Fix Windows defender 0x800700AA Error

Cache files are temporary files that have been created by various applications and services when used.  As temporary files, they are safe to be removed and deleted from the system since the application or service will create new ones when needed but sadly will not remove old ones, this task is left to OS itself. Automatic Windows cleanups can mostly take care of these things but for top-notch performance clearing cache manually is a far better option. We will here explore various cache temporary files, where they are, and how to clean them. Sit back and let’s do some cleaning!

Clear cache using Disk Cleanup

1. Open Start menu and search Disk Cleanup
2. Click on it in search results
3. Click on the drives drop-down menu and select the drive where is Windows 11 installed
4. In the Files to Delete section enable all boxes and click on OK
5. Click on delete Files to confirm

Clear Microsoft store cache

1. Press ⊞ WINDOWS + R to open the run dialog
2. Type in WSReset.exe and press ENTER
3. Black blank windows will appear, wait for the window to close itself and you are done

Clearing location cache

1. Press ⊞ WINDOWS + I to open location history
2. Select Privacy & Security
3. In the App Permissions section click on Location
4. On-Location page click on Clear

Clear and flush DNS

1. Press Start and search for Windows Terminal
2. Click on Terminal in search results
3. Type in: ipconfig /flushdns and press ENTER

And that is that!

Mozilla Firefox has introduced a new feature known as Restart with Windows which allows the browser to automatically start when your Windows 10 computer boots. This means that if you leave the Firefox browser opened while shutting down your computer, Firefox will re-open automatically along with the tabs that were opened right before you shut down your computer. Although some users may find this feature convenient, there are others who do not approve at all as it could be a nuisance. So if you’re one of the latter, then read on as this post will show you how you can disable the Restart with Windows feature in the Firefox browser on your Windows 10 computer. Refer to the instructions laid out below to get started.

• Step 1: Open Mozilla Firefox and if it’s opened already, just open a new tab and then type the following text in the address bar:

about:config

• Step 2: After typing the text given above, hit Enter and if a prompt with a warning message pops up, simply click on the “I accept the risk!” button to proceed.
• Step 3: Next, type “Restart” in the search filter which should display the following preference in the window:

“toolkit.winRegisterApplicationRestart”

• Step 4: After that, check for the preference value and then see if it’s set to true or not. If it is set to true, then it means that the Restart with Windows feature is enabled so obviously, to disable it, you need to set its value to false.
• Step 5: Now restart your computer without closing Firefox. After restarting your computer, you should no longer see Firefox starting automatically.

The Restart with Windows feature by default is disabled for most users. On the other hand, Mozilla will have this feature enabled as the default configuration in the coming weeks so it’s best that you now know what to do when that time comes since the newer versions of Mozilla Firefox are already being shipped with the Restart with Windows feature. However, if this post did not help you, then you might want to check if the feature has been added to the Startup folder, and from there, you can disable this startup program using the Task Manager > Startup tab.

Stop 0x00000050 is an error code that is popularly known as the Blue Screen of Death (BSoD) error. This error occurs when Windows crashes on your system. Stop 0x00000050 error is displayed in a blue screen which is why it is called the BSoD error.

The error message appears in the following form:

Stop 0X00000050 (parameter1, 0, parameter3, parameter4)

PAGE_FAULT_IN_NONPAGED_AREA”

However, the parameters within the Stop 0x0000005 error message sometimes vary depending on your PC configuration.

Solution

Error Causes

The most common causes of the Stop 0x0000005 error are:

• Hardware malfunctioning
• Overheating of the components
• Installation of a faulty device driver
• Incompatible DLL files
• Corrupt Registry
• Spyware and Virus Infection

Whatever the cause may be, the Stop 0x00000050 error message is alarming and should be fixed at the earliest as it indicates major system stability problems that can often lead to data loss and system corruption.

Further Information and Manual Repair

To fix and repair the Stop 0x0000005 error you don’t always have to hire an IT professional. In fact, fixing this error is quite easy and you can do it yourself regardless of whether you have a good know-how of computers or not.

So, let’s get started! Here are some the easy DIY solutions to fix the Stop 0x0000005 error:

Sometimes this error may occur due to a temporary issue like overheating of the computer components. When this happens all you need to do is switch off the computer and allow the components to cool down. Try starting up your computer after a couple of hours. If the blue screen of death does not occur again, then this means there is nothing to worry about and the problem is resolved.

