How to Quickly Fix MSI.chm Error

Error Code 0xC1900101, 0x4000D - What Is It?

Error Code 0xC1900101, 0x4000D is not very common among the many error codes emerging when updating to Windows 10. It is specific to Windows 7 users who try to upgrade to Windows 10 system.

This error hinders Windows 7 users to install the Windows 10 update. Once the update is launched, the process will go smoothly until a certain percentage (normally upon hitting 70% or more) and then it gets stuck. The user will then see a notification stating: “The installation failed in the SECOND_BOOT phase with an error during MIGRATE_DATA operation.”

You’ll be able to get past the error after a while. The error message will disappear and continue with the configuration process. But, not for long as it will reoccur at around 90% of installation with another error message saying: “The installation failed in the SECOND_BOOT phase with an error during PRE_OOBE operation.”

Solution

Error Causes

You’re most likely to encounter Error Code 0xC1900101 – 0x4000D when you upgrade to Windows 10 using a USB drive. There are several reasons why this update-related error happens such as wrong update, incompatibility with an antivirus program, or incompatibilities with some software.

Further Information and Manual Repair

In attempting to fix error code-related problems, it is best to do manual repair methods. Employing repair methods manually can help users pinpoint the root causes of the issues they are encountering and apply permanent solutions to fix the problem.

While every Windows user can do most manual repair methods, there are certain cases where help from a Windows expert is needed. If you’re not confident in employing the manual repair methods yourself, you can always consider seeking help from a professional Windows technician who is equipped with enough knowledge to address any issues you are facing or you can just simply use a powerful automated tool.

In fixing Error Code 0xC1900101 – 0x4000D, you can try doing any of the following manual repair methods:

Method One: Disable Background Applications

Error Code 0xC1900101-0x4000D probably occurs when there are programs running in the background of the system as you are in the process of updating. On that note, you must ensure that any programs running in the background must be disabled through Task Manager.

1. Press Ctrl+Alt+Del then choose Task Manager.
2. Right-click on all background applications then chooses End Task to close the apps.

NOTE: If there are any processes you are unfamiliar with, you can always right-click that process then “search online.” Be careful not to end “Windows process” tasks under the “Type” column as it might cause further problems.

3. Restart your device then proceed to Windows 10 system upgrading.

Method Two: Uninstall Anti-Malware Tools

Anti-malware tools normally trigger problems since they consist of files that are possibly incompatible with some software. If Error Code 0xc1900101-0x4000d is caused by incompatibility with an antivirus program, follow the following steps:

1. Open the Control Panel then choose System and Security.
2. Select Windows Solution Center.
3. Click Security to locate your antivirus.
4. Once you’ve located your antivirus, click on it then choose
5. Restart your device then check if it eliminates the problem.

Method Three: Install System Updates

1. Click on the Start menu then select System and Security – Windows Updates.
2. Choose Check for updates.
3. If there are any required updates detected by the system, select them all then choose Install Updates.
4. Restart your device.

Method Four: Check System For Any Incompatibilities

In doing this method, you need to use the System Readiness tool.

1. Download System Update Readiness Tool for Windows 7 for x64-based Systems (KB947821).
2. Once the download is finished, open Windows 6.1-KB947821-v34-x64.msu
3. Run the program to check for any incompatibilities in your system.

NOTE: The process might take a while depending on the speed of your device.

4. If there are no results found, you can now try updating again to Windows 10. However, if there are any issues found, you need to have them fixed first.

Method Five: Download A Powerful 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!

Error Code 80004002 - What is it?

Error code 80004002 will be encountered when there are absent registry keys. These missing registry keys will hinder an update process when initiated. However, this error code can be averted once the user makes a reinstall of the Windows Update Client. The steps will be highlighted throughout the article.

Solution

Error Causes

Error code 80004002 might occur for various valid reasons. In cases of installing programs, a user might mistakenly install a new program over another, that was not properly (completely) uninstalled. This could cause a stack-up of registry keys and error messages. Additionally, error code 80004002 might be a consequence of malware, viruses, and adware.

