World of Warcraft lost connection to server

What is Windows ImageAcquisition High CPU & Disk usage? The Windows Image Acquisition is the driver model in charge of the communication between the graphics hardware and the operating system. There are times when it causes high disk and CPU usage in Windows 10 systems which results in slow performance of the computer. To fix this issue, read on as this post will help you in addressing the problem. The cause of this problem might have something to do with the hardware or the drivers. And so if your computer becomes slow because of the Windows Image Acquisition process, here are some suggestions that might be of help. You can try to restart the Windows Image Acquisition service, run a System File Checker Scan, disconnect & reconnect imaging hardware as well as update and reinstall the drivers and updating the graphics drivers. For a complete set of instructions, follow the given options below.

Option 1 – Try restarting the Windows Image Acquisition Service

• Tap the Win + R keys to open the Run dialog box.
• Then type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• From there, look for the Windows Image Acquisition Service and check on its service Status.
• If the Service Status is blank, right-click on it and select Start. And if the service Status is Running right-click on it and select Restart. After that, check if your computer’s performance is now back to normal.

Option 2 – Try running a System File Checker scan

As you know, running a System File Checker scan can help in replacing missing files as well as repair the corrupted ones which might be the reason behind the problem.

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

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Restart your computer after the scan is completed.

Option 3 – Try disconnecting and reconnecting the imaging hardware and then update and reinstall its drivers

It could be that the hardware that calls for the Windows Image Acquisition service has some issues which are why disconnecting and reconnecting the imaging hardware like scanners, printers, cameras can help in fixing the problem. In addition, you can also boot your computer in a Clean Boot State so that you can find the problematic hardware by hit and trial method. Refer to the steps below to do so:

• 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.)

Option 4 – Try updating the Graphics drivers

• 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.

AVFoundationCF.dll is a type of Dynamic Link Library file. This DLL file is associated with AVFoundationCF and is developed by Apple Computer Inc. for Windows PC. This file functions similarly to any other DLL files. It comprises of small programs. This DLL file is typically needed to load and start the Apple iTunes utility. The inability to call this file or the files to load triggers the AVFoundationCF.dll error message on your system. The error message can be displayed in either of the formats on your PC:

“The program can’t start because AVFoundationCF.dll is missing from your computer. Try reinstalling the program to fix this problem.” "This application failed to start because avfoundationcf.dll was not found.” "Cannot find %COMMONFILES%AppleApple Application Supportavfoundationcf.dll." "Cannot start AVFoundationCF. A required component is missing: avfoundationcf.dll.” “Avfoundationcf.dll Access Violation." "Cannot register avfoundationcf.dll."

Solution

Error Causes

AVFoundationCF.dll error can occur due to numerous reasons. However, the most common reasons for this error code include:

• Viral infection
• Corrupt or invalid registry entries
• Apple Computer Inc. hardware failure such as bad hard drive
• Missing or deleted Avfoundationcf.dll file

It is recommended to resolve the error as soon as you experience it virtually because if the error code is related to viral infection on your system, it can expose your PC to privacy errors and data security risk. And if the error is triggered by registry issues, it can lead to serious threats like system crash, failure, and data loss. Therefore, the AVFoundationCF.dll error not only hampers your ability to access and start Apple iTunes program but it also puts your PC at serious risk.

Further Information and Manual Repair

To fix the error AVFoundationCF.dll on your PC, here are some of the best and easy to do solutions that you can try:

Check your Recycle Bin

Since dll files are shared files, there is a possibility that this file accidentally got deleted when you were uninstalling some other program on your system. If you experience missing AVFoundationCF dll file error message after performing any program on your PC, then chances are that it got deleted and maybe in your recycle bin. So, first, check your recycle bin and search for the dll file. If you find it, restore it to fix the error.

Update Device Driver

To resolve the issue, try performing a driver update. This can be done by downloading the latest drivers from the hardware manufacturer’s website. Now open Device Manager from the Control Panel and locate the hardware device that you want to update the driver for. Once you find the hardware you are updating the driver for, right-click on the hardware icon and choose properties. In the properties windows, click the driver tab. Now click the update driver button. To activate changes, restart your PC. To automatically update your computer's drivers when necessary, download and install DriverFIX.

Try Re-installing Apple iTunes Program

To do this, simply go to the control panel, select programs and then uninstall a program and then select iTunes.  Uninstall it and then repeat the same program and install the Apple iTunes program again on your PC by downloading the program from Apple’s official website.

Scan for Viruses

If the error still persists, then it is advisable to scan your PC for viruses. This can be easily done by running a powerful antivirus on your PC. However, please note anti-viruses are notorious for slowing down PC performance. So, may have to compromise on the speed of your system.

