Headphones are not visible in playback devices

Same as in Windows 10, Windows 11 also features a lock screen. IN this lock screen by default, you will see a clock and date above the standard Windows 11 background. Not all users will be happy with this choice but do not worry, you can choose and customize your lock screen to better suit your idea of it.

To personalize the lock screen do:

1. Right-click on Desktop and select Personalize
2. Click on the lock screen
3. Choose one of three options and customize it

   • Personalize Your Lock Screen

     this option will let you set a custom image or slideshow for your lock screen. Choose either one that best suits you. Under selecting picture or pictures for the slide show you can uncheck the option to see tips, tricks, and facts on your lock screen.

   • Lock screen status

     when clicking on this option you can select the application widget that you wish to be shown on the lock screen like weather, mail, calendar, etc. Choose if you would like one by clicking on it.

   • Show the lock screen background picture on the sign-in screen

     as self-explanatory this switch will enable or disable chosen lock screen wallpaper on your login credentials screen.
4. Close settings

All settings will be automatically saved and applied and when you wish to lock the screen easiest way is to press ⊞ WINDOWS + L shortcut on your keyboard.

If you have encountered the “Windows Cannot Find a System Image on This Computer” error while you are trying to restore a system image, then read on as this post will guide you in resolving this problem. A system image is basically a backup of your whole data in the system. For instance, it can be the backup data of your hard disk or the whole hard disk itself, or one of the volumes. This is really useful in some cases like when you are not able to get back into your system for some reason or when your system has been corrupted. In such cases, you can utilize this feature and get going safe and sound. However, not all things go the way as expected like when you make a system image of a drive for instance, or use that backup to restore data and you suddenly encounter the “Windows Cannot Find a System Image on This Computer” error. This kind of error occurs due to a number of reasons but worry not for your data is safe and you can fix this error easily. This error is most likely triggered by changing the name of the “WindowsImageBackup” folder. Renaming this folder will certainly be an issue since it is the one that stores all your data. Aside from renaming the WindowsImageBackup folder, renaming the sub-folders can also cause this error which means that renaming the sub-folders of the WindowsImageBackup folder can trigger the error. To fix this error, here are some suggestions that might help:

Option 1 – Try putting the WindowsImageBackup folder in the Root directory

Windows will have issues finding the WindowsImageBackup folder if it isn’t in the root directory of the drive so if it is not there, the “Windows Cannot Find a System Image on This Computer” error will pop up. When a folder is in a root directory, it means that it shouldn’t be stored within a folder but in the main directory instead.  Thus, you need to put the WindowsImageBackup folder in the root directory to fix the error.

Option 2 – Don’t add any sub-folders in the WindowsImageBackup folder

Another cause of the error is when you add sub-folders in the WindowsImage Backup folder. Adding any sub-folders in this folder will only trigger the error so you should leave the folder as it is and you must not make any modifications to it. So if you have added sub-folders in it, make sure to remove them right away.

Option 3 – Make sure that there is one system image per USB drive

The error can also appear if you’ve stored multiple images inside a single USB drive as it could confuse Windows and will trigger the “Windows Cannot Find a System Image on This Computer” error. Note that storing system images of different volumes of your hard disk in a single USB will prevent you from restoring your data.

Option 4 – Try renaming the System Image folder

If you’ve just changed the name of the System Image folder after you store it on a USB stick or other external device, then it’s no wonder why you’re getting the “Windows Cannot Find a System Image on This Computer” error. Windows search for the default name, “WindowsImage Backup” folder when restoring your data so if it is not able to find it, it throws up this error instead. To fix the error, you need to change the folder back to its default name which is “WindowsImageBackup”.

Option 5 – Check the WindowsImageBackup sub-folders

As mentioned earlier, renaming sub-folders in the WindowsImageBackup folder can trigger the error so if you have renamed sub-folders in this folder, you need to change them back to their default names so that you can restore your data peacefully.