However, if the error appears again on your screen, then you need to try something else to solve and fix this error on your PC. If the cause of the error is a faulty device driver, then it is advisable to disable and remove it. Try updating the latest version of the faulty device driver. Using updated software helps ensure your PC keeps running smoothly.

If the cause of the Stop 0x0000005 error code is your system's exposure to viruses and spyware, then you must immediately download a powerful antivirus program. After you download it, scan for viruses on your system. Once the scanning is complete, you will see a scan report showing viruses on your PC. Delete all of them and click on repair.

Furthermore, you can also add more RAM to prevent and fix the Stop 0x0000005 error message on your computer. This solution is suitable when you try to run a program on your PC and you get this error message.

What is QTCF.dll Error?

Sometimes you may experience QTCF.dll error on your computer either during installation or while upgrading applications like iTunes and QuickTime. This error indicates that the installation or the upgrading of the desired application was unsuccessful. The QTCF.dll error is recognized by the Apple Support Community and they have provided a solution to fix this error easily.

Solution

Error Causes

QTCF.dll error occurs because the computer overloads with too much data which corrupts and damages registry files. And therefore the desired program fails to download and start on your PC. When this happens you see a pop up on your screen and the QTCF.dll error message that is usually displayed as:

• QTCF.dll not found
• QTCF.dll file is missing

Such message display hinders your ability to use iTunes or QuickTime applications on your PC. Furthermore, it also slows the performance of your system and you may encounter startup and shutdown problems. Therefore, it is advisable to repair the problem and fix the QTCF.dll error right away.

Further Information and Manual Repair

The good news is that you don’t need to go to a professional or be an IT expert in order to fix the QTCF.dll error. Since this error means that the installation or the attempt to upgrade the system was unsuccessful therefore you need to reinstall the fresh copy of the application. Here’s how you can easily fix the problem by yourself and install a fresh copy of the application: Step 1: First close all the applications running on your computer. Step 2: Now uninstall the application that you were trying to install such as iTunes or QuickTime.  To do this, go to the start menu, click on settings, control panel, and programs. Now click on the application you want to remove. Step 3: Once the application is uninstalled and removed from your computer, then restart it again. Step 4: Now download a fresh version of the application (iTunes or QuickTime) from Apple’s official website http://www.apple.com/quicktime/download/. Step 5: Run the installer. If reinstalling doesn’t work, then it is advisable to download the QTCF.dll repair tool. This repair tool will scan your PC for errors in seconds. Once the scanning is complete, click on the ‘fix all’ button to repair your computer. Once the error is fixed, restart your computer and then try reinstalling the desired application one more time.

A Word of Advice

For regular PC users, it is advisable to install an anti-virus and malware scanner and run it every time you use your computer. This helps you keep informed about the viruses or errors that your computer might be exposed to. And you can take timely actions before you experience file corruption and damage.

The Windows 10 Orange Screen of Death, unlike Blue Screen of Errors, is quite an uncommon error where the hardware is the culprit which is mostly caused by some issues with the GPU. If you are currently facing this problem, then you’ve come to the right place as this post will guide you on what you can do to fix it. There have been reports from users that the Orange Screen of Death is caused by various reasons. Some users reported that they encountered Orange Screen of Death when they were watching a YouTube video, while some were not able to boot into their Windows 10 PCs and encountered an error instead of that either says, FAULTY_HARDWARE_CORRUPTED_PAGE or WHEA_UNCORRECTABLE_ERROR error. In addition, this error can also occur when your computer wakes up from Sleep or while using BitLocker, or while you use a second monitor. Whatever the case is, you can try updating your drivers or lower the clock speed of the GPU. You could also try to fix the DRIVER_IRQL issue in case it’s the one that triggers the error or performs Automatic Repair or uninstalls any recently installed software.

Option 1 – Update your Graphics card drivers

One of the possible reasons why you’re getting the Orange Screen of Death error is most likely related to the Graphics card drivers in your computer. Thus, the first thing you can do to resolve it is to update these drivers by following these steps:

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in 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.

Option 2 – Try to uninstall software you’ve installed recently

If you have installed a software or two recently and then suddenly encounter this Orange Screen of Death, then they are most likely the culprits. The best thing you can do is to first check the System Log in the Event Viewer for any additional information in case it’s not the GPU but some other driver or device that’s causing the error. Once you have identified the culprits, uninstall them and see if the error is fixed.

Option 3 – Try disabling Overclocking

If overclocking is enabled, you might have to disable it as some users reported that the WHEA_UNCORRECTABLE_ERROR 0x00000124 error started to appear right after overclocking. To disable it, follow the steps below.