Clean and Repair the Registry

If the error is caused by invalid and corrupt registry entries and damaged Avfoundationcf dll file, then the best way to resolve is to download a powerful registry cleaner. We advise you to install Restoro on your PC. This is an advanced and a multi-functional PC Fixer integrated with multiple powerful utilities including a high functional registry cleaner, an antivirus and a system optimizer. The registry cleaning utility scans all the registry issues and removes all errors triggered by the registry immediately. It cleans the registry by wiping out all the unnecessary, obsolete and redundant files including invalid entries and bad registry keys. Furthermore, it also fixes the damaged and corrupt dll files including Avfoundationcf dll file. Thereby resolving the error right away. Furthermore, the antivirus deployed in this software scans for all types of malicious codes like viruses, Trojans, spyware, and malware and removes them. To ensure you don’t compromise on your PC performance, it is deployed with a system optimizer utility that boosts the speed of your computer dramatically. This tool is bug free, has a user-friendly interface and compatible with all Windows versions. Click here to download Restoro and resolve Avfoundationcf.dll error on your PC today!

What is Webguard?

Developed by Interesting Solutions, Webguard is a tool supposedly used for tracking those online who’ve developed a habit of tracking you. The application would provide logical analysis into a user’s website history, providing insight on what websites you’ve visited and also how persons are able to track your every move while browsing. While Webguard is unable to dispose of who specifically is tracking your computer usage, they’re able to determine what computer installed tracking codes or cookies on your computer system. In this case, it’s then left up to the user’s discretion to determine who they want to allow or block from tracking their online use.  Overall, this application allows the user some measure of freedom and control over their online experience. Like any other application, however, which has landed themselves a spot on Virus Total, Web guard has hidden agendas. At a distance, Webguard installs a service for Windows but later distributes advertisements. Technical details about Webguard include:

Product Version: 1.0.0.0 Original File Name: crss.exe Entry Point:  0x000C5AAE

Assessment of Webguard Potentially Unwanted Program

While Webguard claims to track your computer usage, information reported by the application isn’t sufficient for the common computer user. This brings us back to the ulterior motive or principal objective of developing Webguard – to advertise and generate revenue from clicks made by users on Ads displayed on Internet Browsers – namely Chrome, Internet Explorer and Firefox. Why should a computer user remove Webguard? Simply, it compromises one's Internet privacy and security and it keeps abreast of your Internet history. If you’re online for an extended period, you’ll see what Webguard does. While the publishers behind the application did not alert users to the use of web beacons, cookies for tracking, and other related tracking technology, that’s not why Webguard is considered unwanted. The program is potentially unwanted because of the unpredictable advertisements it displays. Not all sites are trusted and so it’s difficult to determine, in some cases, what websites are legit for business.

Remove Webguard with Spyhunter

In most cases, at least from what I’ve seen, Webguard is installed as a single application. After it was installed for this assessment, it could be found in ‘All Programs”. This meant that one could manually delete the application from their computer system (see manual steps below). However, is that really sufficient to completely rid your PC of Webguard’s blueprints? While you might opt to remove Webguard manually – maybe because it’s more economical – an automated process is able to completely eradicate hidden threats from Webguard. In comparison to manually removing Webguard, Spyhunter penetrates your computer system for all infections. In most cases, nasty threats are unable to be removed manually. Additionally, Spyhunter not only removes installed threats, but it detects incoming ones – hence, acting as a preventative tool. Furthermore, Spyhunter detects cookies placed on your computer by Webguard. These are all undetectable threats and so an automated tool, as Spyhunter, should be used to remove Spyhunter effectively from your computer.

Manual Steps for Removal of Webguard

I found this removal pretty simple. Depending on your Operating System, there will be slight discrepancies in the manual removal steps. Using the Windows 8 (8.1) OS on your computer:

• Step 1: Locate the CONTROL PANEL on your computer using the SEARCH option.
• Step 2: Once the search box appears , input 'CONTROL PANEL'.
• Step 3: The Control Panel option will then appear. From the menu, choose the "Programs" option.
• Step 4: Another menu will appear. Select "All Programs and Features".
• Step 5: From the 'Programs list', search for the Webguard application.
• Step 6: Right-click on Webguard when it's found.
• Step 7:  Choose the "Uninstall" option.
• Step 8:  Follow the uninstall wizard instructions until the Webguard application is fully removed.

To completely remove Bandoo from your computer, click here to download and install Spyhunter

What Is 0x00000050 Stop Error?

