Fix Mfplat.dll missing on Windows 10

Recently, a number of users reported that they were not able to run PLEX and other similar streaming services ever since a Windows Update was automatically installed in the system. The error in these streaming services has something to do with a missing Mfplat.dll DLL file from the Windows Media Feature Pack. On the other hand, some users also reported that the mfplat.dll error occurred on several games as well which used the Media Feature Pack.

Usually, the mfplat.dll error is caused by the missing Media Feature Pack in Windows 10. Although most of the time the Media Feature Pack is installed by the application that needs it or through Windows Update automatically, there are just certain installers that do not have it. It could be that the Media Playback service was disabled by a particular Windows Update. Aside from that, the error might be because your computer is using Windows 10 N – a Windows 10 version that does not include the Media Feature Pack by default. Whatever the cause may be, you can troubleshoot the problem with the help of the options given below. But before you go on, keep in mind that downloading the missing DLL file and copying it to the folder of the program where you encounter the error won’t really help and will only make things even more complicated.

Option 1 – Install 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’ve determined that your computer 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 2 – 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 3 – Try extracting 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.

Option 1 – Manually clear the recent files

The first thing you can do is to clear the recent files manually. Since the information about the recently opened files is stored in the form of cached data, you can locate this data and delete it manually, from time to time. To do that, follow these steps:

Tap the Win + R keys to open the Run utility and copy this address in the field: %AppData%MicrosoftWindowsRecent
Next, tap the Ctrl + A keys to select all the items and then tap the Shift + Delete keys simultaneously.
After that, a prompt will appear where you have to click on Yes. This will delete all the recently opened files in the File Explorer the next time you open it.

Option 2 – Disable the feature via Control Panel

The next option you can try to disable the feature is via Control Panel. Refer to these steps to do so:

First, click on the Start Menu button and select the Settings icon.
After that, click on Personalization and then on Start located on the left pane.
Next, scroll down until you see the “Show recently opened items” in Jump Lists on the Start or the Taskbar and click on it and then toggle it off.

Option 3 – Disable the feature using the Group Policy Editor

If you are using the Windows 10 Pro version, then you have access to edit the functions in the Group Policy. The Group Policy function has the option that can disable all the default services of Windows 10. Note that in this step, you will permanently disable the “Recently Opened Files” feature. So before you proceed, make sure that you really want to disable this feature permanently and not in the meantime.

Tap the Win + R keys to open the Run dialog box and type “gpedit.msc” in the field and click OK or tap Enter to open the Group Policy Editor.
Next, on the left side pane, click on the “User Configuration” option and then click the “Administrative Templates” option.
After that, select the “Start Menu and Taskbar” option and select the “Don’t keep the history of recently opened documents” option in the right pane.
Now double click on this option and check the “Enabled” option and then click on Apply and OK buttons to save the changes made.

Fix NETWORK_FAILED error in Chrome

Although the Google Chrome browser is one of the most used browsers, a lot of things could still go wrong when browsing the web using it. One of the errors you might encounter is the “ NETWORK_FAILED ” error. This kind of error in Chrome indicates that Chrome wasn’t able to send your request through the network connection. It could be that your computer has trouble connecting to a stable internet connection or there is some plugin in your Chrome browser that is causing the issue. The worst-case would be malware. But worry not for this post will guide you on what you can do when you encounter the NETWORK_FAILED error in Google Chrome. Make sure to follow each one of the options given below and see which one of them worked best for you.

Option 1 – Disable or remove any unwanted extensions in Chrome

As you know, browser extensions help in enhancing the browsing experience but there are also times when it does exactly the opposite, and such is the case with the NETWORK_FAILED error in Chrome. It could be that one of the extensions in your browser is the one that’s causing the trouble. To disable or remove these unwanted extensions, here’s what you have to do:

Launch Google Chrome, press Alt + F, move to More tools, and click Extensions.
Look for Search.tb.ask.com or any other unwanted add-ons, click the Recycle Bin button, and choose Remove.
Restart Google Chrome, then tap Alt + F, and select Settings.
Navigate to the On Startup section at the bottom.
Select “Open a specific page or set of pages”.
Click the More actions button next to the hijacker and click Remove.

