Perform System Restore when Windows won’t boot

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!

Many Windows 10 users often change the IP addresses of their computers’ network adapter in order to connect to the internet or network they belong to in times when there is no automatic connection for their computers. In most cases, access to modifying this setting is restricted for some odd reason even if you are an administrator. So if you are one of the users whose Windows 10 VPN IPv4 Properties are not working, this post can help you remedy that so that you can open and edit the IPv4 Properties on your Windows 10 PC. The common way to change IP settings is by going to Settings > Network and then to Internet > Change adapter options > Select Network adapter > right click and open Properties. From there, you can select TCP/IP 4 and modify it. If you aren’t able to do this, refer to the instructions laid out below to troubleshoot the problem in accessing the IPv4 Properties.

Option 1 – Try using PowerShell to manually set the IPv4 properties

As you are not able to set it using the interface, you can do so using PowerShell instead. Note that this option will only work for you if you run PowerShell with administrator privileges. After opening PowerShell, according to many users, you have to run the this command – set-DnsClientServerAddress -InterfaceAlias “Ethernet” -ServerAddresses xxx.xx.xxx.xxx,x.x.x.x,xxx.xx.xxx.xxx,x.x.x.x Usually, Ethernet is the name of your network adapter which is set by default. If you want to see the actual name of your network adapter, you can just type this command and tap Enter after doing so – Get-NetAdapter -physical | where status -eq 'up' After entering the given command, you will see a list of active Ethernet adapter in your computer as you can see on the image above. Note that the 4 sets of X like the one on the image below should match with the sequence:

Option 2 – Try editing the rasphone.pbk files

The rasphone.pbk files stores property for the connections and since you are not able to access the IPv4 properties, it is most likely that it has been disabled here. The good thing is that you can open these files and edit them using Notepad. Refer to the steps below to do so.

• Open the Windows Explorer and then enable the show hidden files option.
• After that, look for the files at this location – C:Users <username>AppDataRoamingMicrosoftNetworkConnectionsPbk_hiddenPbkrasphone.pbk
• Then right-click on it and select the “Open with” option and choose the Notepad app.
• After opening the file, look for “IpPrioritizeRemote” from the long list.
• Once you found it, set its value from “1” to “0”.
• After that, look for “IPInterfaceMetric” and set its value to “1” and tap Ctrl + S to save the changes you’ve made, and then exit and try accessing the IPv4 properties again. It should work, but if you’re still unable to access it, try the next option below.

Option 3 – Enable the Split Tunneling if you use VPN

All data goes back and forth when you are using a VPN service on your computer. And since you are using VPN, it could be that it disables the IPv4 interface. If that’s the case, you need to stay connected with both the local network and VPN and to do so, you have to enable Split Tunneling. How? Follow these steps:

• Open PowerShell with administrator privileges.
• Next, type in “Get-VpnConnection” and tap Enter. After doing so, it will give you the exact name of your VPN.
• After that, type in “Set-VpnConnection -Name “yourVPNName” -SplitTunneling $True” and tap Enter. Once you enter the command, it will free your IPv5 settings so that you can change it to connect with your local network if you prefer it to.

The Windows 10 operating system utilizes a variety of measures in order to track your app launches so that it can boost both your start and search results. It can personalize the start menu based on the apps that you use the most on the Start menu as well as the search results. This way, the App Launch Tracking is definitely useful especially when you want to access your favorite and frequently used apps quickly in the Start menu and search results on your Windows 10 computer. On the other hand, Windows 10 provides users with the ability to control their privacy settings in order to protect the privacy of users. Windows 10 users can either opt to enable the app launch tracking to improve the start menu and search menu or opt to disable the app launch tracking in order to prevent the Windows operating system from tracking that you open if you really value your privacy that much. Whichever setting you prefer, you need to change the privacy control settings as well as make some tweaks in the Windows Registry in order to turn on or turn off the app launch tracking feature.

