How to Fix 0x80040154 Error Code

Roblox is a very popular online game with millions of gamers playing it each day and as such it will naturally bring a lot of malware and attack on players trying to steal and exploit them for monetary gains. The latest attack and high-profile stealing of currency and assets happened exactly in Roblox.

Malicious activities have been reported to come from chrome extensions. So far 2 extensions have been identified that have hidden malware inside them but there could be more of them currently undetected. Extensions work as a front while in the back they mine user logins and other data in order to steal stuff from the Roblox platform.

To make things worse some of the malware is within long extensions like SearchBlox. The SearchBlox extension allows you to search quickly for other users if it was legitimate but has been compromised within the last month. There is evidence that people are stealing Roblox currency with the data gathered by the hidden backdoor in it.

SearchBlox extension is still Active in Chrome Web Store, with the primary listing still with the "Featured " badge. Google is actively removing malicious software from its storefront on a regular basis but this one still lingers in it.

If you or your kid have this Chrome extension installed, uninstall it right away and always be careful about which extension you install and give access to your system, keep them updated and check various blogs and article sites to inform yourself when a bad one is found.

If you receive an error that says, “An unspecified error occurred during System Restore (0x800700b7)” when you tried to restore your Windows 10 PC, worry not, for this post will help you resolve the problem. This kind of error typically occurs when System Restore was not completed successfully and fails instead with this error. Before you start, you must not abruptly shut down your computer and wait for the error to occur. You may receive this error due to many possible reasons. It could be caused by your antivirus program that’s not letting the process complete or corrupted system files which causes the failure or it could also be caused by an unsuccessful installation of a Windows Update. Here are some fixes you can check out if you can still boot into your computer:

Option 1 – Try to disable your antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the System Restore process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and then run System Restore again, don’t forget to enable the antivirus program back again.

Option 2 – Run the DISM tool

The next thing you can do is run the DISM tool. This tool is known to repair potentially corrupted files in your system as having them could also system issues like the blank dialog boxes. To repair these corrupted system files, you can run the DISM commands:

• Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
• After that, input each one of the commands listed below sequentially to execute them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

• Once you’ve executed the commands given above, restart your computer and check if the problem is now fixed.

Option 3 – Run the System File Checker

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 to good system files that might be the cause why you’re getting the errors 0x8024a11a and 0x8024a112. To run the SFC command, follow the steps given below.

• Type “cmd” in the Start search and then right-click on the appropriate search result.
• Next, select “Run as administrator” to open Command Prompt with admin privileges.
• 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.

• Now restart your computer and see if the problem is fixed or not.

Option 4 – Try to run the System Restore in a Clean Boot State

If the first three given options didn’t work and the service still keeps on failing even though the service is running, you can try putting your computer in a Clean Boot State and then try to run System Restore again.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• Now try to run System Restore again and see if the process goes smoothly.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing the problem with System Restore. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go. On the other hand, if you can’t boot into your Windows 10 computer, here are some fixes you can try instead:

Option 6 – Try running System Restore in Advanced Startup Options

If you cannot boot into your Windows 10 computer, you can try to run System Restore again in the Advanced Startup Options.

• Boot your computer into the Advanced Startup Options screen.
• From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
• Now select Troubleshoot > Advanced Options > Command Prompt.
• After that, type “rstrui” and hit Enter to execute the command which will start the System Restore process.

Option 7 – Run the SFC scan and DISM via Advanced Startup Options

Like what you did in the first given option, you can use the Advanced Startup Options to run both System File Checker and DISM. All you have to do is boot into the Advanced Startup Options and from there select Troubleshoot > Advanced Options > Command Prompt. After accessing Command Prompt, you can run the System File Checker scan first by entering the “sfc /scannow”. As for DISM, you can run the “Dism /Online /Cleanup-Image /RestoreHealth” command.

Option 8 – 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 in 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.

Recently, a number of users reported not being able to use the Restore, Minimize and Close buttons on their Windows 10 computers. This kind of issue can be quite annoying as you won’t be able to use your computer properly, especially when you navigate between programs and windows. In such cases, the buttons on the right side of the title bar won’t respond to any inputs which could be caused by a number of factors such as different input modes, corrupted system files, and many more. If you are one of the users who are currently facing this problem, worry not for this post will guide you on what you can do to resolve it. There are several potential fixes you can check out to fix the issue. You can try to check if Tablet Mode is enabled and if it is, you have to disable it. You could also boot your computer in a Clean Boot State to check if a third-party program is the one that’s causing the problem. In addition, you could also reinstall the program where you experience the problem or run built-in utilities like System File Checker and DISM tool.

