SYSTEM_THREAD_EXCEPTION_NOT_HANDLED CMUSBDAC.sys

Recently, a number of Windows 10 users reported an issue wherein they try to print from their PCs but were unable to and got an error message instead that states, “Port in use, please wait”. However, no matter how long they waited, nothing changed and they were still unable to print from their computers. On the other hand, when some of the users attempted to print wirelessly from their mobile devices, the printing continues which indicates that there is some issue between the computer and the printer. So if you are one of the users who are currently facing this problem, then this post should help. To fix this issue with your Printer, here are some possible fixes you can try that might work.

Option 1 – Run the Printer Troubleshooter

The first thing you can do to fix the “Port in use, please wait” error is to run the Printer Troubleshooter. This built-in troubleshooter in Windows 10 can help you fix most print issues. It checks if you have the latest printer drivers and then tries to fix and update them automatically. Aside from that, it also checks if you have connectivity issues or if the Print Spooler and the required Services are running fine. To run it, follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msdt.exe /id PrinterDiagnostic” in the field and click OK or hit Enter to open the Printer Troubleshooter.
• Then click the Next button and follow the next on-screen instructions to fix the issue with the printer.

Option 2 – Try updating the Printer drivers

You might also want to try updating your printer drivers. All you have to do is locate the USB Composite Device. For complete details, follow the steps below.

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the USB Composite Device option and right-click on it, and select the Update Driver from the options.
• Restart your PC and then click the “Search automatically for updated driver software” option.

Note: You also have the option to download the latest version of your Printer from the manufacturer’s website.

Option 3 – Try selecting the correct port for your Printer

If the first two options given above didn’t work, then maybe it’s time to select a correct port for your printer since the wrong port has been selected which is why you’re getting the “Port in use, please wait” error.

• Open “Devices and Printers” from the Start search.
• Next, look for your printer from the list of devices and right-click on it, and then select Printer Properties.
• Now go to the Ports tab under the newly opened Properties window and make sure that the port type matches the connection on the list of ports currently in use.

Note: If your printer is using a USB connection then the port should have a USB or DOT 4 in its description but if your printer is using a network connection then it should have the following description:

• WSD
• Network
• IP

And if you notice that there are several listings for the same type of port, you have to change the selection to a different one and then click the OK button to save the changes made.

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.

What is Error Code 100?

Error Code 100?? Whenever a Setup error contains error codes in the message, this indicates what the setup was operating on, let’s say copying files. The text in the error message will determine whether that it is fatal or not. An error code 100 is a system error that is displayed as ‘ERROR_TOO_MANY_SEMAPHORES’ or as a value 0x64. This error means that the system ‘cannot create another system semaphore.’ A semaphore is used in controlling access to parallel programming or a multi-user platform through multiple processes. This error can prevent certain features of your Windows to perform properly, like trying to get a print, copying files, deleting files, or any other routine computer activities.

Solution

Error Causes

Error code 100 can affect a wide range of activities that you normally perform on your PC. This error can occur for a number of reasons, of which some of the common ones include:

• When the Microsoft SQL Server fails to start the service
• When the account used for starting AOS does not match the database in SQL Server
• When the AOS licenses have exceeded their limit
• When the SQL Server database is incorrectly case sensitive

Though these are the common causes for error code 100, there can be other ways through which this error can occur. To find out the specific cause for error code 100, follow these steps:

• Go to Start and select All Programs. Go to Administrative Tools and click Even Viewer
• Click Application in Even Viewer
• Locate the error message in the right pane by scrolling down
• Click on the error message and see if the message applies to the error code.