Further Information and Manual Repair

If left unchecked, error code 80004002 could amount to system freezes and crashes, slow computer performance, error codes upon installation, and even blue screen errors. To fix this error code, you might want to attempt one or all the methods below. This is due to the fact that the problem might stem from various reasons.

Method 1: Safe Mode

Ensure to boot your computer in safe mode. This is to ensure that you are properly able to troubleshoot Windows update error code 80004002. To load your computer in safe mode, turn on the computer, press F8 before it fully loads to the ‘sign in’ screen.

Method 2: Update Outdated Drivers

One of the many reasons why you’ll encounter error code 80004002 is in light of the fact that your drivers might have been outdated. To check if your driver is outdated, Right click on the Start menu, select the Device Manager option. From there, you’ll be able to tell which device(s) is corrupted and needs updating.

Method 3: Reinstall Windows Update Client

To perform this process, follow the steps below:

1. Locate “My Computer” or “This PC” on your device.
2. Select the “Properties” option.
3. Under the System option, determine whether your System type is 64-bit or 32-bit version of Windows.
4. Use the links below to install the Windows Update client:

Click for 32-bit Operating System

Click for 64-bit Operating System

5. After installation, search for Windows Update from the Search option.
6. Select the Check for Updates option.
7. Once any updates are found, hit Install Updates.

Method 4: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

PC Optimizer Pro is a PC optimizer utility developed by Xportsoft Technologies. It is classified as a potentially unwanted program, due to its aggressive scan and registration reminders, and that it is often distributed bundled with other programs in a manner that leads many users to not know how it got on their computer. While not inherently malicious, PC Optimizer Pro adds numerous registry keys, startup entries and while running consumes a relatively high amount of system resources, especially during its scans. The software installs from a .exe file that is around 5.20 MB or 5.453.240 Bytes (depending on the version). As of the publication of these videos, the current version of PC Optimizer Pro was detected as malicious or potentially unwanted by at least 21 AntiViruses.

About Potentially Unwanted Applications

If you have ever installed freeware or shareware, chances are high that your computer can get installed with a bunch of unwanted applications. A Potentially Unwanted Program, also called PUP, in short, is actually software that contains adware, installs toolbars, or has other hidden goals. These kinds of programs are almost always bundled up with free software which you download from the net or are also bundled within the custom installers on many download sites. PUPs did not really constitute pure “malware” in the strict sense of the term. Just like malicious software, PUPs cause problems when downloaded and installed on your PC, but what makes a PUP different is that you give consent to download it – although the truth is vastly different – the software installation package actually tricks you into accepting the installation. Irrespective of whether it is regarded as malware or not, PUPs are nearly always harmful to the user as they might bring on adware, spyware, keystroke logging, and also other bad crapware features on your computer.

What do PUPs do on your computer, exactly?

Potentially Unwanted Programs come in many forms and varieties, but in most instances, these are adware programs that show annoying pop-up adverts and advertisements on websites you check out. The PUPs also get installed into your computer in the form of web browser add-ons and toolbars. Not only they needlessly take up space on your computer screen, but toolbars may also manipulate search engine results, watch your web browsing activities, decrease your web browser’s efficiency, and decelerate your internet connection to a crawl. Potentially Unwanted Programs at times act quite similarly to viruses or spyware. Some PUPs include keyloggers, dialers, along with other software to gather your private details that may result in identity theft. These are programs that don’t do anything good for you; in addition to taking over space on your hard drive, they also slow down your computer, often modify settings without your approval, the list of bothersome features goes on.

Ways to avoid PUPs

• Always study the EULA and privacy statement. Don’t agree until you know precisely what you are acknowledging. • Choose the “custom” install whenever installing a software program. In particular, look closely at those small boxes that have been checked as default, where you may ‘agree’ to receive promotions or install software bundlers. • Use good antivirus software, like Safebytes Anti-Malware that offers real-time protection against PUPs. • Avoid adding a freeware program you do not use. Turn off or remove toolbars and web browser extensions you don’t really need. • Always download software from reliable sources like official sites as opposed to untrustworthy sharing space. Avoid file-hosting sites where/when possible.