While running your Windows 7/Windows Server 2008 R2, your system suddenly stops responding out of complete randomness and you see an error message popping up which says something like this:

0x00000050 (parameter1, parameter2, parameter3, parameter4)

Solution

Error Causes

The stop error 0x00000050 signifies that there’s a PAGE_FAULT_IN_NONPAGED_AREA problem. If you’ve seen this error on different occasions then you will find the parameters in the message to be varying. That is because they are dependent on your PC’s configuration. Not all Stop errors "0x00000050” occur due to a single issue.

However, the most common problem which is encountered which results in the stop error popping up is due to a pool corruption occurring in the Srvnet.sys file.

This issue might be caused because of software incompatibility or a defective physical memory which resulted in requests for data for a hardware driver or service which was not found in the memory.

If you find the error occurring after you’ve installed a new application or a device driver then you should access Safe Mode and uninstall, disable or remove that application or driver.

Further Information and Manual Repair

In order to fix this issue, you should try booting your computer to the “Last Known-Good Configuration” as listed during startup.

For this you have to follow the below-mentioned steps:

1. Start your system.
2. When you see the message which says “For Troubleshooting And Advanced Startup Options For Windows, Press F8” hit F8 and proceed.
3. Use the up and down arrow keys to highlight “Last Known-Good Configuration” and hit enter (This method will only work if your system boot was not successfully carried out ever since you made any specific changes).
4. When you are starting the computer, press F12 and proceed with the PSA/32 Bit Diagnostics.
5. Do the following so that a clean boot can be performed:

• Go to the Start menu when the Windows 7 desktop shows up.
• On the search bar, type “msconfig” and hit search.
• Disable all the applications which are listed on the “Startup” tab.
• Now head over to the “Services” tab and mark the option which reads "Hide all Microsoft Service".
• Select the “Disable All Services” option.
• Apply the changes by clicking on “Apply” then restart your PC. You should now check the performance of your computer. If you don’t see a BSOD then you start re-enabling all the Services and Startup applications one by one until you finally figure out which one is causing the BSOD to appear.

6. Update your Windows with “Windows Updates”.

Error 118 - What is it?

Error 118 is a typical Google Chrome error. It pops up when Google Chrome fails to load websites like Facebook. It is usually displayed in the following format:

‘Error Message: Error 118 (net::ERR_CONNECTION_TIMED_OUT): The operation timed out.’

Solution

Error Causes

Error 118 may be triggered due to several reasons. This includes:

• Problems with DNS setting
• IP Address is filtering websites
• Cookies and invalid registry entries

Further Information and Manual Repair

To ensure smooth internet browsing on Google Chrome, it is advisable to repair the error 118. If error 118 is not resolved you will be unable to load and access your desired websites. To avoid inconvenience and resolve the issue immediately, try the methods suggested below. These are easy and effective do-it-yourself methods that require no technical skills.

Method 1 - Change Proxy Settings

If your IP address is filtering websites, then you might experience error 118 while using Google Chrome. When this is the error cause, then it is advisable to add a proxy for your PC. To change proxy settings and add a new proxy, simply click on Customize and Control Google Chrome menu. Now click the options button. Under the Google Chrome Options window select the Under the Hood tab. After that in the Network, section click the change proxy settings button. Check Show Suggestions for navigation errors and Use DNS pre-fetching to improve page load performance boxes. Now under Internet Properties, click LAN Settings. Under LAN settings you will see the Proxy Server box, check it, and enter your new proxy settings. Click OK to confirm and save settings. This will hopefully resolve the issue.

Method 2 - Change to Google DNS

When the error is related to DNS settings then try this method to resolve it. Simply set DNS to use Google DNS. Here’s how it’s done:

1. Go to the start menu, click Windows Control Panel, Network and Internet, and change adapter settings. Here you will see Local Area Connection.
2. Right click to select properties at the bottom.
3. Check Internet Protocol Version 4 and click properties.
4. Now check the ‘Obtain an IP address automatically’ box and also select the option that says ‘Use the following DNS server addresses’.
5. Change Preferred DNS to 8.8.4.4 and Alternate DNS server to 8.8.8.8 now click OK to confirm.

Method 3 - Remove the Bad Entries and Cookies Damaging the Registry

Bad entries and cookies saved in the registry can also trigger error 118. To fix the issue immediately download Restoro. This is PC Fixer with multiple utilities including a registry cleaner. The registry cleaner removes all bad entries and cookies in seconds and repairs the damaged registry. Click here to download Restoro and resolve error 118.

