve.

Encountering errors is never a pleasant experience and fixing errors can sometimes take a large amount of time. Also depending on your expertise and knowledge about computers and the operating systems themselves could be determining factor would you try to wrestle with error.

We will explore and analyze the advantages of both methods so you can choose and know when to apply one and when to reach for the other.

Advantages of manual method

Full control is the main advantage of manually solving errors, when you go deep dive into manually fixing problematic issues you are one that has control. Complete freedom is also another, sometimes fixing things can be done in several different ways and when you are the man behind the wheel, you are the one that can choose how to approach and what solution to apply in order to solve the issue.

Disadvantages of using manual method

The main disadvantage that some users might encounter is that they will need to know ins and outs of computer and operating systems' workings. Of course, the more complicated errors, the more knowledge it will require in order to apply the proper fix. There is also a risk to break something else if the person that is doing the fixing is not fully competent so this is also something to think about.

Another thing that goes against manual fixing is the time it will require in order to actually fix it, some more complex stuff will probably depend on searching for some external resources like searching for compatible drivers for example, or navigating complex registry keys inside Windows.

Advantages of automatic solutions

If you are a user that has no knowledge about how the operating system works, if you do not know what is a registry or how to properly navigate through the Windows folder then the automated solution is for you. The main advantage of automated systems is that you can easily fix errors without any kind of technical knowledge and usually with just one click of a button.

Saving time is also one of the advantages of fully automated solutions because they will work much faster than manually locating the problem and then fixing it. Also, most of these systems will have in place active monitoring that will check always if your system is in top form and alert you when something is not right.

Disadvantages of one-click solutions

Automated solutions are great, they can solve various issues and errors without any knowledge from the user, but they are not perfect. Like security suites sometimes an automated system can misinterpret something as an error when in fact it is not and fixing it could mean some apps not working anymore, luckily you can choose would you like to apply the suggested solution. So if you are using one do not just click fix without looking at what it is trying to fix and maintain.

Another problem with this is the price it is carrying, manually solving your computer error will cost you your time and knowledge but good automated software will come with a price tag. Some people might not be too happy to pay for this kind of application but at the end of the day, it will still be cheaper than a professional technician. The last thing that you should be aware of is that in order for the app to do its work properly it will need to be active all the time, now for modern computers, this is not the issue but for some older ones with a small amount of memory might lead to some slowing them down. This is a price to be paid in order to have your system always errors free.

Should you use an automated solution at all?

This depends on your knowledge and time available, professional IT technicians will not need this type of solution nor will power users but for most common people this will offer computers free of errors for an affordable price.