What you can do if Malware Prevents You From Downloading Or Installing Antivirus?

Practically all malware is bad, but certain types of malware do much more damage to your computer than others. Certain malware goes to great lengths to stop you from downloading or installing anything on your personal computer, particularly antivirus applications. If you are reading this right now, you have probably recognized that a malware infection is the real cause of your blocked web connectivity. So what to do if you need to install an antivirus program like Safebytes? There are a few steps you can take to circumvent this problem.

Install in Safe Mode

The Windows OS has a special mode known as “Safe Mode” in which just the bare minimum required programs and services are loaded. In the event the malware is blocking the internet connection and affecting the computer, running it in Safe Mode will let you download antivirus and run a diagnostic scan while limiting possible damage. To start the computer into Safe Mode, press the “F8” key on your keyboard right before the Windows boot screen comes up; Or right after normal Windows boot up, run MSConfig, look over “Safe Boot” under Boot tab, and click Apply. After you reboot into Safe Mode with Networking, you can download, install, and update anti-malware software from there. Right after installation, run the malware scanner to remove standard infections.

Switch to an alternate browser

Some malware may target vulnerabilities of a specific browser that block the downloading process. If you seem to have malware attached to Internet Explorer, then switch over to an alternate web browser with built-in safety features, such as Firefox or Chrome, to download your favorite antivirus program – Safebytes.

Install and run anti-virus from the USB drive

Another solution is to create a portable anti-malware program on your USB stick. Adopt these measures to employ a thumb drive to clean your infected computer system. 1) Download Safebytes Anti-Malware or MS Windows Defender Offline onto a clean PC. 2) Plug the Thumb drive into the clean computer. 3) Run the setup program by double-clicking the executable file of the downloaded software, with a .exe file format. 4) Choose the flash drive as the location for saving the file. Do as instructed on the screen to complete the installation process. 5) Now, plug the pen drive into the corrupted computer. 6) Double-click the anti-malware software EXE file on the USB flash drive. 7) Press the “Scan” button to run a full system scan and remove viruses automatically.

SafeBytes Anti-Malware: Lightweight Malware Protection for Windows PC

These days, an anti-malware tool can protect your computer from different types of online threats. But how to choose the best one amongst numerous malware protection application that’s available out there? You may be aware, there are numerous anti-malware companies and tools for you to consider. A few are well worth your money, but many aren’t. You have to be very careful not to choose the wrong application, especially if you buy a paid application. In terms of commercial anti-malware application options, many people select well-known brands, such as SafeBytes, and are quite happy with it. SafeBytes anti-malware is a powerful, highly effective protection tool created to help end-users of all levels of IT literacy in detecting and eliminating malicious threats from their computer. Using its cutting-edge technology, this software can assist you to eliminate several types of malware such as computer viruses, trojans, PUPs, worms, ransomware, adware, and browser hijackers. SafeBytes has excellent features when compared to other anti-malware programs. Let’s have a look at a few of them below: Robust, Anti-malware Protection: Safebytes is made on the best virus engine within the industry. These engines will find and get rid of threats even during the initial phases of a malware outbreak. Active Protection: Malware programs aiming to enter the system are discovered and stopped as and when detected by the SafeBytes active protection shields. It’ll check your PC for suspicious activity at all times and safeguards your personal computer from unauthorized access. High-Speed Malware Scanning Engine: SafeBytes’s high-speed malware scanning engine minimizes scan times and extends the life of the battery. Simultaneously, it will effectively detect and eliminate infected computer files or any online threat. Website Filtering: SafeBytes checks the hyperlinks present on a webpage for possible threats and informs you whether the site is safe to explore or not, through its unique safety rating system. Lowest CPU/Memory Usage: SafeBytes is a lightweight and user-friendly antivirus and antimalware solution. Since it utilizes negligible computer resources, this tool leaves the computer’s power exactly where it belongs to: with you. Premium Support: You may get high levels of support round the clock if you’re using their paid software.