Option 1 – Turn off or turn on app launch tracking via Settings

• Go to Settings and click on Privacy.
• After that, toggle On the “Let Windows track app launches to improve Start and search results” option on the right side of the page under the General Settings to enable the app launch tracking feature.
• And of course, if you wish to disable the app launch tracking feature, simply toggle Off the “Let Windows track app launches to improve Start and search results” option on the very same page under General Settings.
• After that, close the Settings window.

Note: Keep in mind that when you disable the app launch tracking feature, the “Show most used app” setting will either be grayed out or labeled as “Disable” on your Windows 10 computer. Thus, if you want to keep viewing the most used apps, just re-enable the app launch tracking feature if you have disabled it.

Option 2 – Turn off or turn on app launch tracking via Windows Registry

Before you proceed, make sure to create a System Restore point

• Tap the Win + R keys to open the Run dialog box.
• Then type “Regedit” in the field and hit Enter or click OK to open the Registry Editor.
• Next, navigate to the following path:

HKEY_CURRENT_USERSOFTWAREMicrosoftWindowsCurrentVersionExplorerAdvanced

• After that, right-click on the Advanced folder and then click on New to create a new 32-bit DWORD value.
• Name the newly created DWORD as “Start TrackProgs” and set its value to “1” to enable the app launch tracking feature.
• If you want to disable the app launch feature, set “0” as the value instead of 1.
• Now click OK and restart your computer.

Take note that you still have to create a 32-bit DWORD value even if you are using a 64-bit Windows computer.

Building a custom PC is a great feeling but it can sometimes not be ideal and we are not talking about breaking or losing parts. What we mean is that choosing the right components can be sometimes a difficult task. Of course, picking a PC case can have its issues, choosing the right power supply can be tricky but pairing all components together, especially CPU and GPU can be tricky. Builders with no depth knowledge and experience can sometimes choose improper CPU or GPU, picking one of them to be much more powerful than another thus not using it to its full potential because another component cannot handle stuff at the same speed. In order to not be trumped by this kind of stuff, there is a website that is completely free and you do not even need to be registered in order to use it. Bottlenet calculator link here What is even better, once you input your components you will get advice on what to change in order to tweak the system a little more to avoid bottlenecks even more. It is a very useful tool and we are advising you to use it in order to save money but not throwing it on some component that will be half used.

Error Code 12 - What is it?

Error code 12 is a typical Device Manager error code. It usually pops on the computer screen when the computer experiences device driver problems or system resource conflicts.

Error code 12 is mostly displayed on the computer screen in the following format:

‘This device cannot find enough free resources that it can use. If you want to use this device, you will need to disable one of the other devices on this system.’

Solution

Error Causes

The error code 12 occurs when 2 devices installed on your PC are accidentally assigned the same I/O (input/output) ports or the same direct memory access channel.

This assignment is known to be made either by BIOS (Basic Input/output system) or by the operating system. It can sometimes be assigned by a combination of the two. Also, code 12 can also appear on your monitor screen if the BIOS didn’t allocate enough resources to the device.

Although this error code is not fatal, it is nonetheless advisable to fix it immediately to avoid inconvenience and hassle. This error is most likely to lower and hamper the performance of your system.

Further Information and Manual Repair

Here are some of the easiest and most effective do-it-yourself methods to resolve error code 12 on your PC. To perform these fixes, you don’t have to be technically sound or a computer programmer for that matter. Simply follow the steps to fix the problem right away.

Method 1 - Use the Troubleshooting Wizard to identify the Conflict

To repair error code 12, simply go to the start menu and type Device Manager in the search box. Now go to the Device Properties dialog box. After that click on the ‘General Tab’ and now access Troubleshoot to start the Troubleshooting Wizard.

The Wizard will ask you some questions and provide you a solution accordingly. Follow the instructions and resolution steps provided by the troubleshooting wizard to repair error code 12 on your PC.

Method 2 - Disable the Device to Resolve

By disabling the problematic device in the Device Manager, Windows will ignore that piece of hardware. Once disabled, Windows will then no longer assign system resources to that device and no driver/software will be able to use that device.