Further Information and Manual Repair

In order to manually repair this error, you will have to work with your Network Administrator as they will have security privileges to take the steps. However, there are more than one ways to resolve this issue, for instance:

1. Starting SQL Server Service
   • A likely cause of an error code 100 can be that your SQL Server service is not started. To activate it, follow these steps:
   • Got to Start and Click on All Programs, go to Administrative Tools and click on Services
   • Find SQL/MSSQLServer service
   • Right Click on it and click Start to activate the service
2. Network Resolve

If you are connected to a network, then you can work with your network administrator to fix error code 100. Follow these steps to resolve this error:

• Got to Start and then Run. Type dcomcnfg and press Enter
• Locate Default Security and click it
• Find Default Access Permissions and click Edit Default
• You should locate System and Interactive, listed in the Allow Access. If they’re not listing, you can add them by clicking Add
• Find the local computer in the list and click on Allow Access
• Click Ok on the following three steps
• Log off the computer and log in again.

nslookup is a command-line tool that helps in finding the DNS records of a website. It sends a name server query to the DNS and obtains the corresponding IP address. Aside from that, it can also perform some complex functionality such as finding details about FTP server, Mail server and many more but most of them are used by administrators. The best thing about nslookup is that it queries the DNS server directly and it does not rely on the cache. On the other hand, there is another tool called PING that is used to verify connectivity. PING sends a packet of information to the IP address or Domain and gets back a response in the form of packets. So if everything goes well, all packets are received but if not, it will help you find out where the delay in the network exactly is. However, the ping command does not always attempt a DNS lookup which means that it might be using the DNS cache and use the IP address available in that table. Although both nslookup and PING help you in identifying the host or IP address, however, they don’t always work and sometimes fail. So if your nslookup works but ping fails on your Windows 10 PC when querying the IP address of a website then it could be caused by many reasons. It could be that the nslookup queries work for you but when you try to use PING, it fails. For instance, if you open the abc.com website, here’s how it will look like:

nslookup xyz.com Server: dns.company.com Address: 192.168.1.38 C:> ping xyz.com Ping request could not find host xyz.com. Please check the name and try again.

The domain is converted into an IP address and then data is sent to that IP address when you use PING. So when a reply comes back it means that the data is going back and forth to that domain without any problem. However, if the DNS fails to resolve the IP address of the website or if your PC does not attempt a DNS lookup, you will receive a similar error message that says, “Could not find host” and so on. To resolve this issue, here are some options that might help.

Option 1 – Reset Winsock, TCP/IP & Flush DNS

Resetting Winsock, TCP/IP, and flushing DNS might help you resolve the issue with nslookup and PING. To do so, follow these steps:

• Right-click on the Start button and click on Command Prompt (administrator) so you can pull up an elevated Command Prompt.
• After that, execute each one of the commands listed below. And after you typed in one after the other, you have to hit Enter.

1. netsh winsock reset – type in this command to reset Winsock
2. netsh int ip reset resettcpip.txt – type in this command to reset TCP/IP
3. ipconfig /flushdns – type in this command to flush the DNS cache

• Next, restart your PC and check if the problem’s fixed.

Option 2 – Force Windows to do a DNS lookup using FQDN

• Go to Settings > Network & Internet > Status > Change adapter options.
• From there, right-click on the network and select Properties.
• Next, in case you’re using IPv6, from the list of connections available in the list, select Internet Protocol Version 4.
• Then click on Properties and click Advanced.
• After that, switch to the DNS tab and select “Append these DNS suffixes (in order)” and click on the Add button and then add “.” as a suffix so that each time you query using PING and another tool, it will add a “.” at the end and will force the lookup.

Option 3 – Make sure that there is only one default gateway

If your computer has more than one NIC connected and there are multiple default gateways, then it will most likely create confusion which is why you need to remove the default gateway from the configuration of all NICs and make sure that there is only one default gateway.

Option 4 – Use the Google Public DNS

You might want to change your DNS to Google Public DNS as it could also help you in fixing the nslookup and PING issues. To do so, follow the steps below.

• The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
• Next, click on the “Change Adapter Settings” option.
• After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
• Right-click on your network connection and click on Properties.
• Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
• After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
• Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.