Option 2 – Run the Malware Scanner and Cleanup tool in Chrome

If removing or disabling the unwanted extension didn’t help in fixing the error, you can try using the built-in malware scanner and cleanup tool in Google Chrome. These tools help you get rid of any unwanted pop-ups, ads, unusual Startup pages, toolbars, and even malware.

Option 2 – Run the Malware Scanner and Cleanup tool in Chrome

Launch Google Chrome and then tap the Alt + F keys.
After that, click on Settings.
Next, scroll down until you see the Advanced option, once you see it, click on it.
After clicking the Advanced option, go to the “Restore and clean up the option and click on the “Restore settings to their original defaults” option to reset Google Chrome.
Now restart Google Chrome.

Option 3 – Try to disable the Proxy

If you are using a proxy, you might want to consider disabling it as it could have something to do with the NETWORK_FAILED error.

Tap the Win + R keys to open the Run dialog box.
Then type “cpl” and hit Enter or click OK to open the Internet Properties.
After that, go to the Connections tab where you should see the LAN settings. Click on it.
Next, uncheck the “Use a Proxy Server for your LAN” and ensure that the “Automatically detect settings” option is checked as well.
Then click Ok and then Apply to save the changes made.
Restart your PC.

Option 4 – Flush DNS and reset TCP/IP

Click the Start button and type in “command prompt” in the field.
From the search results that appear, right click on Command Prompt and select the “Run as administrator” option.
After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
- ipconfig /release
- ipconfig /all
- ipconfig /flushdns
- ipconfig /renew
- netsh int ip set dns
- netsh winsock reset

After you key in the commands listed above, the DNS cache will be flushed and the Winsock, as well as the TCP/IP, will reset.

Now restart your computer and open Google Chrome then try opening the website you were trying to open earlier.

Option 5 – Delete the WLAN Profiles

Deleting the WLAN Profiles might be a good idea if you are not able to connect to the internet on your computer and if you’re using Wi-Fi. It could be that the networks that were connected previously have gone rogue which is why it is not connecting properly. And so deleting the WLAN profiles would be for the best. That should do it.

Fix Steam stuck on Allocating disk space

If you have been stuck on allocating disk space on steam you know how annoying this error could be. Here you are, with your new game eager to play it and relax a little and all of the sudden steam gets stuck on allocating disc space. Luckily this error is fixable, follow provided guide to fix the error and continue with installing the game.

Restart computer
An old age solution of turning it off and turning it back on but in this case, it works 90% of the time.
Run Steam as administrator
Allocating disk space when done by a third-party application can be a task that requires privileges higher than the normal user. Find the steam executable file in the installation folder, right-click on it and run it as an administrator
Clear Steam cache
Launch Steam in admin mode. Once in the client, click on Steam at the top left corner of the screen. From the drop-down box, click on Settings. Once in the Settings, navigate to the Downloads tab. Click the Clear Download Cache option. Click OK on the prompt to confirm your action. Wait for the process to complete. When done, save changes and exit the client.
Change download server
Launch Steam client in admin mode. Once in the client, click on Steam at the top left corner of the screen. From the drop-down box, click on Settings. Once in the Settings, navigate to the Downloads tab. Click the drop-down menu under the Download Region. Choose a different server to download from. Exit the Steam client.
Refresh installation files
- Kill a Steam process in Task Manager.
- Navigate to your Steam folder
- Inside the Steam folder, select everything except the steamapps folder and the Steam.exe executable file.
- Tap the Delete key on your keyboard.
Turn off firewall
Firewall can prevent steam and cut access to system operations, disable firewall to fix this issue.
Stop overclocking
If you have overclocked your PC, you can simply reverse the change. The steps you will need to take depends on the overclocking software. Launch the software and look for the option to stop the overclocking. Once done, restart your computer, rerun the game installation.