Technical Details and Manual Removal (Advanced Users)

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

The following files, folders, and registry entries are created or modified by PCOptimizerPro

0x0000007c error inside Windows 11 is a printer error that is manifested when Windows users are trying to connect to a shared network remote printer. Error is displayed by the message:

Windows cannot connect to the printer. Operation failed with error 0x0000007c.

If you are experiencing this type of annoyance, fear now we are providing you with several solutions to this problem.

Update Windows 11

1. Open the Start menu, click on the settings app
2. Select Windows update tab
3. Click on Check for updates
4. Click on Advanced options
5. Inside select Optional updates
6. If there are optional updates click on Download & Install

Run the printer troubleshooter

1. Press ⊞ WINDOWS + I to open settings
2. Click on Troubleshoot navigation on the system tab
3. Select Other trouble-shooters
4. Click on the Run for printer troubleshooter
5. If the error is found click on Apply this fix

Restart the Print Spooler Service

1. Right-click on the Start button
2. Click on RUN
3. Type in services.msc and press OK
4. Right-click on Printer Spooler service and select Restart

Clear the Print Spooler

1. Open services like in the previous step
2. Right-click Print Spooler and select STOP
3. Open File explorer
4. Navigate to: C:\Windows\System32\spool\drivers\x64\3 (64-bit Platform) C:\Windows\System32\spool\drivers\W32X86\3 (32-bit Platform)
5. Delete everything inside folders
6. Go back to services, right-click on Print Spooler and select RESTART

Reinstall Driver for printer

1. Right-click on Start and select device manager
2. Double click on the Print queues category
3. Right-click on the printer and select Uninstall device
4. Click on Uninstall on prompt
5. Right-click on the Print queues category and select Scan for hardware Changes

As you know, the Graphics Card in a computer is one of the important components in an operating system as they are responsible for rendering various objects in your computer. However, there are cases when the performance of this rendering can degrade and your computer can trigger a VIDEO_SCHEDULER_INTERNAL_ERROR Blue Screen of Death error instead. The VIDEO_SCHEDULER_INTERNAL_ERROR bug check has a value of 0x00000119 which means that the video scheduler has detected a fatal violation in your computer. Before you troubleshoot the problem, you might want to perform System Restore first as it might help you fix the Stop error. To perform System Restore, refer to these steps:

• First, press 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 Stop error is fixed or not.

If the VIDEO_SCHEDULER_INTERNAL_ERROR BSOD error is still not fixed after System Restore, then follow the given options below to further troubleshoot the problem.

Option 1 – Try to manually check the Graphics Card hardware

You might also want to check the physical status of your Graphics card and you can do this by disconnecting the Graphics card or any other external device connected to your computer. Once you’ve removed the external device, check it for any damages. If there’s none, connect it back to your computer and check if the VIDEO_SCHEDULER_INTERNAL_ERROR Blue Screen error is fixed or not.

Option 2 – Try removing hardware or drivers that you’ve installed recently

If you have recently installed some hardware or drivers, you might want to disable or remove them since external devices are proven to be one of the factors that trigger Blue Screen errors like VIDEO_SCHEDULER_INTERNAL_ERROR. All you have to do is physically disconnect any external devices that are connected to your computer and then check if it fixes the BSOD error or not.

Option 3 – Try to rollback, update, or disable the Graphics card drivers

Since the VIDEO_SCHEDULER_INTERNAL_ERROR Blue Screen error has something to do with Graphics card drivers, you can either roll back, update or disable them depending on your preference in order to resolve the error.