To disable, go to the Device Properties in the Device Manager and then click the Driver tab. Click disable located at the bottom of the window. Then you will be prompted with a message stating ‘Disabling this device will cause it to stop functioning. Do you wish to disable it?’ Click yes to continue and then click OK to save changes.

Method 3 - Restore Your PC to its Previous State

Another method to resolve error code 12 is to restore your PC to its previous state when it was working properly.

For this, it is important to backup all your data first to avoid data loss issues that are likely to occur during this process. Creating backups manually can be a time-consuming and tedious task. To save time and quicken the process, it is best to install a program like DriverFIX.

DriverFIX is a user-friendly and intuitive device driver management software that helps backup all your data automatically and efficiently, while simultaneously restores your PC back to its previous state before you encountered problems.

Click here to download DriverFIX on your system to resolve error code 12

Windows 10 has displayed one of the most efficient and user-friendly interfaces. However there have been many issues on the backend of this commonly praised operating system: For example, Windows Update is still a wonky and error-laded system application. One example of this error is Windows Update Error 0x80073712 which stands in the way of users just wanting to keep their PCs updated hassle-free. The error code 0x80073712 signifies that a file needed by Windows Update to function is either damaged, missing, or corrupted. However, this does not mean that your Windows version will forever stay as-is with no mode to update it. Windows Update Error 0x80073712 is perfectly fixable with the set of provided steps below and some of Windows’ built-in troubleshooting steps:

Solution 1: Open Windows Update Troubleshooter

1. Open the Windows Update Troubleshooter by pressing the Windows and S keys simultaneously.
2. Enter the word “Troubleshoot” in the search box and select the Troubleshoot result
3. On the new window, select “Windows Update” to troubleshoot.
4. Run the troubleshooter, then open Windows Update and try to install the update again.

Solution 2: Run the DISM tool

1. Open the command prompt by pressing Windows and S keys simultaneously
2. Enter “cmd” in the search box. Right Click command prompt among the results and select “Run as administrator”
3. In the Command Prompt window type the following and press the Enter key after every command

DISM.exe /Online /Cleanup-image /Scanhealth DISM.exe /Online /Cleanup-image /Restorehealth

4. To close the Administrator: Command prompt window, type Exit, and then press Enter.
5. Run Windows Update again.

Solution 3: Rename the Software Distribution folder

1. Open the command prompt as previously mentioned
2. Input the following command pressing Enter after every line net stop wuauserv net stop cryptSvc net stop bits net stop msiserver rename c:/windows/SoftwareDistribution/softwaredistribution.old net start wuauserv net start cryptSvc net start bits net start msiserver exit
3. Restart the PC and run the updater if it works again.

Solution 4: Restart Windows Update Services

1. Press the Windows logo key and R together to open Run -> Input services.msc -> and press Enter
2. Search for the Windows Update service -> Check its status
3. If it is not indicated, right-click on the service and select Start to force start your Windows Update
4. If you see an error, locate the Startup Type option and set it to Automatic
5. Now you should reboot your computer and see if your Windows Update is OK

Solution 5: Fix Registry Issues

If after all the aforementioned solutions, you still experience problems with Windows Update, the problem may lie in the registry that is either damaged or corrupted. You may choose to do manual editing of your Windows registry by opening your Windows registry editor. But doing so is risky as one wrong letter may do incalculable damage to your system. To do so safely for more inexperienced users we recommend using a third-party registry cleaner/tools, many of which can be found online.

If your browser of choice is Google Chrome then sit back and enjoy the ride as we are going through some great productivity tips for it. So without further talking let's dive right into them.

Browsing using tabs groups in Chrome

If you have plenty of tabs opened during your browsing session clogging your screen then you will be happy to know that it is possible to group tabs under, well tabs groups. The good part is that you can name groups however you wish and even code them with color if you wish so. Right-click a tab for a website you want to put into a group. Select Add tab to the new group, then type in a name for the group and choose a color. Create as many groups as you want in this way. To put a tab into an existing group, right-click the tab, select Add tab to group, and select the group to which you want to add the tab. To remove a tab from a group, right-click it and select remove from group.