Option 5 – Check the Windows Host file

You can also try to cross-check the Windows Hosts file to find out if the website you are trying to open has been blocked, because if it is, then it’s no wonder why PING fails even when nslookup works. There are instances when some third-party application modifies the file and adds some websites to the blocklists. So if the website is indeed blocked, you need to remove it from the list.

Option 6 – 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 might help you in fixing the issue with nslookup and PING.

Option 7 – Reinstall the Network Adapter Drivers

• Tap the Win + R keys to launch the Run window and then type in the “msc” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• Then right-click on each one of the Network drivers and select “Uninstall device”.
• Restart your PC.

Error 501 - What is it?

Error 501 is an error code that sometimes may occur while you are using Internet Explorer on your Windows PC. The error message is displayed as:

'Error 501: Not implemented or not supported.'

Solution

Error Causes

It is difficult to narrow down the ultimate cause of error 501. This is because this error code can be triggered by multiple reasons such as:

• Third-party confliction or due to an incorrect HTTP 1.1 setting
• Improper program installation
• Changes in the “LocalAccountTokenFilterPolicy” registry key
• Corrupted Registry Database

Further Information and Manual Repair

The occurrence of this error regardless of what the cause is may cause a lot of inconvenience to you. And if not fixed on the time it can lead to system failure too. To repair the error 501, identifying the cause for the error really helps. By identifying the cause, you can easily select the most suitable solution to fix it.

Let us walk you through the solutions to fix error 501 timely:

Cause: Third-party conflicts or due to an incorrect HTTP 1.1 setting

Solution: If the above cause is the reason for error 501, this means the Local Policy Rights Settings have been altered. And because of that, Windows is not running your desired program. To solve this error simply log on to Windows as an administrator. Then run local computer policy snap-in. Open it and click on the computer configuration. Here you will see the Windows settings option. Click on it and then open security settings, local policies, and click on properties. Now in the add users section select the user which you want to add to the policy and save by pressing OK. After you’ve made changes, now try using internet explorer again. If this is the cause for the error pop, the error will not occur. If it still occurs then this means there is some other underlying cause for the error. Read on to find out.

Cause: Improper Program Installation

Solution: Error 501 may also occur due to improper program installation. The best way to resolve it is to uninstall recently installed programs.

Cause: Changes in the “LocalAccountTokenFilterPolicy” registry key

Solution: Sometimes during installation registry keys also get damaged or changed. If changes in the LocalAccountTokenFilterPolicy” registry key is the issue, then you need to alter the registry key ‘LocalAccountTokenFilterPolicy settings and its value. This key inside the registry database allows Windows to control the various access options that you have. However, due to wrong settings, it denies access and shows error 501 when you open Internet Explorer. To alter registry key settings can be tricky and complex if you are not a computer programmer. In such as scenario it is advisable to download Restoro. This is a user-friendly and multi-functional repair tool embedded with a powerful register cleaner. In addition to this, it also functions as anti-virus and a system optimizer.

Restoro Solution

Restoro is simple and easy to use. To operate this tool on your PC and to reset registry settings you don’t need any technical expertise or sound knowledge. Its smooth navigation makes it easy for users to scan and repair errors like 501 due to registry misconfiguration in seconds.  With this helper, you don’t have to modify Windows registry settings manually. It will do it automatically. Furthermore, if Error 501 is triggered by a corrupted registry database, you can run it to repair this issue too. It cleans and wipes out all the unnecessary and obsolete files that could be corrupting your registry. This includes junk files, internet history, and invalid registry entries. It clears up your hard disk space and repairs your corrupted registry. If your PC’s registry is damaged due to malicious software like viruses and malware, then it uses advanced antivirus to remove them from your system. It has a value-adding backup feature that enables you to create a backup of your files for data safety and recovery in case of loss during repair. Restoro is compatible with all Windows versions.

Starting with Restoro

Here are 3 simple steps to get started:

1. Click here to download Restoro.
2. Once the installation is complete, run it to scan for errors
3. After scanning the errors, simply click repair to resolve the issues including the error code 501.

