Fixing corrupted system files in Windows

Check your connection. Microsoft Store needs to be online. It looks like you’re not. Check connection Code: 0x80072F7D

This is the error that you get if trying to open the Microsoft store on Windows 10 and it fails. If you experienced this error and are unable to access the store do not despair we are here to help you. This particular error is usually due to some internet issues, follow the presented guide step by step in order to solve it and be able to access the Windows store again.

1. Check your Internet connection

   Since this error is closely tied to internet connection it is advisable to first eliminate the obvious and check if your computer is connected to the internet.

2. Run Network troubleshooter

   Built-in Windows troubleshooter is a great tool and we will be using it in the next few segments in order to locate the issue and fix it. Open Windows 10 Settings app using the WINDOWS + I Click on Network & Internet Click on Network troubleshooter Select network adapter to diagnose Press the Next button.

3. Run Internet Connections troubleshooter

   Press WINDOWS + I to open the Settings app Click on the Update & Security Click on the Troubleshoot Select Additional troubleshooters option Click on Internet Connections option Hit Run the troubleshooter button.

4. Run Windows Store Apps troubleshooter

   Press WINDOWS + I to open the Settings app Select Update & Security Click on the Troubleshoot Use the Additional troubleshooters option Click on the Windows Store Apps option Press Run the troubleshooter button

5. Temporarily disable security software

   Your antivirus or firewall might be interfering with the application, sometimes, in some cases store is detected as a false positive in some security applications, and its access to the internet is cut. Disable your security suite to see if this is the case.

Researchers have discovered 16 vulnerabilities in Bluetooth connections that could be exploited and make from minor to some serious damage to your device. The flaw can be used on chips manufactured by Intel, Qualcomm, and Texas Instruments while connecting to external devices like speakers, headphones, keyboards, mice, etc.

Who is affected?

Mentioned chips are used by many in a vast range of devices including big players with their products like Microsoft Surface laptops, Dell desktops, Samsung Phones, Google Pixel, and OnePlus handsets. The Bluetooth bug affects a wide range of devices, including smartphones, laptops as well as smart home gadgets. In total, more than one billion devices that rely on Bluetooth are believed to be impacted.

What is the damage?

The amount of damage possible with this flaw depends on the type of device with the chipset. Some devices can only be crashed after a specially crafted packet is sent to the flawed chip. If that's the case with your gadget, it can be easily resolved with a simple restart. With other devices, hackers can take advantage of the Bluetooth Classic flaw to remotely run malicious code. That could allow malware to be installed remotely. Researchers say vendors were informed about these issues months ago before the findings were published. The good news is this should have given plenty of time for the relevant patches to be pushed out that remedy the flaws. However, you'll need to make sure that you're running the latest version of the operating system to be protected by the patch crafted by the manufacturers.

Android Bluetooth threat

The researchers emphasize the lack of basic tests in Bluetooth certification to validate the security of Bluetooth Low Energy (BLE) devices. The BrakTooth family of vulnerabilities revisits and reasserts this issue in the case of the older, but yet heavily used Bluetooth classic (BR/EDR) protocol implementations. We would also advise users to disable Bluetooth on devices that do not need it. This way you can prevent attackers from sending you malformed LMP packets. Since BrakTooth is based on the Bluetooth Classic protocol, an adversary would have to be in the radio range of the target to execute the attacks. So, in a safe environment Bluetooth can be enabled.

Windows 11 provides several different ways to make your cursor stand out and be easier to spot inside it. You can make the mouse pointer larger, invert it, or change its color.

1. Press ⊞ WINDOWS + I to open settings
2. Click on Accessibility in the sidebar
3. Select Mouse Pointer and Touch
4. Adjust mouse cursor size with size slider by clicking on circle and dragging it left or right
5. Under Mouse Pointer Style pick desired style from White, Black, Inverted, and Custom
   1. White: The cursor is white with a black outline (standard setting)
   2. Black: Cursor is black with a white outline
   3. Inverted: Cursor automatically changes color to an inverted version of the color it is currently hovering over
   4. Custom: You can pick the color for the cursor that you want.

And that is all about it, once you are done with pointer customization just close settings, all changes are saved automatically.