How to send your PDF file to amazon Kindle

Kindle is, without doubt, a great piece of hardware, perhaps it is the closest thing to a book within the domain of digital devices. With its low price and usability, it has found itself in many homes and within the grasp of many readers in the world. You can buy digital books in the Amazon store for fraction of a regular price if it digital Kindle edition. You keep your library in the cloud and download just books you want to read on your device. In this article, we will explore how you can send your existing PDF or any other supported file that you already have to your kindle device so you can read it on it.

Before we begin, you should make sure the file you're trying to convert is compatible with the Kindle:

HTML RTF JPEG GIF PNG BMP or PDF The compatible file types cover most formats you're likely using, but if you find the document you want on your Kindle isn't compatible, there are a few ways to convert it. In the program it typically opens into, like Microsoft Word for .doc files or an image editing apps for .PNG ones, select 'Save As', and in the drop-down menu, see if any of the compatible options are available. If not, you could try a PDF converter tool. There are plenty of great paid options and a few good free ones too.

Transfering PDF

To get a PDF on a Kindle, you're going to need to know your Kindle's email address. You'll need to head over to the Amazon website and sign in first. Select 'Your devices and content', click 'Manage Devices'. You should see a list of the books you have assigned to your Kindle account, above this list, in a toolbar should be some options - you'll currently be on 'Content', which should be followed by 'Devices', 'Preferences' and 'Privacy Settings'. Click on 'Devices', and in the next menu, select the option for the Kindle you want the document on. You'll be brought to a Device Summary page which tells you your Kindle email as well as the type of device it is. You now need to approve your personal email, so that when the Kindle receives your PDF, it knows to download this. Make sure the email you approve is the one you're planning to send documents to your Kindle from otherwise it won't work. To approve your email address follow the steps for finding your Kindle email address but instead of selecting 'Devices' in the top bar, click 'Preferences'. Scroll down this list until you find Personal Document Settings, and select this option so it expands into more options. From here, scroll down until you find 'Approved Personal Document E-mail List'. This list will show people who can email stuff to your Kindle, Below the emails is an option to 'Add a new approved e-mail address', which you should select. Enter your email address and click 'Add address' to get yourself approved. Head over to your email client of choice, attach the file to an email, and send the email to your Kindle email address. You're able to send multiple documents at once, so if you have loads of files you want on your Kindle, you don't need to send separate emails. If you're sending over a PDF file, you can ask Amazon to automatically convert the file into a Kindle one, which lets you annotate the sections and change the font size. Simply put the word 'convert' as the subject line and the rest will be handled for you. 'Sync Your Kindle'.

CHKDSK cannot open volume for direct access

One of the most useful built-in tools in Windows 10 is the Check Disk or CHKDSK utility. It is the one that maintains the integrity of the disk that’s connected to a computer which can be launched using the GUI or graphical user interface and using the command line. There are a lot of things that warrant the running of this built-in utility and one of these things is the readability of the disk. Recently, a number of users reported that they encountered an error when they tried to run the CHKDSK utility – the error states, “Cannot open volume for direct access”. This kind of error in CHKDSK appears each time the command line is launched according to the affected users. As per the users who encountered this issue, they receive the following error messages when they tried running a ChkDsk command:

“C:WINDOWSsystem32>chkdsk /f g: Cannot open volume for direct access. C:WINDOWSsystem32>chkdsk /f f: The type of the file system is NTFS. Volume label is 0529357401.”

To fix the “Cannot open volume for direct user access” error, here are some suggestions that might help. Follow them carefully.

Option 1 – Try running the CHKDSK utility on Boot

On the other hand, you can also try to run the CHKDSK utility on Boot so you can fix the error and recover any damaged segments of the drive.

Open an elevated Command Prompt and enter this command: chkdsk /x /f /r
After that, you will a message that says, “Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”
Type Y and tap Enter to schedule a CHKDSK scan once your computer reboots next time.

Option 2 – Try to run the Primary Hard Disk Self Test

The next thing you can do to fix the problem is to run the Primary Hard Disk Self Test by following the steps below.