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for the Display Adapters and click on them.
• After that, right-click on each entry under the Display Adapters and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also have the option to go directly to the website of your graphics card manufacturers like NVIDIA, Intel, or AMD and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Option 4 – Uninstall any faulty drivers

You can also uninstall any faulty drivers via Device Manager. How? Refer to these steps:

• Tap the Win + R keys to launch the Run dialog box.
• Then type “devmgmt.msc” in the field and tap Enter to open the Device Manager.
• From there, look for any faulty drivers. You can identify them easily as they will be marked with a yellow exclamation point. And then check which entries would not affect the normal functioning of your PC.
• Now click on the entries of every faulty driver and click on the Uninstall option.
• Once you’ve uninstalled them, restart your computer to allow your computer to reinstall the faulty drivers you’ve just removed.

Option 5 – Run System File Checker at boot time

• 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.
• After opening Command Prompt, type the “sfc /scannow” command and hit Enter to run the System File Checker scan.
• Wait until the process is completed and type “exit” to close Command Prompt and then restart your computer to successfully apply the changes made.

Option 6 – Try to run the Blue Screen Troubleshooter

As you know, the Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like the VIDEO_SCHEDULER_INTERNAL_ERROR error. It can be found in the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Google Docs has cemented itself as a great free alternative to Microsoft Office Word. Most of the time people just share links to google Docs among themselves but sometimes you need to save and download files.

Luckily Google docs let you download easily files in various formats including PDF as well. In this short tutorial we will explain how can you download your Google document as a PDF file.

Saving Google Docs as a PDF

Open the Google document inside the browser and click on the File drop-down menu. In the file drop-down menu go to Download and choose PDF document. Next, choose the location where you would like your file to be saved and click on SAVE.

And that's all that needs to be done. Also, you can edit PDF files as well in google docs if you need to.

If you are starting to get into the “wonderful” world of coding there is a high chance that you have heard of GitHub or Git for short and there is a slight chance that you might be confused about what exactly GitHub is. If this is the case, we are welcoming you to go through our article and find everything about it and why it is so popular and used all around the world.

What exactly is GitHub?

If we want to go all technical and just point the obvious we could say that GitHub is basically a WEB site and cloud service used for storing and managing code in all languages. But to truly understand why you should use GitHub and not Dropbox or any storage service instead you need to understand concepts like Version Control and Git.

Version Control

Version control is meant to help developers to work separately on different parts of codes and update is separately not breaking the original one. Take note that this option is meant when there is a big project and has more than one coder working on it. If you are a solo coder on your personal project this might not be anything groundbreaking for you personally. But let’s now assume that you are part of a team and that your task is to edit only one function of a project and other people working will also have their tasks. With version control, you could take only part of the code and work on it and once you are finished merge it back into the main repository. All changes in the main code are automatically tracked and can be easily reverted back if needed. The good stuff is that rolling back can be used only let’s say on a code you submitted and other changes made to the source can be kept. As you can see this makes a very good and efficient working space and a good coding environment.

Git

Git itself is a specific version control system, an open-source version control system to be more precise created by Linus Torvalds in 2005. It is a distributed version control system, which means that the entire codebase and history is available on every developer’s computer, which allows for easy branching and merging. Currently, over 87% of worldwide developers are using Git on a daily basis.

So GitHub is?

GitHub is a profit company that offers a cloud-based Git repository hosting service, in other words, it automates and makes it easy for everyone to use Git for version control and collaboration. It focuses on user interface and ease of use so even beginner coders can use it right away without any large confusion and using command lines and setting it themselves manually. GitHub also has a free personal plan in which you can host a public code repository completely free. This option placed GitHub very popular with open source projects. If you are a company you can purchase a plan to have a private code repository shared only to members of your team or company.

Conclusion

As stated almost every developer on a planet uses some version of Git, many of them are on GitHub and there is a lot of open source projects on it. Some employers even ask to see your GitHub repository when deciding if they want to employ you, think of it as a portfolio for coders. There is not a single disadvantage and not a single argument against using it, especially it has a personal free option. So if you want to look better and more professional in the coding world go, make an account and place some code on it, share it with the world, and see how it goes. You might even get some help on projects from other coders if you need it.