The Google Chrome browser checks the SSL Security Certificate of the website that you are trying to open. However, if Chrome is not able to check the certificate then you might encounter an error related to the SSL Certificates which you might face when browsing the web. This particular error is the ERR BAD SSL CLIENT AUTH CERT error which is caused by many factors such as the computer’s Time, Cached Data is corrupt, Date is out of sync, as well as third party software installed in your computer is the one that’s blocking the site and many more. The ERR_BAD_SSL_CLIENT_AUTH_CERT error might also be coming from the website’s end. It could be that the server is rejecting the certificate the client website is sending. The certificate might have already expired or the server may not trust its issuer – whichever the case may be, here are some options you can check out to fix the error.

Option 1 – Sync Date and Time

The first thing you can try is to sync the Date and Time of your computer as the wrong Date and Time settings are one of the most common causes of connection problems like the ERR_BAD_SSL_CLIENT_AUTH_CERT error. This is because of the incompatibility between the SSL Certificate validation date and the System Clock. Thus, you have to sync your System Clock. Refer to the steps below to do so.

• Right-click on the Taskbar and click on the Adjust Date and Time option.
• Next, click on the Sync Now button to synchronize the Date and Time with the Microsoft Servers.
• Now make sure that the Time Zone that’s set on the same page is correct.

Option 2 – Try clearing the browser data

There are times when some data in the browser is conflicting with the loading of the website and triggers errors like ERR_BAD_SSL_CLIENT_AUTH_CERT. And so you can try to clear your browser’s data. This might be a very basic solution but oftentimes it works in fixing this kind of error in Google Chrome. Follow the steps below to clear the data in your browser.

• Open your Google Chrome browser.
• After that, tap the Ctrl + H keys. Doing so will open a new panel that allows you to delete the browsing history and other data in your browser.
• Now select every checkbox that you see and click on the Clear browsing data button.
• Then restart your Chrome browser and check if you can now open any website or not.

Option 3 – Try to check and fix any possible conflicts with third-party programs

Third-party programs like internet protection software could be interrupting the connection and causing the error. For some unknown reason, your antivirus program or firewall might be detecting the webpage you are trying to open as malicious or with less credibility which is why it is blocking the browser from opening the website. To fix that, if you have third-party programs installed like VPN, security software, or any add-on, or firewall, you can disable them temporarily and see if it fixes the problem and you’re able to pull up the website. After a while, you have to enable them back and configure their settings so that the website won’t get blocked again.

Option 4 – Try enabling SSL 3 / TLS and disable QUIC Protocol

If you were using Google Chrome when you got the ERR_BAD_SSL_CLIENT_AUTH_CERT error, then you need to follow the protocol fixes for SSL3/TLS and QUIC which are usually some of the reasons that cause the SSL version / Cipher Mismatch. It also has a few fixes for Windows 10 computer where you can clear the certificates and make sure that your computer date and time is in sync with your time zone and so on. If you were using Edge or Internet Explorer when you got the error, then you have to follow the steps below.

• Type “Internet” in the search box of your browser. After that, you should see the Internet Options from the search results.
• Next, open the Internet Properties window and switch to the Advanced tab and then scroll down to the Security section.
• From there, check the “Use TLS 1.1” checkbox as well as the “Use TLS 1.2” checkbox and then click OK to save the changes made.
• Restart the browser.

On the other hand, if you were using Firefox when you go the error, here’s what you have to do.

• Open Firefox and in the address bar, type “about:config” and hit Enter.
• If a warning appears, just click on the “I accept the risk!” button to proceed.
• Next, type in “TLS” in the search field and hit Enter.
• Then look for “security.tls.version.min” and double click on it and set its integer value to 3 to force the protocol of TLS 1.3.
• Now click OK and restart Firefox and do the same thing with SSL.

Option 5 – Try to update Google Chrome

You might also want to try updating your browser to its latest version and have it installed in your computer. After you install the update, check if you can now open the website you were trying to open earlier.

Option 6 – Get rid of any conflicting browser extensions

• Open Chrome and press Alt + F keys.
• Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
• Click the Recycle bin and select Remove.
• Restart Chrome and press Alt + F keys again.
• Proceed to On Startup and mark Open a specific page or set of pages.
• To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Note: If removing the browser extensions or toolbars didn’t work, you can also try to reset your Google Chrome browser.