Driver Verifier is a built-in tool in Windows 10 that monitors device drivers on your computer, if it detects issues with drivers, it will attempt to fix the issue. If you are encountering Blue Screen for a Driver and after running Driver Verifier you get another with message DRIVER_VERIFIER_DETECTED_VIOLATION ten follow this article step by step in order to solve it. There is a chance that you will maybe even have to do this in safe mode, if that is your case, login into safe mode and proceed, otherwise proceed normally.

1. Update Device Drivers

   the most common issue with the blue screen is old Drivers, in most cases, graphical drivers, update all Drivers with the latest versions and see if this will resolve the issue.

2. Stop or uninstall Virtualization software

   Virtua machine software is a great way to have a safe environment and to experiment while preserving your Windows installation intact, however sometimes due to the nature of these applications they can be a case for blue screen errors. Stop virtualization software to see if it will remove the issue. If that is the case, try another virtualization application

3. Disable Driver Verifier

   Press ⊞ WINDOWS + X to open the secret menu Click on Command Prompt (admin) Inside command prompt type: verifier and press ENTER Select the Delete existing settings radio button Click Finish Reboot your computer

4. Reset Driver Verifier

   Press ⊞ WINDOWS + X to open the secret menu Click on Command Prompt (admin) Inside command prompt type: verifier /reset and press ENTER Reboot your computer

5. Use system restore

   Rollback Windows to the previous state where everything was working fine.

Error code 0x8007007b - What is it?

Error code 0x8007007b will present itself when Windows users are trying to activate Windows. You may try to activate it through the update and security option, but it is likely that you will receive the same error code. Error code 0x8007007b may be presented when Windows 7 and Windows 8.1 users try to upgrade and activate Windows 10 on their computer.

Common symptoms include:

• An error message will display that says Windows cannot be activated. The KMS host cannot be located in the DNS, please have the system administrator verify that the KMS is published correctly in DNS.
• Error 0x8007007b will be displayed, stating that the file or directory name or the volume label syntax is not correct.

Solution

Error Causes

There are multiple causes for the user to see this error code, including if a user is using volume-licensed media while installing a number of various Windows operating systems. This error may also be caused because the activation wizard cannot connect to a KMS host computer. It is likely that if the user has a volume-licensed form of media, they were likely given a MAK (multiple activation keys).

Further Information and Manual Repair

There are several ways to go about repairing error code 0x8007007b. It is important to try all of the methods, but if it is too difficult or you do not know what you are doing, please do contact a Windows repair technician. They will likely be able to fix the problem with ease.

Method One: Instead of KMS activation, use a Multiple Key Activation

When KMS activation is not used, and when there is not a KMS server, the product key type should then be changed to a MAK. For MSDN (Microsoft Developer Network) or TechNet, the SKUs that are listed on the media are generally volume-licensed media, and that means that the product key that is supplied is a Multiple Activation Key.

To change the KMS to a MAK, click Start, All Programs, Accessories, and then right-click on Command Prompt. Click Run as Administrator. If prompted for a password or confirmation, enter it now.

When the command prompt opens, type in the following command, and press enter after:

slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx (these x's are representative of the MAK product key).

Method Two

While on the desktop, press the Windows key and R. The Run window should appear, and then you should enter the following command: Slui 3. Press Enter and then wait for the window to appear. This window will ask for the operating system activation product key. Enter the product key and then press the Activate button. Reboot the computer. Now the Error Code 0x8007007b should be gone.

Method Three

Open the Command Prompt with access as administrator as mentioned previously. Enter the following command: sfc /scannow. The command will then complete its task. This will take a good bit of time, so leave the computer to do its work. The sfc must finish the scan. When the scan has finished, reboot the computer. Now you can check for activation. The error code should be gone.

Method Four: When the client can't locate a KMS host on the network to complete activation

This method for correction should be used when the network does have a KMS host computer setup, and the client is not able to locate the KMS host on the network to complete activation.