Hello and welcome everyone. In today's article, you will learn how to lock folder and content in it. Please be aware of few things:

1. The method is shown here works, but you need to be careful and follow step by step or you will damage your files permanently,
2. If you forget your password, you can not access your files anymore
3. Your files altho protected can still show up in recent files of some applications

All of that being said, let us start with locking the local folder on the computer with the password. Go to the folder where you have files that you would like to hide and lock with a password. Enter the folder and create the new text file inside it. Skip the name for now and go inside it. Copy and paste the following code inside the file:

---

cls @ECHO OFF title Folder Locker if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK if NOT EXIST Locker goto MDLOCKER :CONFIRM echo Are you sure u want to Lock the folder(Y/N) set/p "cho=>" if %cho%==Y goto LOCK if %cho%==y goto LOCK if %cho%==n goto END if %cho%==N goto END echo Invalid choice. goto CONFIRM :LOCK ren Locker "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" attrib +h +s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" echo Folder locked goto End :UNLOCK echo Enter password to Unlock folder set/p "pass=>" if NOT %pass%==Your-Password-Here goto FAIL attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Locker echo Folder Unlocked successfully goto End :FAIL echo Invalid password goto end :MDLOCKER md Locker echo Locker created successfully goto End :End

---

Now locate this line of code in the document: if NOT %pass%==Your-Password-Here goto FAIL and replace Your-Password-Here with your password. !!! Write down somewhere your password, if you lose it you will lock the folder even for you !!! Save the file as FolderLocker.bat and double-click on it to execute it. If everything was done correctly, a new folder with the name: Locker Move files that you want to hide and protect inside that folder. Double click again on FolderLocker.bat The command prompt will appear with the question do you want to lock the folder, press Y, and press ENTER. The command prompt will close and the Locker folder will disappear. In order to unhide and access the folder, you will need to double click on FolderLocker.bat again but this time command prompt with ENTER your password will appear. Type in your chosen password and the folder is back. If you wish to hide and lock it again just double click on FolderLocker.bat again, confirm with Y and it is hidden again.

High Dynamic Range or HDR is a technique that’s used to create lifelike videos which have improved and better dynamic range, especially when it comes to details. And as you know, Windows 10 supports the steaming of HDR videos as long as the display supports it and it comes with the option to enable the HDR Playback for Windows 10 Video Streaming apps. However, before you can get the best viewing experience, you need to calibrate the display further for HDR video on your Windows 10 PC. Take note that even when you have the HDR Playback feature enabled on your computer, you still need a display that supports it. To make sure that your display supports this feature, you can use the DirectX Diagnostic Tool to have the display correctly wired and have the latest WDDM 2.4 drivers installed as well as set the other settings properly. Once you’ve made sure that your computer’s display really supports HDR and you’ve already enabled the HDR Playback feature, now it’s time for you to calibrate. Remember that when you calibrate the display, you should make an external monitor your primary display if you are using it for HDR and then adjust the settings to your liking. And if you are calibrating for primary display, you need to disconnect all other displays.

Follow the given steps below to calibrate the display of your PC.

• Step 1: You need to open the Video Playback first. To do so, navigate to Settings > Apps > Video Playback.
• Step 2: Under the Video Playback settings, uncheck the “Don’t increase display brightness when watching HDR video on battery” checkbox or plug in your PC.
• Step 3: Next, click the “Change calibration settings for HDR video on my built-in display” link located on the right side.
• Step 4: After that, click on the Play button located on the left side to play the video. Then move the sliders to the left or right so you can start to calibrate. Once you see that the quality of the image is to your preference, stop.