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

As in previous Windows 10, inside Windows 11 also when you press the ALT + TAB key combination you will get a preview of all running applications along with all Browser tabs so you can go through them and pick the one you want to switch to. Alto, I personally am a big fan of alt-tabbing, I must admit that I am not a big fan of having multiple browsers tabs on screen when I do press key combo. Luckily there is a very easy way to turn this feature off. Turning browsers tabs thumbnails off

1. Press ⊞ WINDOWS + I to open settings
2. Click on System in the sidebar
3. Scroll down and select Multitasking
4. Find Alt + Tab section and click on the drop-down menu
5. Pick Open Windows Only
6. Close settings

Now when you press the ALT + TAB key combination you will still see your browser but only an active tab in it instead of all tabs as different preview thumbnails.

In case you don’t know, Microsoft hooks up every machine that is running Windows 10 with an Advertising ID which helps them in providing Windows 10 users with relevant ads. These ads are delivered to users in the Action Center, Start Menu as well as the ads inside the UWP Applications. What makes these advertisements relevant is that they keep track of your browsing trends, likes and dislikes, with the help of the Advertising ID. However, if you are not fond of advertisements and you do not want this feature of Microsoft to track your usage, worry not for you actually have the option to disable targeted ads on your Windows 10 computer by turning off the Advertising ID. And you can do that during Windows 10 Setup or using the Group Policy Editor. For more details, refer to the instructions provided below for each one of the methods.

Option 1 – Turn off Advertising ID during Windows 10 setup

If you are about to install Windows 10, then during the installation process, your computer boots into the Install and Configure Windows 10 screen with Cortana that assist you during the setup. Once you reach the last page which is “Choose privacy settings for your device”, you will see the Advertising ID of your computer. Under the Advertising ID, you have to disable or toggle off the “Apps can use advertising ID to provide more personalized advertising in accordance with the privacy policy of the app provider” option. After you disable it, click on the Accept button to proceed with the installation. After that, the copy of your Windows 10 you are using will have the Advertising ID disabled by default.

Option 2 – Turn off Advertising ID via Group Policy Editor

• First, tap the Win + R keys to launch the Run utility.
• Then, type “gpedit.msc” in the field and click OK or tap Enter to open the Group Policy Editor.
• Next, navigate to this group policy setting: Computer Configuration > Administrative Templates > System > User Profiles
• Now double click on the “Turn off the advertising ID” option and set the radio button to Enabled. Once you do, you will see the following description on your screen:

“This policy setting turns off the advertising ID, preventing apps from using the ID for experiences across apps. If you enable this policy setting, the advertising ID is turned off. Apps can’t use the ID for experiences across apps. If you disable or do not configure this policy setting, users can control whether apps can use the advertising ID for experiences across apps.” Note that setting the radio button to Enabled or Not Configured will turn off the data collection of the Advertising ID.

• Finally, exit the Group Policy Editor and then restart your computer to apply the changes made successfully.

In the past, CDs, DVDs, and floppy drivers used to be the primary sources of external storage for many users – that is until the USB storage devices took over. These days, a lot of devices no longer have a built-in CD or DVD writer or reader as it contributes to the thickness of the device. On the other hand, there are still various devices that still come with a built-in CD or DVD writer or reader. However, recently, users who still use CD or DVD on their devices reported a problem where the CD or DVD icon is not visible in the File Explorer as well as in “This PC” or the My Computer page. The cause of this issue is still unknown at the time of writing, but there are still some potential fixes you can try to fix it. You can try to update or roll back the device drivers or apply some tweaks in the Registry Editor. For more details, refer to the given options below.

Option 1 – Try to update or rollback device drivers

The first thing you can try to fix the missing CD or DVD icon is 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. Note that the concerned drivers will be listed under the DVD/CD-ROM drives section as well as the IDE/ATAPI Controllers section.
• From there, look for the following drivers:
  • ATA Channel 0.
  • ATA Channel 1.
  • Standard Dual Channel PCI IDE Controller.
• Now, right-click on each one of the listed drivers and update them all. You could also try to roll them back to their previous versions.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver.