Along with fixing error code 501 triggered by registry damage, it also repairs all other PC-related issues. It helps maintain a stable and error-free system for the longest time.

Hello everyone, last time we were talking about disk cleanup and its benefits, but as you need to keep your System clean you should also clean and keep your hardware clean as well. Many system issues could be traced and could happen due to dirty PC. In this article, we will give you tips on how to perform safely cleaning on your computer and hopefully point good sides to it so you can develop a healthy habit of regularly cleaning it and keeping it tidy. Keeping your PC clean is not rocket science and you can do it with things you already and probably have in your house. One thing that I would recommend tho to purchase is antistatic gloves since they could prevent any kind of electrostatic discharges thus protecting your electric components. If you have the option to disconnect your PC and get it outdoors, I would highly recommend this approach since all the dust will be dusted outside and not in the room where your computer is. If you can not it is still ok, but since some portion of dust will be set in the room, you might need to dust your room after cleaning your computer.

Cleaning outside case & redusting inside

The first thing after disconnecting your computer is to dust it from outside, here you will need a vacuum cleaner and a brush, gently brush outside dust from your casing and vacuum it with your vacuum cleaner. You can use dustcloth for larger parts but use the brush for fans and connectors. After you have done cleaning the outside part, open the side of your computer casing, put on your antistatic gloves, and get a fine and soft brush, repeat dusting and vacuuming of the inner parts of your computer. If your computer is not regularly been cleaned this part will take a little longer since there would be excess dust inside and it will take a longer time to vacuum it all but keep going until you are left with no dirt.

Cleaning it inside

Fans are troublesome to clean since they will rotate when brushed and that could make you miss certain sports, in order to battle this get a tape and stick the fan into one position, brush areas that you can reach, then unstick it, rotate the head, stick it again in another position and dust off remaining areas which you could not reach before. If your computer is very dirty and some hard dirt is at bottom of the connectors, disconnect desired component and clean the connection properly. plug it back in immediately after cleaning to avoid connecting it somewhere else. Harder stains that could not be dusted could be cleaned with little alcohol. Get your dustcloth just a little wet with alcohol, just a corner, and gently wipe out sticky dust or spills if they are present. Leave it 10 minutes for alcohol to evaporate before plugging it back into an electric socket.

Thermal paste and cable management

If you have money and expertise, every 2 years would be a good idea to change the thermal paste on your processor, all you need to do is buy it from your local computer store online, remove the CPU fan clean the CPU and bottom of the fan and apply new thermal paste, place fan back and lock it. If you do not have expertise in this area, call someone who has to show you how it is done. When cleaning it would be a good idea if you do not have any cable management to do it now, nice and tidy cables not only look good, they also improve your air circulation inside your casing making your computer cooling better. once you are done with it, close back the casing side and plug it back in the wall.

Peripherals

When you are cleaning your computer, do yourself a favor and clean your keyboard, mouse, and screen as well. the keyboard can be quickly cleaned with compressed air in the can and screen and mouse with dustcloth. That's it, remember, keep your PC clean and tidy and enjoy the benefits of non-hardware malfunctions caused by dirt and dust.

Windows 10 and Windows 11 have automatic dynamic screen brightness depending on the surrounding light inside the room. Please take note that this option is available only on devices with build-in screens like laptops, tablets, and all in one desktop PC. If you are connected with your PC via an external monitor you will not have these settings available and probably feature is not even working.

Some computers will also allow automatic brightness changes also on what is displayed on the screen. This option is meant to save battery life on devices. Microsoft calls this automatic brightness feature Content adaptive brightness control. In order to change this setting, we will go to settings inside Windows.

Disabling automatic brightness inside Windows

Open Settings inside Windows, in Windows 11 press WINDOWS + I to open settings, then click on the system in the sidebar and then go to Display. Click on the small arrow beside the Brightness slider in order to expand a small menu and then uncheck Help improve battery by optimizing the content show and brightness. If you see Change brightness automatically when lighting changes, uncheck that as well. Close the settings and you are good to go, now brightness will always be as set in settings.