You need to boot your computer into the BIOS first.
After that, go to the Diagnostics tab and select the “Primary Hard Disk Self Test” option. Note that it may be different depending on the motherboard with different manufacturers but they should imply the same thing.
Now, wait until the test is completed, and then boot your computer normally.

Option 3 – Try to check the hard drive’s health

The next thing you can do to resolve the issue is to check the health of your hard drive using the WMIC utility in the Windows Command Prompt. This utility will check if your hard drive has any problems which resulted in the “Cannot open volume for direct user access” error.

Option 4 – Try to disable various restrictions on your hard drive

You might also want to disable the various restrictions on your hard drive since it is possible that it is encrypted or restricted which explains why you are unable to perform any operations in it and throws the “Cannot open volume for direct user access” error instead. For instance, if you have BitLocker, you can try to disable it and see if it fixes the error or not.

Option 5 – Try to uninstall or disable the Drive Locking feature on your hard drive

You could also look for any Drive Locking feature on your hard drive that tricks disk changes as it might be the root cause of the problem. Thus, if you find one, you need to either uninstall or disable it and then execute a check disk command to resolve the problem.

Option 6 – Try to disable the application service

Disabling the application service can also help you fix the problem. How? Refer to these steps:

Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and then hit Enter to open the Services Manager.
Next, scroll down among the list of services and look for the service related to the security software or disk checker software.
Once you find it, right-click on that service and select Properties.
After that, change its Startup type to Disabled and click on the OK and Apply buttons to save the changes made.
Now restart your computer and don’t forget to enable the service back once the disk check is completed.

Option 7 – Try to use Repair Volume via Windows PowerShell

You could also try to use the Repair Volume using Windows PowerShell. All you have to do is open PowerShell as admin and type the “repair-volume -drive letter <DRIVE LETTER>” command and then tap Enter to run Repair Volume. This should resolve the error.

MS Edge, autoplay video blocking coming

Microsoft Edge may be about to win a lot of fans by introducing a new feature that it says could prevent one of the most annoying things about being online. A new update to the browser suggests it is looking at a way to block auto-playing videos by default when a user navigates to a website. People spotted a new entry to the Microsoft Edge Canary browser where the company tries out its in-progress updates, that suggests auto-playing videos may have had their day at last. The new addition, for Mac, Windows, and Linux systems, is called “Autoplay Limit Default Setting”, with the description suggesting that Microsoft Edge would set the media autoplay setting to "Limit" as a default - stopping videos from starting up when a user lands on a website. Currently, Edge offers two options for users to control media autoplay - "Allow" (the current default setting), where all videos on a website will play automatically with sound, and "Limit", where media won’t be autoplayed on sites that a user has previously visited. It appears that Microsoft is looking to test the feature in Canary before rolling it out to a wider user base - as blocking autoplaying videos can cause issues for some websites. The same Canary entry also hints at a future "Block" option, which would presumably stop any videos or media from playing when a user lands on a website. However, this feature, which is also listed as being available for Mac, Windows, and Linux systems, doesn't appear to be enabled as yet. If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

Fix oobesettings error inside Windows 11

Oobesttings error is the blue screen of death error caused by some faulty settings inside the Windows registry. The good news is that this is not a hard error to fix and if by any chance you are one of the unfortunate people getting this dreaded annoying error, please do keep reading because we have several things that you can do in order to eliminate this issue from your computer.

Reboot your system

This is the easiest and straightforward solution and can work sometimes since if the system has not been properly rebooted in a while memory could be filled with various processes and it can trigger oobesettings error. A simple restart of the system can solve the issue by decluttering files and emptying memory.

Scan and repair with SFC

If rebooting the system was not helpful and sadly you still receive an error then let's scan and repair system files by using Windows built-in tool SFC. In order to use this, we will have to run the command prompt in elevated administrator mode. Follow instructions closely. First click on the search icon on the taskbar and type in CMD The command prompt will show as a search result, on the right side click on Run as administrator. Once it opens type in following command: sfc /scannow and press ENTER Wait for the process to finish completely and restart your device after.