Recently, some users reported not being able to boot up their Windows 10 computers. And during the startup phase, at some time, the bootup sequence is halted with a Recovery error along with an error message saying, “Your PC/Device needs to be repaired” with an error code of 0x0000605. This kind of error message indicates that Windows was not able to verify the digital signature for the file as the signing certificate or it could be that it has expired. To resolve this error, you can follow the potential fixes given below and see if you stumble upon a fix that might work out for you.

Option 1 – Change the Date & Time settings in the BIOS

Some users reported that they were able to fix the error by changing the Date & Time settings in the BIOS. Upon checking, they saw that in their BIOS settings, the date was off several years. As a result, the incorrect date and time settings end up ticking the system into believing that the Windows build has expired long before the actual expiration date. You can check if the error pops up due to the same reasons by accessing the BIOS settings. To do so, you have to tap the Boot key that’s associated with your motherboard manufacturer during the initial startup phase. After that, you can search for a particular boot key online or you can also tap keys like F2, F4, F8, F10, F12, and the Delete key. Once you’re able to access the BIOS settings, locate the Date & time or anything similar, and then check if the date is correct or not. If not, you need to change the date to the actual date and then save the changes made and restart your computer and then check if the issue is now fixed or not. Just remember that if the actual date is past the expiration date of the build you have, you need to change it to an older date. If your Windows 10 PC is able to boot back up, you have to update it to a stable Windows build and then go back to the BIOS settings and change the date to the current one else you will definitely encounter Windows update errors in the future as well as security alerts.

Option 2 – Perform a clean install of a stable Windows 10 build

If every system boot fails accompanied by a BSOD error with error code 0x0000605 “A component of the operating system has expired” and you’ve already followed every instruction on option 1, then it’s most likely that your current Windows build has already expired. Remember that almost all the Windows 10 Insider Preview builds (98xx) are created along with an expiration date and when your computer reaches the expiration date, you won’t be able to boot your computer up. Note that the exact expiration date varies based on the build number. And prior to the expiration date, the operating system will start to display some error warnings telling you that the build will expire and urge you to update the most recent build available. And so once the computer reaches its expiration date, it will begin to reboot every three hours until it no longer boots up which is about 2 weeks approximately after the license has expired. Once the expiration date is up and your computer no longer boots up, you need to perform a clean install and then install the latest Windows 10 build to resolve the issue once and for all.

Lately, Microsoft has trying to fix Print Nightmare with various methods and patches. The last patch has seemingly fixed Print Nightmare but it has broken the Alt-tab key combination. It has been reported that the latest patch has broken famous key combinations for quickly switching from window to window. It seems that combination is not working or it is switching to desktop, even going to blank screen if switching from the full-screen game.

Fixing the issue

Luckily this issue is easily fixable. The first and easier fix for this issue is surprising to turn off the news and info widget, right-click on it and choose News and interests and then click on turn off. The second solution would be to uninstall the update. Go to Settings, then to Update & Security, and from there view Update History and remove the update.

SD memory cards have surfaced as standard cards for digital cameras and microSD as phone standard memory cards. Most people have and use at least one daily, so naturally copying files and even formatting SD cards is a natural thing to do, but what if you cannot copy files or format SD cards? Fear not because we had this issue and tried several things in order to overcome the problem and after some time here is a list of what can you do if you are facing this exact issue. The list is written from most simple solutions to more complex ones and it is advisable to follow it as presented. That being said, let's dive into solving the problem.

1. Remove Write Protection on SD card

First and in my experience the most usual thing preventing deleting, copying files, and formating SD card is due to write protection. Take an SD card out of the laptop, camera, or card reader and visually inspect it. On side of almost every SD card, there is a hardware lock switch and mark where it needs to be positioned in order to be locked. Even if the switch is positioned on unlocked state, switch it to locked and then back to unlocked. Sometimes this easy moving of switch can resolve some contact issues and the card will start working normally. Another type of lock that could be turned ON is a software one. If for any kind of reason data protection has been turned ON, you will need to turn it off in order to be able to format an SD card. In order to do this follow this guide:

1. Press ⊞ WINDOWS + R to open the Run dialog
2. In run dialog type in diskpart and press ENTER
3. Once diskpart is opened in command prompt type in: list disk and press ENTER
4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
5. After the SD card is selected type in: attributes disk clear read-only and press ENTER

This process will clear the software lock on the SD card, after following this method try to format the card again, if the problem still exists go to the next solution.

2. Format SD card using Command prompt

Command prompt is a great tool and can perform some commands that are not been able to be completed using file explorer or another tool inside Windows.