Send a highlighted text to another Chrome user

If you want to send some text or article you stumbled upon while surfing the internet, there is an easy way to do it providing that the target user is also on Google chrome. Highlight the text you want to share, then right-click it and select Copy link to highlight. That creates the link and puts it into your clipboard. Copy the link from your clipboard and send it to someone. When they click on it, they’ll be sent to the section of the web page with the text you want to share, and the text will be highlighted in yellow.

Sync Google Chrome via the account on multiple devices

If you use multiple devices there is an option to sync Chrome through all of these devices and get all of your bookmarks, history, etc. All you have to do is click on three dots in the upper right corner and click on synchronize. Take note that you will need a Google account in order to sync accounts and you will need to be logged in on all devices you are syncing.

Use multiple search engines

If you need or want to use multiple search engines inside Chrome like BING, DuckDuckGo, etc. now you can and you can do it very easily. Click the three-dot menu icon at the top right of Chrome and select Settings, Search engine, Manage search engines. Under the Default search engines section toward the top of the page, you’ll see a list of search engines you can search through without having to navigate to their sites. To perform a search using any of these engines, such as Bing.com, type bing.com into the address bar and press the Tab key. The leftmost part of the address bar changes, it will read Search Bing or whatever search engine you’ve typed in. Now just type in your search term and press Enter, and you’ll do a search with that search engine.

Search similar websites in content

When you are searching for content on google there is a very easy and quick way to find similar content on the internet. For example, if you want to find more sites similar to the searched site just type in the address bar in front of address related: For example, if you want sites similar to Microsoft, you would type related:www.microsoft.com

Open specific set of websites on Chrome startup

If you need and want to open a specific set of pages each time Chrome is booted know that you can. Click the three, dot icon at the top right of Chrome and select Settings, You and Google, then scroll to the On startup section at the bottom of the screen. Select Open a specific page or set of pages, then click Add a new page, type or paste in the page’s URL and click Add. Add as many pages as you want this way. That’s it for now on Google Chrome tips for better productivity, tune-up again to errortools.com for more articles.

This post will guide you in fixing high CPU, Memory, and Disk usage problems caused by NTOSKRNL.exe. NTOSKRNL stands for “NT Operating System Kernel. This file is a kernel image that is responsible for a lot of systems-based processes such as Hardware Virtualization, Process, and Memory. Aside from that, it is also the one that compresses the old pages of memory that reduces the overall amount of memory being used. If you notice that your computer is running slowly and you find that the NTOSKRNL.exe file is hogging your resources such as disk usage, CPU usage as well as memory usage, then read on as this post will guide you in fixing the problem caused by NTOSKRNL.exe. Make use of the options given below to resolve the issues caused by NTOSKRNL.exe. 1] Scan your computer for potential malware There might be a good chance that your computer might be infected with malware. And this malware might be associated with the NTOSKRNL.exe file and hence making it consume a lot of system resources. So, I would really recommend you to make sure that your Antivirus is up to date and then scan your computer with it specifically the C:/Windows/System32 folder because this is the location where the NTOSKRNL.exe file is located.

Option 1 – Put your computer in a Clean Boot State

The first thing you have to do is to put your computer in a Clean Boot State as this can help you in finding any incompatible programs that are causing the problem.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

Once you’ve found any incompatible programs, you need to uninstall them. Refer to the steps below to do so.

• In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
• After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
• From there, look for the concerned program and select it and then uninstall it.

Note: If you have downloaded the app from the Windows Store, you can simply right-click on it from the application list and then uninstall it.