To verify that the computer does in fact have the KMS host installed. Click Start, All Programs, Accessories, and then right-click on Command Prompt. Run as administrator. If you are now prompted to enter a password or confirmation, do so. When the command prompt box comes up, type in the following command, and then press Enter: nxlookup -type=all_vlmcs._tcp>kms.txt

The command will generate a file, open this KMS file. The file will contain one or more entries. As a default, the KMS host server will dynamically register a DNS SRV server evidence once every 24 hours. In order to check the registry to ensure that this is happening, follow these steps:

• Click Start, type in regedit, and then press Enter.
• Locate the key HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSL and then click on it.
• The DisableDnsPublishing subkey should be present and have a value of 1. If it is missing, create a DWORD value by right clicking DisableDnsPublishing, click Modify, in the Value Data box type in 0, and then click Okay.

Method Five: Use An Automated Tool

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

This post will guide you in what to do if you are trying to share the internet connection from your Android smartphone to your Windows 10 computer but USB tethering is not working. Although you can always connect your Android phone to your computer using a USB cable, you still won’t be able to access the internet. However, if you’ve already enabled the USB tethering option in your smartphone, you should be able to access the internet but if you still can’t then you can fix this issue by reading this post. There are several potential fixes you can check out to fix the USB tethering issue. You can try running both the Internet Connections and Network Adapter troubleshooters or try installing the USB RNDIS adapter or disable any unnecessary network adapters.

Option 1 – Try to run the Internet Connections and Network Adapter troubleshooter

There are various built-in troubleshooters in Windows 10 that can help fix system issues. Since you are dealing with an internet connection problem, you can try running both the Internet Connections and the Network Adapter troubleshooters. To run them, follow these steps:

• Go to Settings > Update & security > Troubleshoot.
• From there, you can select the Internet Connections troubleshooter.
• Click on the Run troubleshooter button to troubleshoot the problem.
• Wait until the troubleshooter is done identifying and fixing the problem automatically.
• Then follow the next on-screen instructions that may appear.
• Once it’s done, check if the USB tethering issue is now fixed.

Note: You can also try to run the Network Adapter troubleshooter. It is also located under the Troubleshoot section. Just scroll down until you see it and then run it.

Option 2 – Try installing or updating the USB RNDIS adapter

RNDIS or Remote Network Driver Interface Specification can also help you resolve the USB tethering problem. If the pre-installed driver does not help you in connecting to the internet, then you can try installing the USB RNDIS driver that is, if it’s not installed yet. If it is already installed, you can try to update it instead.

• Tap the Win + R keys to open Run and type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• Next, expand the Network adapters section and look for the Remote NDIS based Internet Sharing Device. But if you are using a Samsung smartphone, you might see “Samsung” instead of under Network adapters.
• Right-click on it and then select the “Update driver” option.
• Then select the “Browse my computer for driver software” option.
• After that, select the “Let me pick from a list of available drivers on my computer” option.
• Now uncheck the checkbox for “Show compatible hardware”.
• From the given list on your left-hand side, look for Microsoft and then select the Remote NDIS based Internet Sharing Device on your right-hand side.
• Click on Next. A new popup will appear where you have to click on Yes. This will install the driver.
• Now click on the Close button and restart your computer.

Option 3 – Try disabling any unnecessary network adapters/connections

Assuming that your Ethernet connection is showing ping loss which indicates that the internet is not stable. In such time, if you use the USB tethering functionality, you won’t be able to access the internet connection from your smartphone. The internet connection will be frequently disconnected since your computer gives priority to the Ethernet connection. Thus, you have to disable the Ethernet connection temporarily.

• Right-click the network icon on your Taskbar and select the option “Network and Sharing Center”.
• After that, click the network connection. And then click the Disable button from the status box that opens.
• After that, check if you can now connect to the internet or not.

In case you don’t know, Windows now comes with an all-new Light Mode theme which gives a light accent color to the Taskbar, Start, and Notification Area. Aside from that, it also brings new improvements and features. This new theme is somewhere between dark and completely white and in this post, you will be guided on how you can enable this new feature in your Windows 10 computer. Although the Light Mode sure looks stunning and a lot of users love it, it actually switches all the apps plus the Taskbar and Start Menu to the light mode which was not the case before. In addition, the icons in the system tray area, as well as the notification center, are also inverted. To resolve that, there are several ways you can customize the light mode theme as well as activate it in the Windows 10 v1903. How? Refer to each one of the options given below.