Option 2 – Try to use the Registry Editor

• Tap the Win + R keys to open the Run dialog box and type “Regedit” in the field and then tap Enter to open the Registry Editor.
• Next, navigate to this registry key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E325-11CE-BFC1-08002BE10318}
• After that, look for the DWORD values named “UpperFilters” and “LowerFilters”.
• Right-click on each one of these DWORD values and select Delete.
• Now restart your computer and see if it fixes the problem.

Option 3 – Try creating a new Registry entry

There is another option you can try in the Windows Registry to fix the missing icon of the CD/DVD. You can try adding a new entry. How? Refer to these steps:

• Tap the Win ­+ R keys to open the Run dialog box and type “Regedit” in the field and hit Enter to open the Registry Editor.
• After that, navigate to this registry path: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesatapi
• From there, right-click on “ATAPI” and select New > Key.
• After that, name it is “Controller0” and right-click on the sub-key and then select New > DWORD (32-bit) Value.
• Now name it as “EnumDevice1” and double click on it and then set its value data to “1”.
• Click OK and restart your computer to apply the changes made successfully.

Athwbx.sys or the Qualcomm Atheros driver file is known to trigger several Blue Screen of Death errors. This occurs when the driver gets corrupted or when the operating system is unable to access or find it. In addition, bad sectors in the hard disk or RAM can also cause BSOD errors. The athwbx.sys file is known to cause the following BSOD errors listed below:

• SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (athwbx.sys)
• STOP 0x0000000A: IRQL_NOT_LESS_EQUAL (athwbx.sys)
• STOP 0x0000001E: KMODE_EXCEPTION_NOT_HANDLED (athwbx.sys)
• STOP 0×00000050: PAGE_FAULT_IN_NONPAGED_AREA (athwbx.sys)
• Your PC ran into a problem and needs to restart. You can search online later for this error: athwbx.sys

Before you proceed with the troubleshooting tips given below, you might want to try performing System Restore as it could resolve Blue Screen errors caused by the athwbx.sys file. To run System Restore, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

If System Restore didn’t help in fixing the Blue Screen error, now’s the time for you to resort to the troubleshooting tips provided below but before you get started, make sure that you create a System Restore point first.

Option 1 – Try recreating the athwbx.sys file

The first thing you can try is to recreate the athwbx.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. This is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.

• Boot your Windows 10 PC in Safe Mode.
• Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
• From there, look for the file named sys and rename it to athwbx.old.

Note: As you can see, the file’s extension has changed from .sys to .old.

• Now restart your computer and check if the athwbx.sys Blue Screen error is now fixed.

Option 2 – Try to update or rollback your device 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 – Run the System File Checker Scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• 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.

Option 4 – Try to run the CHKDSK utility

Running the CHKDSK utility might also help you resolve the athwbx.sys Blue Screen error. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the following command and hit Enter:

chkdsk /f /r

• Wait for the process to be completed and then restart your computer.

Option 5 – Run the Memory Diagnostic Tool

Running the Windows Memory Diagnostic tool in Windows 10 might also help you in fixing the athwbx.sys Blue Screen error. Refer to the steps below on how to run this tool:

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

Note: After you select the option, your PC will restart and check for memory-based issues. If it finds any issues, it will automatically fix them and if there’s no issue found, then it’s most likely not a memory-based issue so you should try the other options given below.