• Go to the Start Menu and open Settings.
• Next, select Update and Security and go to the Recover tab.
• From there, click on Restart now in Advanced startup. This will restart your computer.
• Once you’re in the Advanced startup, go to Troubleshoot and then select Advanced Options.
• From there, select the UEFU Firmware Settings.
• Now click on Restart. Once your computer has restarted, it will automatically open BIOS.
• From the BIOS, go to the Advanced tab and navigate to Performance and then look for Overclocking.
• Once you’ve found Overclocking, make sure that it is disabled. If it’s not, then disable it and then save the changes made by tapping the F10 key.
• Start your computer normally and check if the WHEA_UNCORRECTABLE_ERROR 0x00000124 error is now fixed.

Option 4 – Use the Driver Verifier Manager

The Driver Verifier Manager is another tool in Windows that could help you fix driver-related issues. And so if you want to fix the Wdf01000.sys Blue Screen error, you need to use the Driver Verifier Manager:

• Type in the keyword “Verifier” in the Cortana search box to search for Verifier in Windows 10.
• After that, select the option “Create custom settings”.
• Make sure that you have checked everything except the options “DDI compliance checking” and “Randomized low resources simulation”.
• Next, select the option “Select driver names from a list” option.
• Afterward, you have to select all the drivers from any unofficial or third-party provider. To simply put it, you have to select all the drivers that are not supplied by Microsoft.
• Then click on the Finish button.
• Open Command Prompt as administrator and execute this command – verifier /querysettings
• The command you just executed will display the Driver Verifier settings so if you see any of the flags enabled boot your Windows 10 PC into Safe Mode.
• Open the Command Prompt as admin again and run this command – verifier /reset
• The command will reset the Driver Verifier. Once the process is done, restart your PC and check.

Option 5 – Try to run the Automatic Repair Utility

You might also want to use Automatic Repair in fixing the error. To do so, follow the steps below.

• You can start by creating and booting from a bootable Windows 10 USB Stick.
• After that, click on Repair your computer located on the bottom left corner when you are on the initial Windows Startup screen.
• Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
• Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.

Error Code 0xC1900101, 0x20017 – What is it?

Error code 0xC1900101, 0x20017 in Windows 10 occurs when Windows users attempt to upgrade to Windows 10 but fail to complete the installation process. This Windows error code may occur due to issues with a third-party antivirus program or problems related to a driver or hardware. When this occurs users will receive an error message and their machine will automatically revert to the original operating system on the device. Common symptoms of the error code include the following:

• Error code 0xC1900101-0x20017 message box
• Inability to complete Windows 10 upgrade

Solution

Error Causes

Like many other error codes affecting Windows 10 users, 0xC1900101-0x20017 may result due to several different reasons. Oftentimes, error code 0xC1900101 -0x20017 affects users who attempt to upgrade their operating system but have incompatible drivers or hardware as well as antivirus or other security systems which prevent the upgrade from occurring. If this error message is not resolved, it could give birth to other error messages such as error code 0x80070652. 

Further Information and Manual Repair

To fix this particular error code affecting Windows 10 devices, you will need to employ at least one manual repair method mentioned within this article. Manual repair methods offer effective solutions as they seek to address the root causes related to Windows error codes. When the manual repair methods are implemented correctly, users are usually able to quickly overcome issues that cause Windows error codes and can thereafter access all the benefits Windows has to offer to its users.

Note, however, that in a few cases where technical skills are required, the need for a Windows repair technician may present itself. In such a case, resort to Windows forums and other resources to access help from a certified Windows professional. Also, consider using an automated tool where necessary.

Method One: Temporarily Disable or Uninstall Third-party Security Software

Some third-party security programs or antivirus software may interfere with the installation process when Windows users attempt to upgrade to Windows 10. To verify if this is the issue causing error code 0xC1900101-0x20017 on your device, temporarily uninstall or disable these applications. You may easily do so by checking the settings of these programs or visiting Settings within the Windows Start Menu.

Once you have disabled these programs on your device, reboot your machine and attempt to update to Windows 10. If the issue was caused by a third-party app, error code 0xC1900101-0x20017 will no longer occur and your machine will successfully upgrade to the version of Windows 10 you attempt to download.

However, in the case where error code 0xC1900101-0x20017 in Windows 10 reoccurs during the installation process, you will need to resort to another manual repair method listed below.