Option 1 – Via Theme settings

Windows 10 brought a new theme called “Windows (Light)” which will enable the light mode automatically and will set the accent colors to automatic. This will also apply the new Windows 10 wallpaper on your desktop. To enable Windows (Light), all you have to do is right-click on the desktop and select Themes from the left menu. After that, select the Windows (Light) option under the Change Themes section. This will apply to the Windows (Light) mode.

Option 2 – Via Color settings

The second and more customizable way to activate the light mode is via Settings. Aside from the Light and Dark, Windows also introduced a Custom color option which allows you to decide the default Windows and App mode independently. To enable Light mode via Settings, refer to the steps below.

• First, open Settings and go to Personalization.
• After that, select “Colours” from the left menu.
• Next, select Light under the “Choose your color” section to activate the light mode in Windows 10. This will activate light mode all over your computer.

Note: If after activating light mode, you find that you don’t like it and you want to keep things as they were before (Light App Mode and Dark Windows Mode), you can achieve that using the Custom option. All you have to do is select Custom from the drop-down menu to decide the default Windows and app mode independently. After that, select light under the default app mode and dark under the default Windows mode so that you can keep things as they were before the update. On the other hand, you can also try the opposite version of the light Windows mode and Dark app mode since Windows increased the level of customizability which allows users to use an option of a completely light mode.

Strangely enough, Windows 11 does not feature any typical icon on its desktop when installed. No My PC, no Recycle Bin, nothing, just plain and clean wallpaper. Personally, I like this clean look and feel but of course, there are a lot of users that are used to have some system-related icons on their desktop for easy access. Do not sweat, we will turn them back on with ease. The best part is that you can choose which one would you like. So let’s dive right into it and get the icons back for the old Windows feel and look.

Showing selected Icons desktop

1. Right-click on Desktop and select Personalize
2. Select Themes from the list of personalization items
3. Inside themes scroll down and click on Desktop Icon Settings
4. Desktop Icon Settings will open and inside it, place checkmarks beside icons that you would like to appear on the desktop and click OK
5. Close settings

As always settings and choices will be automatically applied and icons will appear right away on the desktop.

Qualcomm Atheros Qca61x4a Driver is a software driver used in WI FI communication between OS and device itself. When this driver stops working usually it means loss of connection and no internet available. This error knows to comes frequently and repeat itself over long periods of time which makes it quite annoying. If you are one of the unlucky users of Windows who get this error please keep reading in order to eliminate it and continue working on your computer normally.

1. Disable & Enable the Qualcomm Adapter Driver

   Press ⊞ WINDOWS + X to open the secret menu, click on the device manager. In device manager expand network adapters. Right-click on Qualcomm Atheros Qca61x4a wireless network adapter and click on disable Right-click on Qualcomm Atheros Qca61x4a wireless network adapter and click on enable

2. Rollback the Qualcomm Adapter driver

   Press ⊞ WINDOWS + X to open the secret menu, click on the device manager. In device manager expand network adapters. Right-click on Qualcomm Atheros Qca61x4a wireless network adapter and click on properties Under properties, window click on Driver tab and left-click on Roll Back driver (if the option is greyed there is no previous driver, follow next step) Choose your reason and click on OK

3. Update Qualcomm Atheros driver to the latest version

   Press ⊞ WINDOWS + X to open the secret menu, click on the device manager. In device manager expand network adapters. Right-click on Qualcomm Atheros Qca61x4a wireless network adapter and click on Update Driver

4. Install the new driver in compatibility mode

   Right-click on the installer package and choose properties Go to the compatibility tab Choose compatibility settings and install.

DRIVER_IRQL_NOT_LESS_OR_EQUAL will cause your computer to go to the blue screen of death but do not worry there are solutions around this and we are here to instruct you on how to solve this.