Repair the system registry

If the SFC scan has not repaired the issue then we will move to the next solution that involves repairing the system registry itself. Please note that you need to follow step-by-step for provided instructions since playing with the system registry can cause some serious issues if not done properly and can even render the system unstable. That being said, let's begin: Press ⊞ WINDOWS + R to open Windows run dialog Type inside regedit and press ENTER Inside registry editor locate the following key: HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Session Manager/ Memory Management. and click on it to see properties Inside the properties right-click on CommitLimit value and choose delete. Confirm with yes. Close registry editor and reboot your computer.

Reset Windows 11

If even clearing key inside the registry editor has not helped next step would be to reset the system itself. Press ⊞ WINDOWS + I to open Windows settings and click on System on the left. Inside on the right part click on Recovery In recovery click on the button next to Reset this PC that says Reset PC Choose between keep my files and remove everything (a better option is remove everything, but be sure that you have all your files on a separate drive backed up) Choose between Cloud Download or Local reinstall. Click on next to confirm choices and after that on Reset to start the reset process. Follow onscreen instructions until it is fully done.

Display isn't compatible with Windows Error

Upgrading your computer from Windows 7 or Windows 8 to Windows 10 or even upgrading Windows 10 to a new version is not that simple. The setup initially checks for all the drivers and other software utilities installed on your computer and verifies and blockages or upgrade or upgrade blocks with respect to any of those drivers or any of those software utilities regardless if you use the Windows 10 ISO or the Windows 10 Upgrade Assistant. One of these common errors, when you upgrade or update your computer, is the “The Display is not compatible with Windows 10” error. This kind of Windows Upgrade error is related to the compatibility of the Graphics Driver installed in your computer. But worry not for this post will guide you in fixing this problem. The “The display is not compatible with Windows 10” error has the same workarounds as the following errors:

These devices aren’t fully compatible with Windows 10.
The display is not compatible with Windows 10. Check with the manufacturer for support.
The display manufacturer hasn’t made your display compatible with Windows 10. Check with the manufacturer for support.

To resolve this Windows Upgrade error, here are some suggestions that could help:

Option 1 – Check for incompatible drivers in your computer

Open the Device Manager from the WinX Menu.
Then expand the list for Display Adapters.
Next, right-click on the NVIDIA Graphics Card list and select Enable.
After that, right-click on it again and click on the “Update Driver Software…” option.
After doing so, a new window will appear and from there, click on the “Search automatically for updated driver software” option.
Then check if Windows is now able to detect your Graphics Card as well as the latest driver for it. If not, proceed to the next step.
Right-click on the driver again and click on the “Update Driver Software…” option.
Now click on the Browse my computer for driver software option and then click on Let me pick from a list of device drivers on my computer.
Afterward, select a compatible driver for your computer named NVIDIA Graphics Card and then proceed.
Wait for the whole process to be completed and restart your computer to successfully apply the changes made.

Option 2 – Get the latest version of Graphics drivers from the manufacturer’s website

In case you don’t know the manufacturer of the Graphics Processing Unit or GPU of your computer, you need to check first. They’re usually NVIDIA, Intel, or AMD. So if your computer’s Graphics Processing Unit is manufactured by NVIDIA, you need to get the latest version from their official website.

Option 3 – Try to install the latest Graphics driver in Compatibility Mode

If you’re not able to install the Graphics drivers you’ve downloaded, you can try installing them again but this time using Compatibility mode. Follow the steps below to do so:

You need to download the driver and place it on your desktop.
After that, right-click on it and select Properties.
Next, switch to the Compatibility tab where you should see two options:
- Compatibility troubleshooter, and let Windows figure out what works best for you. If it fails, follow the next.
- Manually choose the version of Windows it was correctly working.
You also have the option to change the DPI settings and see if that helps. Then click the Apply and OK buttons.
Now right-click on the file and select the “Run as administrator” option to install. After that, you should now be able to change your screen aspect ratio to what you were using early on.