Method Two: Disable Firewall Software

Like method one, this manual repair method can be effective in combating issues related to 0xC1900101-0x20017. This is of course, dependent on whether or not the error code is due to an incompatible security program.

Temporarily disable your firewall by adjusting its settings. Once this step is complete, reboot your machine and attempt to install the latest version of Windows 10. If you are able to complete the process, this means the problem was due to an issue with your firewall. You can then enable the firewall you previously disabled or download another program as its replacement.

If the error code reoccurs, however, consider implementing the next manual repair method on this list.

Method Three: Use Command Prompt to Check for Damaged System Files

Command Prompt can be very effective in helping regular as well as technically skilled users repair issues with their PC. In the case of error code 0xC1900101-0x20017 in Windows 10, access Command Prompt using the following instructions.

• Step one: Right-click Start Menu
• Step two: Select Command Prompt (Admin)
• Step three: Type sfc /scannow

Be sure to enter the command as it is written above, with a space between “sfc” and “/scannow”. Wait until the scan is complete. If there are any errors related to system files, i.e. if any system files are damaged, corrupted, or missing, your machine will begin to fix it. Once the process is complete, reboot your PC then reattempt the Windows 10 upgrade process via Windows Update. If you are successful, it means that you have rectified error code 0xC1900101-0x20017. Otherwise, you may need to contact a Windows repair technician.

Method Four: Download 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.

Coming in October for insiders and in November for all in the update, Microsoft has prepared a series of updates which they call an "additional set of experiences"

These updates are looked upon by Panos Panay, a vice executive president at Microsoft & chief product officer for Windows and devices as sort of makeup tests. They will consist of new additions with the biggest one being a tabbed version of File Explorer.

File Explorer received a UI makeover in the last update but the tabbed interface was missing which was expected by many users so it will come in following the next update.

The rest of the features that we will receive are an updated Photos application, Suggested Actions in the Windows Shell, Overflow menu for the taskbar, and improved Nearby Share.

The tabbed File Explorer interface is essentially File Explorer’s version of Sets, the tabbed window interface that Microsoft tested out several years ago. In testing, the tabbed interface proved handy for moving and copying files, and we’d expect the same once the feature formally goes live. The difference between Sets and the tabbed File Explorer interface is Sets allowed for multiple applications to be clustered together via tabs.

Photos app will include a “new photos-managing experience that brings a gorgeous gallery, simplifying browsing, finding, management and consumption of your collection of photos.” It will allow “easy backup to OneDrive” and a “delightful Memories experience.”

As for other features, nothing specifically was said except giving just some tips on what will they bring, it is obvious that File Explorer and the photos app were the main focus for MS in this upcoming update.

In case you don’t know, Driver Verifier is a built-in utility in the Windows 10 operating system. It is the one that ensures the integrity of all the drivers in the system. It can detect any suspicious behaviors of the drivers and if it finds the driver signature of some suspicious activity during runtime, it stops the suspected action by triggering a BSOD or Blue Screen of Death error and one of these Stop errors is the DRIVER_VERIFIER_DMA_VIOLATION error. When you encounter such an error, you will see the following message on your screen:

“Your PC ran into a problem that it couldn’t handle, and now it needs to restart. If you’d like to know more, you can search online later for this error: DRIVER_VERIFIER_DMA_VIOLATION”

There are several ways you can fix this error. You can try to disable the Driver Verifier or run the Hardware troubleshooter. You could also try to update, roll back or uninstall the drivers on your computer. For more details, refer to each one of the options provided below.

Option 1 – Try to disable the Driver Verifier Manager

The Driver Verifier Manager is another tool in Windows that could help you fix driver-related issues.

• Type in the keyword “Verifier” in the Cortana search box to search for Verifier in Windows 10.
• After that, select the option “Create custom settings”.
• Make sure that you have checked everything except the options “DDI compliance checking” and “Randomized low resources simulation”.
• Next, select the option “Select driver names from a list” option.
• Afterward, you have to select all the drivers from any unofficial or third-party provider. To simply put it, you have to select all the drivers that are not supplied by Microsoft.
• Then click on the Finish button.
• Open Command Prompt as administrator and execute this command – verifier /querysettings
• The command you just executed will display the Driver Verifier settings so if you see any of the flags enabled boot your Windows 10 PC into Safe Mode.
• Open the Command Prompt as admin again and run this command – verifier /reset
• The command will reset the Driver Verifier. Once the process is done, restart your PC and check.