Inside Windows 10, go to Settings and then go to System and then in Display under the Brightness and Color section look below and locate the box that says Automatically adjust contrast based on the displayed content to help improve battery and uncheck it, if the box below with text Change brightness automatically when lighting changes exists, uncheck it as well. Close settings and you are done.

Gaming can be sometimes a very cheap hobby, sometimes can be really expensive. It really depends on your preferences or gaming habits. So for all of you game spenders, we have compiled a little list of WEB sites where you can find games cheap. Provided sites are checked ones and not scam. You can purchase without concern. Also, note that some of these sites will require you to create an account in order to be able to make a purchase.

List of WEB sites for cheap purchases

Is There Any Deal

https://isthereanydeal.com/ Is there any deal really behaves as it sounds, it is basically a search engine tailored to find existing deals on required games. Type in the desired game and see if anywhere you can find a deal on it. The site also features wait for better price options as well as the price history of the game and the trend of its sales.

Cheap Shark

https://www.cheapshark.com/ On cheap shark by typing game name, you will get its listing on different online retailers, like Steam, EPIC, etc. so you can compare prices among them and pick the best deal. Site packs are also the cheapest ever feature so you can check the lowest price ever on the wished title and you can get alerts and notifications on prices.

Humble Bundle

https://www.humblebundle.com/ Humble bundle got famous for its pay what you want approach due to its origins where it was selling games and donate money to charities. Even today they go by this logic once they decide to place great games on sale for charity purposes and you can donate any amount you wish (there is the minimum amount, but it is very cheap). And regular cheap bundles make this site one of the best out there.

Fanatical

https://www.fanatical.com/ Fanatical is a site that will offer you to get titles in a bundle with a discount, the good stuff is that you can create your own bundle and get a discount on bulk purchases. And the site also offers flash deals and holds sales where you can buy stuff cheaper.

Slick Deals

https://slickdeals.net/deals/games/ If you are looking for the best deals on daily basis slick deals is the site for you. We could not found a better website that offers cheaper deals on a daily basis and you can subscribe to get notified in email about daily discounts.

Green Man Gaming

https://www.greenmangaming.com/ Green Man Gaming is one of the best stores and game discount sites out there, it might not be the cheapest but one very important thing about it is that keys for Stream and Xbox come directly from the game publisher so you can rest assured that they are all 100% legal and do not come from some third party benefits and resellers. And that's it for now. We hope to see you again on our site for more articles and error fixing tips.

The new thing from Mozilla is not a browser, it is a VPN!

Besides Firefox, Mozilla offers now Firefox Relay, an app helping you to mask your email and phone number, and a new Mozilla VPN.

Mozilla has recently announced a new subscription model that will let you use all products together for $6.99 per month. Although this is a little more expensive than the competition that goes around for $5 per month note that with this subscription you are having access to all services, not just VPN.

VPN will not only hide your IP address but will also make sure websites cannot access your real location and it encrypts all of your network activity. Relay will give you protection against spam, serving as a shield for your email and limiting spammers from access to your real email address and phone number. With Mozilla subscription will let you use both services.

A few days ago we celebrated fixing of months-long PrintNightmare vulnerability by Microsoft, sadly a new bug and issue have been found. Firstly discovered Microsoft stated:

A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

A few days ago, Microsoft officially released a patch that was supposed to finally fix it. As you might recall this vulnerability was present for quite some time, Microsoft's solution after a long struggle was to elevate certain privileges to administrator account only and remove user accounts from managing printers. It complicated things a little bit but it was stated payoff was worth it. The new issue now is that on a system that already had accounts created and set, old accounts still can hijack the system, patch issues address only accounts that are created after the fix is administrated, old ones can still do whatever they want. Once again of course Microsoft has stated that until it is again resolved you should again disable the Print Spooler service as a temporary workaround.