Option 6 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like athwbx.sys. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Usually when online service is not working or when something goes wrong online it is DNS, well that is what most of the time is the case. And yes, DNS or Domain Name Server seems to be an issue with Facebook being completely down along with Instagram and wassap. The true cause is that there is no working Border Gateway Protocol (BGP) routes into Facebook's sites. BGP is the standardized exterior gateway protocol used to exchange routing and reachability information between the internet top-level autonomous systems (AS). Most people, indeed most network administrators, never need to deal with BGP. Cloudflare VP Dane Knecht was the first to report the underlying BGP problem. This meant, as Kevin Beaumont, former Microsoft's Head of Security Operations Centre, tweeted, "By not having BGP announcements for your DNS name servers, DNS falls apart = nobody can find you on the internet. Same with WhatsApp btw. Facebook has basically de-platformed themselves from their own platform." Many people are very annoyed by this and with the fact that they cannot use their social media platforms but it seems that Facebook employees are in even bigger annoyance as it was reported that Facebook employees can't enter their buildings because their "smart" badges and doors were also disabled by this network failure. If true, Facebook's people literally can't enter the building to fix things. Reddit user u/ramenporn, who claimed to be a Facebook employee working on bringing the social network back from the dead, reported, before he deleted his account and his messages: "DNS for FB services has been affected and this is likely a symptom of the actual issue, and that's that BGP peering with Facebook peering routers has gone down, very likely due to a configuration change that went into effect shortly before the outages happened (started roughly 1540 UTC). There are people now trying to gain access to the peering routers to implement fixes, but the people with physical access is separate from the people with knowledge of how to actually authenticate to the systems and people who know what to actually do, so there is now a logistical challenge with getting all that knowledge unified. Part of this is also due to lower staffing in data centers due to pandemic measures." Ramenporn also stated that it wasn't an attack, but a mistaken configuration change made via a web interface. Both BGP and DNS are down, the "connection to the outside world is down, remote access to those tools don't exist anymore, so the emergency procedure is to gain physical access to the peering routers and do all the configuration locally." Technicians on site don't know how to do that and senior network administrators aren't on site. It seems that it will all be down for a couple of more hours before the issue is resolved.

If you are not able to access the Windows 10 Advanced troubleshooting options within Windows then you’ve come to the right place as this post will guide you on how you can repair or boot the Windows 10 installation without losing data using the bootable installation USB or DVD media. To repair or boot Windows 10 using the installation media, you have to download the Windows ISO, create a bootable USB or DVD drive, boot from the media and select “Repair your computer” and then select Startup Repair under Advanced troubleshooting. To get started, follow the given steps below carefully. Step 1: Frist, download the Windows ISO. Although this is not necessarily needed, it’s still better if you download the Windows ISO first so make sure that you download the same ISO version as installed on your computer. Step 2: Next, create a bootable USB or DVD drive.

• Insert your USB drive into your PC.
• Tap the Win + R keys to open the Run dialog box and type in “cmd” and tap Enter to open the Command Prompt. Alternatively, you can also search for “cmd” in the Cortana search box to open Command Prompt.
• Once you’ve opened CMD, type in this command to open the DISPART utility – diskpart
• After that, you should see a new black and white window that would say, “DISKPART>”.
• Next, type in “list disk” in the command line and tap Enter to see the list of all the Storage devices as well as your hard disk connected to your PC. Here, you have to identify your disk’s number.
• Type in this command where “X” is the disk number you have identified and then tap Enter – disk X
• Type in this command and hit Enter to clear the table records and all the visible data on the drive – clean
• Now you have to recreate a new primary partition of the drive so you’ll have to type in this command and tap Enter right after – create part pri
• A new primary partition has been created so you have to select it by typing this command and tapping Enter – select part 1
• Now you have to format it to make it visible to normal users by typing – format fs=ntfs quick

Note: If your platform supports the Unified Extensible Firmware Interface or UEFI, replace the “NTFS” with “FAT32” in the command on Step 10.

• After that, type in this command and tap Enter after – active
• Finally, type this command and hit Enter to exit the utility – exit
• After you prepare the image for the operating system, save it to the root of your USB Storage device.

Step 3: After creating a bootable drive, boot from the media and select the “Repair your computer” option. Once you boot from the USB drive, it will start the Windows 10 installation right away. So you must not keep on clicking Next as you will end up installing Windows. You need to look for the “Repair your computer” link on the first installation screen and click on it and then boot your computer into Advanced Recovery. Step 4: Select Startup Repair under the Advanced options screen

• Once you’re at the Advanced Recovery screen, select Advanced Options and select Troubleshoot.
• After that, look for the Startup Repair and click on it and then follow the next on-screen instructions. This solution will help you fix issues that do not allow you to boot into your computer.
• On the next screen, you will see the admin account with its name. Click on it and verify using the account password associated with the email.
• After verification, it will start to diagnose your computer and automatically resolve any detected issues related to boot.
• After the issue is fixed, your computer should reboot normally and you should now be able to use it. Note that your personal files are still intact since the process didn’t delete or wipe them out.