Option 2 – Update or rollback 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 to run the DISM tool

If the first two options didn’t work, then running the Deployment Imaging and Servicing Management might. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

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

Option 4 – Try to stop the Runtime Broker process

The RuntimeBroker.exe or the Runtime Broker process is the one that monitors access to Windows APIs to make sure that the apps do not violate the core security of Windows. This process usually leaves a very small footprint. However, there are times when it consumes more resources than it’s supposed to and does not release memory after the work is done that results in a memory leak. As a result, it affects NTOSKRNL.exe which is why you have to stop the Runtime Broker process. To do so, refer to these steps:

• Tap the Ctrl + Shift + Esc to open the Task Manager.
• After opening Task Manager, go to the Processes tab and look for the Runtime Broker process.
• Once you find it, check if it is using more than 15% of your memory. If it is, then you most likely have an issue with an app installed on your computer.
• Select the Runtime Broker process and right-click on it and then click on the End Task option to end its process.

Option 5 – Try to run the Performance Troubleshooter

• Tap the Win + R keys to open the Run dialog box.
• Type “msdt.exe /id PerformanceDiagnostic” in the field and hit Enter to open the Performance troubleshooter.
• Then click on Next to get started. Wait until the process is completed.

Option 6 – Try using the Windows Performance Toolkit

You can also use the Windows Performance Toolkit in finding the root cause of the problem. Just refer to the following steps to use this toolkit.

• Search for “cmd” in the Cortana Search box and click on Command Prompt from the search results to open it.
• Next, type in the command given below or copy and paste it and then hit Enter:

xperf -on latency -stackwalk profile -buffersize 1024 -MaxFile 256 -FileMode Circular && timeout -1 && xperf -d cpuusage.etl

• After executing the command, wait for at least 60 seconds and then check the logs of the Windows Performance toolkit which is stored in a file named cpuusage.etl in the folder located at C:/Windows/System32. From there, you should see a list of all the causes of the System Resources being hogged.

The Windows 10 operating system comes with a user-friendly interface as well as better security features compared to its previous versions. One of these new features is the “Recently Opened Files” feature which displays all the files you’ve opened recently in File Explorer. Although it might seem useful, some users see this as a privacy concern especially if there are other users that use the same computer. If you are one of these users, read on as this post will guide you on how you can disable the “Recently Opened Files” feature in Windows 10. There are three ways you can disable the “Recently Opened Files” feature. You can manually clear the recent files, or disable the feature via Control Panel. You can also do it using the Group Policy Editor.

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.

So, you just made some popcorns, dimmed light, relaxed in from of the TV, pressed play on your application and Blu-ray drive can not read your movie. Your movie night failed sadly, but there is hope and in this article, we are going to explore and offer you solutions on what to do when something like this happens so you do not miss another movie night and some hard-earned relaxation. Please note that in this article we are assuming that you are using a Blu-ray player on your PC, so some of the solutions presented are meant only for this case. So the first thing that you are supposed to do is to check the disc itself. You can turn the disc around and visually check the disc for fingerprints and scratches which can be fatal for disc playing, alternatively, you can try to play the same disc on another device and if it fails there also it is not the disc, it is your drive. So if it is no issue with the disc let's see that seems to be a problem with the drive. The common thing that could stop disc reading are cables, check all connections and cables in the back of your device to be sure that everything is plugged in correctly and nicely. After checking cables if the issue persists lens cleaning is the next step. Over time lens from the Blu-ray, the device becomes dirty and dust accumulates on it, there are special cleaning discs on market made especially for this purpose, to clean the dirty lens of optical devices. If you have one put it in and clean your lens. After lens cleaning with a specialty disc, a good idea would be to use compressed air in a can to reduce the dust inside so no excess dust will accumulate quickly again on the lens itself.

So the device is cleaned and checked and still no disc playing?

Update firmware first. In order to accomplish this visit your device manufacturer's website and follow instructions there on how to upgrade firmware. If this did not helped also update or reinstall device drivers. Go to device manager and update drivers for your device by right-clicking on it and choosing update driver. If none of the things helped, go to command prompt as administrator and type in SFC /scannow, leave the process to finish, and reboot.