Note: Just a tip when calibrating – you just have to find the right balance between the details in the darker parts of a scene. For instance, you have Mountains in the background and buildings in the front – you need to drag the slider to the right to add more details to the snow on the mountain or drag the slider to the left to add more details to the buildings. After that, you can pause the video and exit the full-screen mode. Keep in mind that the quality of HDR depends on you as it is a personal choice. Some users might like a brighter shade while other ones want the darker shade so it really depends on your taste. If you are not satisfied with how your HDR turned out, you can just try calibrating the display again. Simply go back to the default HDR video calibration and click or tap the Reset calibration button. Another thing to remember. First, you can only see HDR content on the full screen and if you’re using a laptop, you need to make sure to watch videos when plugged in and check that the battery settings won't’ lower the brightness.

One of the primary packages that install the Windows Media Player is the Media Feature Pack among other related files that are needed by the associated software products. And one of the essential DLL files in that package is the mfplat.dll file which is needed by various games and streaming services. So if this DLL file goes missing, you will most likely encounter any of the following error messages:

• “mfplat.dll missing”
• “The application failed to start because mfplat.dll was not found.”
• “The program can’t start because mfplat.dll is missing from your computer.”

In other circumstances, the Media Feature Package does not come pre-installed with the main Windows package especially for those who use Windows N, thereby causing the error to pop up. The main cause of this problem is that users who use Windows 10 N do not have the Media Feature pack pre-installed with the installation package. Aside from that, the installation package could go missing after a few Windows Updates or if you have uninstalled it by accident. To resolve this problem, you need to check out each one of the given options below.

Option 1 – Try to enable Media Playback via Command Prompt

If you encounter the mfplat.dll missing error when you attempt to run PLEX or other similar streaming service and you’ve already verified that the Media Feature Pack is indeed installed, you might want to try enabling it using an elevated Command Prompt. There are cases when a particular Windows Update ends up disabling the feature and creates the grounds which results in the mfplat.dll missing error. Thus, you can have to enable the feature via Command Prompt.

• Tap the Win + R keys to open the Run dialog box.
• Then type “cmd” in the field and hit Enter to open an elevated Command Prompt.
• Next, click on Yes if a User Account Control prompt pops up.
• After opening Command Prompt, copy and paste the following command and hit Enter to execute it:

dism /online /enable-feature /featurename:MediaPlayback

• Close Command Prompt and then open the app once again to check if the problem is now fixed.

Option 2 – Try installing the Media Feature Pack for Windows 10 N version

As mentioned, the Windows 10 N version does not come with Windows Media Player. Meaning to say, the Media Feature Pack is also not installed by default or won’t be updated by the Windows Update component. So if you are not quite sure what Windows 10 version you currently have installed, refer to these steps:

• Tap the Windows key + S and then type “about” in the search box.
• From the search results, click on the “About your PC” to open the About tab of the Settings app.
• Afterward, scroll down to the Windows specifications and check your Windows version under Edition.

Note: If you have verified that your PC is using the Windows 10 N version, you need to install the appropriate Media Feature Pack for your computer. How? Refer to the steps below:

• Click this link to download and install the Media Feature Pack from Microsoft’s official website.
• Upon installation, select the edition you want to install using the drop-down menu and then click on Confirm. Take note that there are few reasons why you’d want to install the older version since most streaming services like PLEX and most games usually require version 1803.
• After that, wait until the request is validated. The download should begin in a few minutes automatically.
• Once the download is completed, open the installation executable file and follow the next on-screen instructions to install the Media Feature Pack on your computer.
• Restart your computer. After your computer has rebooted, open the application where you’re getting the mfplat.dll missing error and then check if the problem is now fixed.

Option 3 – Try to extract a copy of the mfplat.dll file from the windows.old directory

If you encounter the error shortly after you just upgraded to Windows 10 from an older version, the best thing you can do to resolve the problem is to use windows.old directory to fetch an old copy of the mfplat.dll file. To do so, follow the steps below.

• Go to the Windows drive and then look for the windows.old directory where it preserves a copy of your old operating system as well as associated files in case something goes out of hand during the upgrade process.
• After that, open the windows.old folder and then go to the syswow64 folder.
• Next, from the syswow64 folder, copy the mfplat.dll file and paste it to C:/windows/syswow64.
• Restart your computer and check if the error is now resolved or not.