Option 2 – Try to reinstall or update device drivers of recently installed hardware

If the first few options didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer.

Option 3 – Try running the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like DRIVER_VERIFIER_DMA_VIOLATION. It can be found in 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.

Note: You could also run the Hardware and Devices troubleshooter as it could also help in fixing the DRIVER_VERIFIER_DMA_VIOLATION error.

Option 4 – Try running Microsoft’s online Blue Screen Troubleshooter

If running the built-in Blue Screen Troubleshooter didn’t work, you can also try running Microsoft’s online Blue Screen Troubleshooter. All you have to do is go to Microsoft’s website and from there, you will see a simple wizard that will walk you through the troubleshooting process.

In the last article, we have covered various advantages of Apple hardware over Windows PC, however, PC has their own strengths and advantages over MACs as well. Join us as we explore why would you choose Windows PC over MAC.

Hardware customization

If you like to customize and build your own hardware and customize your existing computer then MACs are out of the picture, on other hand, computers based on Windows operating system are much more flexible in terms of customization.

While Apple hardware is locked and only allows small changes to it, computers running on Windows are free and open to various upgrades and modifications so if you like to play with hardware Windows is your platform.

Gaming

There are games on MAC true but their numbers can not compare to games available for the Windows platform. On top of that, most latest and best gaming hardware is not even available on Apple platforms so if you plan to game in high resolutions and play the latest games there really is no option other than Windows.

Windows Platforms also has multiple emulators that you can use to play games from other older platforms and Microsoft since it owns Xbox has some great plans for both PC and Xbox gaming.

Software back compatibility

Since the introduction of the new MAC OS X, apple really lost a lot of application back compatibility, and a lot of old legacy software can not be run on modern Apple computers. Windows on the other hand have always tried and succeeded in keeping maximum compatibility with older and legacy software.

Also on the Windows platform, there is a lot of community support for old and legacy software so even if it is not officially supported it is backed up by the community.

Software variability

In terms of where can you find the most different software, you need to look no further than the Windows platform. How Windows itself has great backward compatibility and a lot of developers are using it to create new software thanks to Visual Studio and .NET Windows has cemented itself as a platform with the most available software.

The popularity of Windows as the home operating system and as a gaming platform has made it quite interesting in eyes of various developers and tons of small applications are made daily for it. Windows 11 has also brought native android support to it and that has just expanded its already impressive catalog of applications.

Freedom of choice

Overall Windows PC is most appealing for users that like to be able to choose everything, from hardware components to software they would like to use. No other platform will give you larger freedom of choice and better personalization options.

When Microsoft held Windows 11 presentation it took special time to present the upcoming new Windows 11 store as kind of a big deal. It was openly stated that with new Windows we will get a new store with a different attitude and new look.

New Microsoft store

Microsoft has stated that both customer and developer feedback over time has contributed to their redesign and rethinking of the store itself. They want to be sure that policies for developers are more straightforward and clear so more developers will decide to bring their product to Windows. As for customers, they want more safety and more security so they feel protected when making a purchase. The new store will come in Windows 11 but also in Windows 10 as well via update.

Stories and collections

Introducing the new store will be curated stories. Microsoft believes that stores should be focused on user experience so stories from customers themselves will play a big role here. They are rich editorial content to keep you informed about the best apps and inspire you to achieve more with your device. This approach to information is aimed at bringing unknown applications to users via presenting them in a professional manner. Android apps in the store As stated in Windows 11 unveiling and presentation, Android apps will work inside Windows 11. Microsoft has teamed up with Amazon to bring you Android apps directly inside Windows via the new Microsoft store.

Pop up store from within a browser

When you are surfing on a certain webpage and want to save and install the application from there, a new pop-up store window will show allowing you to install the app directly. Microsoft has not said will this feature work outside their Edge browser so we will have to wait and see about that.

Support for multiple types of applications

Since now developers were tied to certain formats if they wanted to publish their application in any kind of environment. Microsoft wants to bridge this. Windows developers can publish any kind of app, regardless of app framework and packaging technology – such as Win32, .NET, UWP, Xamarin, Electron, React Native, Java, and even Progressive Web Apps. For Progressive Web Apps Microsoft has made open-source tool PWABuilder 3.

Flexibility and choice of commerce platform

Starting July 28, app developers will also have an option to bring their own or a third-party commerce platform in their apps, and if they do so they don’t need to pay Microsoft any fee. They can keep 100% of their revenue.