1.  Uninstall and install network drivers

   DRIVER_IRQL_NOT_LESS_OR_EQUAL is most commonly tied to bad network drivers, whatever that be a corruption of the driver files or their incompatibility. So first thing is to check if this is the case. Press ⊞ WINDOWS + X to open the hidden menu in Windows and click on Device Manager. In the Device Manager expand Network adapters, choose adapter, right-click on it and choose Uninstall. Install latest driver or reboot so Windows will install the driver automatically

2. Update driver

   If you do not want to reinstall the driver or you are unable to for whatever reason updating the driver might do the trick. To update driver: Press ⊞ WINDOWS + X to open the hidden menu in Windows and click on Device Manager. In the Device Manager expand Network adapters, choose adapter, right-click on it and choose Update Driver.

3. Fix via Command prompt

   If both of the beforementioned solutions fail, try running the command prompt and fix the issue from there. Press ⊞ WINDOWS + X to open the hidden menu in Windows and click on Command Prompt (administrator) In command prompt type next line and press ENTERDEL /F /S /Q /A “C:\Windows\System32\drivers\mfewfpk.sys Reboot the system

4. Scan your PC for malware

   Sometimes corruption in the system is caused by malware, Scan your system for malware, viruses, etc.

5. Check connections or other hardware issues

   If all methods fail, open your PC case and check to see if connections everywhere are properly connected and tight. Clean your PC and turn it back ON

6. Use system restore

   If anything fails, use Windows system restore and bring back computer into a state where everything was working fine.

Error 400 - What is it?

Error 400 is a bad request error that displays in the internet browser like a web page. It pops up when the web page you’ve requested cannot be found. Error 400 may be displayed in one of the following formats on the computer screen:

• ‘400 Bad Request’
• Bad Request - Invalid URL"
• "HTTP Error 400 - Bad Request"
• "Bad Request. Your browser sent a request that this server could not understand.”
• "HTTP Error 400. The request hostname is invalid."
• "400 - Bad request. The request could not be understood by the server due to malformed syntax. The client should not repeat the request without modifications."

Solution

Error Causes

Error 400 can be generated due to multiple reasons. These include:

• Wrong URL
• Browser cookies
• Outdated DNS cache

Though this error code is not fatal like the blue screen of death and runtime errors nonetheless it is still advisable to fix it to access your desired website without any inconvenience.

Further Information and Manual Repair

Here are some of the best ways to fix error 400 on your PC without any professional help. Try these methods to resolve error 400:

Method 1

This might come to you by surprise that the most common cause for a 400 Bad Request error is because the URL of the website was typed wrong. So, first things first make sure the URL you’ve inserted is correct. If the URL typed is correct, then try other methods illustrated below.

Method 2

Sometimes error 400 may pop up due to outdated DNS records. DNS cache stores the location (IP addresses) of web servers that contain pages that you’ve viewed recently. You are unable to access the site if the location of the webserver changes before the entry in your DNS cache updates. If this is the error cause then simply clear your DNS cache to resolve. Follow these steps to clear the DNS cache on Windows 8.

• Press Win+X to open the WinX menu.
• Now ‘right click’ on command prompt and select RUN as Administrator. Enter the following command:
• ipconfig /flushdns

If the command was successful, you will see the following message: Windows IP configuration successfully flushed the DNS Resolver Cache. This method will hopefully repair error 400 on your computer screen.

Method 3

Another reason for error 400 can be browser cookies. Many sites report error 400 when a cookie it reads is corrupt or too old. In such a situation it is advisable to clear your browser cookies. You can do it manually but it can be time-consuming virtually because the steps involved in deleting cookies differ considerably depending on what web browser you’re using. So, to avoid the hassle it is advisable to download Reimage to remove browser cookies immediately. This is a user-friendly PC Fixer deployed with a powerful registry cleaner. It removes all obsolete and unnecessary files from your PC including junk files, internet history, and cookies in seconds. Click here to download Restoro.