Note: If you have other programs that won’t work on the existing version of Windows, then make sure to run the program in a Compatibility mode.

Option 4 – Try to run the Program Compatibility Troubleshooter

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

Fix False Notifications in Action Center

There is a central location in Windows 10 that allows users to view all the notifications from its Action Center. Aside from viewing notifications, users can also manage them and take necessary actions in just one single place. Notifications in Windows 10 look similar to a message icon but can be at variance in function. However, recently, a number of users reported that even though they receive notifications about new actions but when opening them, they see nothing. In other words, the notification is false, and to fix this, read on as this post will provide you a couple of workarounds. The Windows 10 Notifications and Action Center notification messages might show a mismatch. For instance, Windows 10 may say that you have some notifications but when you open Action Center, you find it empty and there are actually no notifications there. Take the case of the following screenshot, the Windows 10 Notification says that there are 6 new notifications available for viewing but the Action Center says otherwise. Before you troubleshoot the problem, you might want to run System Restore especially if you’ve made some changes in your computer prior to this issue which might have messed with the Windows 10 Notifications and Action Center. 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 problem is fixed or not.

If the problem wasn’t fixed and you’re still getting false notifications, you might want to troubleshoot the problem further using the options given below.

Option 1 – via Windows PowerShell

In the Start search, type “PowerShell” in the field and hit Enter to pull up the Windows PowerShell window.
Next, copy and paste this command and hit Enter to execute it: Get-AppxPackage | % { Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppxManifest.xml” -verbose }
After that, reboot your computer and check if the false notifications are now gone.

Option 2 – Try renaming the Usrclass.dat file

DAT errors like the ones that are associated with the Usrclass.dat file, most likely occur during computer startup, program startup, or while you try to use a specific function in your program. Even so, it can easily be fixed. How? Refer to the given steps below.

Tap the Win + R keys to open the Run dialog box.
Then type %localappdata%MicrosoftWindows and hit Enter to get to the location of the UsrClass.dat file.
After that, look for a file named UsrClass.dat and once you’ve found it, right-click on it and select the Rename option.
Now rename the file to UsrClass.old.dat and then restart your computer and see if the problem is now fixed or not.

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Fix Mfplat.dll missing on Windows 10

Option 1 – Install the Media Feature Pack for Windows 10 N version

Option 2 – Enable Media Playback via Command Prompt

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

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Option 1 – Manually clear the recent files

Option 2 – Disable the feature via Control Panel

Option 3 – Disable the feature using the Group Policy Editor

Option 1 – Disable or remove any unwanted extensions in Chrome

Option 2 – Run the Malware Scanner and Cleanup tool in Chrome

Option 2 – Run the Malware Scanner and Cleanup tool in Chrome

Option 3 – Try to disable the Proxy

Option 4 – Flush DNS and reset TCP/IP

Option 5 – Delete the WLAN Profiles

Restart computer

Run Steam as administrator

Clear Steam cache

Change download server

Refresh installation files

Turn off firewall

Stop overclocking

Before we begin, you should make sure the file you're trying to convert is compatible with the Kindle:

Transfering PDF

Option 1 – Try running the CHKDSK utility on Boot

Option 2 – Try to run the Primary Hard Disk Self Test

Option 3 – Try to check the hard drive’s health

Option 4 – Try to disable various restrictions on your hard drive

Option 5 – Try to uninstall or disable the Drive Locking feature on your hard drive

Option 6 – Try to disable the application service

Option 7 – Try to use Repair Volume via Windows PowerShell

Reboot your system

Scan and repair with SFC

Repair the system registry

Reset Windows 11

Option 1 – Check for incompatible drivers in your computer

Option 2 – Get the latest version of Graphics drivers from the manufacturer’s website

Option 3 – Try to install the latest Graphics driver in Compatibility Mode

Option 4 – Try to run the Program Compatibility Troubleshooter

Option 1 – via Windows PowerShell

Option 2 – Try renaming the Usrclass.dat file