1. In the taskbar search box, search for cmd and select the Command prompt
2. On the right part select run as administrator
3. If needed click on YES on UAC prompt
4. Inside command prompt type in diskpart and press ENTER
5. type in list disk followed by ENTER
6. Select your SD card by locating its number in the list and typing select disk X, where is X SD cards number in list and press ENTER
7. Once SD card is selected type in format fs=ntfs quick and press ENTER

This should format SD card but if for reason even this step is provided as unproductive, go to the next solution.

3. Format your card with the Disk Management tool

1. Go into the taskbar and search for Disk Management and open it
2. Select SD card partition that you wish to format
3. Right-click on the partition and select format
4. After the format is done, enter the volume label, file system, and allocation unit size. Confirm with OK
5. Press OK again to confirm the formatting process.

If you have not managed to format your SD card even with this method go to the next solution.

4. Repartition card with Disk part

If all previous solutions have failed there is a chance that the SD card has bad sectors on it. If this is the case that we will need to partition cards in order to isolate bad sectors and use healthy ones.

1. Press ⊞ WINDOWS + R to open the Run dialog
2. In run dialog type in diskpart and press ENTER
3. Once diskpart is opened in command prompt type in: list disk and press ENTER
4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
5. Type in Clean and press ENTER
6. Type in Create partition primary and press ENTER
7. To select a new partition type select partition 1 followed by ENTER
8. Make partition active by typing active and pressing ENTER
9. Format the drive by typing format fs=ntfs label=SDCard quick followed with ENTER
10. Assign a letter to drive by typing assign letter=h followed with ENTER
11. Type exit to close Command prompt followed again by ENTER and open File Explorer to check if the drive is active

5. Try a dedicated SD card formating fool

If anything failed so far, one last thing you could do is to download and try a dedicated SD card formatting tool. One that I would recommend is SD Memory Card Formatter, which is free software make specifically for formatting SD memory cards.

The Boot Configuration Data or BCD files have the instructions required by the Windows operating system in order to properly boot the computer. So if you experience any trouble when you boot your computer, then it is possible that it is due to some misconfiguration or even corrupted Boot Configuration Data files. And if you also encounter an error saying,

“The boot configuration data store could not be opened”

while you try to carry out any command on the bcedit.exe, then you’ve come to the right place as this post will guide you on how you can fix this error in Windows 10. This kind of error could pop up if the system is not able to locate the specified file. It is also possible that the requested system device can’t be found or that the boot configuration data store could not be opened. In addition, when you open the System Configuration or MSConfig, you might notice that there is no Boot data, and according to the reports, is that when you try to dual boot the computer, the installer will replace the default bootloader.

Explanation

In case you don’t know, Windows’ earlier versions were stored in the “Boot.ini” file. You can find the entry in the EFI firmware boot manager of the EFI-based operating system which is located at EFIMicrosoftBootBootmgfw.efi. Whatever the cause of the error is, there are several suggestions you can check out to resolve the problem. You can try to set an entry option value in BCD or enable the Advanced options menu, as well as rebuild the BCD. Before you proceed with the troubleshooting options provided below, make sure that you boot your computer into the Advanced Recovery Mode first since that’s where you can find Command Prompt under the Advanced Options. In addition, you also have to suspend or disable BitLocker and Secure Boot on your PC.

Option 1 – Try to set an entry option value in BCD

• Once you’re in the Advanced Options, select Command Prompt.
• Next, execute this command to set an entry point: bcdedit /set {current} Description "TheNameYouWant"
• After the command has been executed, it will enable the system to trust a version of Windows that is not trusted by default. This should fix the problem, if not, follow the next given options below.

Option 2 – Try to specify the BCD file

• In the elevated Command Prompt, execute this command: bcdedit /store c:BootBCD
• Once done, the command will give you a list of options and then execute this next command: bcdedit /store c:BootBCD /set bootmenupolicy legacy
• After that, restart your computer and select your Windows and then tap the F8 key right away.

Note: When you select the legacy option, the Advanced Options menu will be available during the computer boot up and then you can select into which operating system you can boot your computer into.

Option 3 – Try to rebuild the BCD files

The first thing you can do to resolve the issue is to Rebuild Boot Configuration Data or BCD files.

• You can start by booting into the installation environment for Windows 10 from an installation media.
• After that, click on Repair your computer and on the blue screen, select Troubleshoot and then select the Advanced options menu.
• From there, select Command Prompt and once you open it, enter each one of the commands given below by sequence.
  • bootrec /FixMbr
  • bootrec /FixBoot
  • bootrec /ScanOS
  • bootrec /RebuildBcd
• Once you’re done executing the commands given above, type “exit” to close the Command Prompt window and then restart your computer and see if it fixed error code 0xc000014c.

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.