Option 1 – Make sure that you are not in Tablet Mode

Since Windows 10 is designed to work on both desktop and mobile devices, it could be that your computer has slipped into Tablet Mode which explains why you’re not seeing the Taskbar. To check if your computer is really in Tablet Mode, follow these steps:

• Go to the Start menu and select Settings.
• Next, select the System setting and from the left pane select the Tablet Mode.
• From there, make sure that the buttons next to the options given below are set to the off position:
  • Hide app icons on the taskbar in tablet mode
  • Automatically hide the taskbar in tablet mode

Option 2 – Put your computer in a Clean Boot State

As pointed out, it is possible that some third-party program or service is the one that’s behind the problem. To isolate this possibility and to identify the culprit, you have to put your computer into a Clean Boot State. To do so, follow the steps below.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• Once your computer is in a Clean Boot State, try to open the program where the problem occurred.

Option 3 – Try reinstalling the program

If the first two options didn’t work, then you might want to consider uninstalling the program and then install it back with its latest version. This should resolve the problem.

Option 4 – Try to run System File Checker

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 to good system files that might be the cause why the Restore, Minimize and Close buttons don’t work. To run the SFC command, follow the steps given below.

• Type “cmd” in the Start search and then right-click on the appropriate search result.
• Next, select “Run as administrator” to open Command Prompt with admin privileges.
• 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.

• Now restart your computer and see if the problem is fixed or not.

Option 5 – Run the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the problem. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish. Once it’s done, restart your computer.

Many Linux users if not all of them can run their distros from a USB drive but did you know you can run Windows 10 from a USB drive as well? Microsoft has introduced all the way back to Windows 8 one feature called Windows To Go and it kept it in Windows 8.1 and in Windows 10 as well. This feature is intended as a convenient way for workers to carry their corporate environments with them, but having your own copy of Windows on a thumb drive could be handy for backup purposes, too, or if you frequently use public machines that lack your preferences/applications or that have a restricted OS.

What you will need?

In order to actually make Windows 10 run from a USB drive you will need the following things:

1. USB drive with a minimum size of 20GB
2. Working computer with Windows 10 running on it
3. Rufus or another ISO to UBS tool, get Rufus here: https://rufus.ie/en_US/
4. Windows 10 ISO file

Making Windows 10 UBS drive

Install Rufus on your Windows 10 and run it. Stick USB in PC and open Rufus. On the screen that follows choose your Windows 10 ISO image and under Image options choose Windows To Go. Click on ready and you are finished, that’s it. After Rufus finishes you have now fully working Windows 10 bootable drive which you can use on another PC for whatever reason.

What is Webguard?

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

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

Assessment of Webguard Potentially Unwanted Program

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

Remove Webguard with Spyhunter

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

Manual Steps for Removal of Webguard

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

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

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

Although there are several Windows 10 devices that are touchscreen-based, the mouse still remains to be an important part of usage for many users especially the ones who do some hardcore work on their Windows 10 computers or laptops. If you’re one of the users who often edit images or videos either for fun or work, using Touch is difficult as it’s a bit hard to drag on the screen so nothing really beats the mouse. However, as awesome as the mouse is, there are times when you encounter issues while using it. One of these issues is when your mouse pointer lags or freezes so in this post, you can try out a few tips that can help you resolve the issue.

Option 1 – Clean both the mouse and the mousepad

It might sound silly but it is a fact that either the mouse or the mouse pad themselves is the problem. Even though mouse balls are long gone, the laser lights that replaced them are not immune to some dirt which is why you need to clean the bottom of the mouse and then clean the mouse pad afterward.

Option 2 – Try changing the USB port

This is another basic thing you can do to resolve the problem since there are instances when USB ports where either your mouse is connected have gone rogue so you need to try switching to a different port and then see if the problem’s fixed or not.

Option 3 – Switch back to the default settings of the mouse

Switching your mouse back to its default setting is always a good idea since you are dealing with a pointer issue. To go back to the default settings of the mouse, here’s what you have to do:

• Click on Mouse and Touchpad.
• Next, click on Additional Mouse Settings located in the right pane.
• After that, click on the “Use Default” option under the Pointer tab.
• Then click on Apply and OK to save the changes made.

Option 4 – Try disabling Smooth Scrolling

You have to slow down both the horizontal and the vertical scrolling of the mouse in the settings which are called “Smooth scrolling”. This will help if you think that the websites you are visiting scroll up and down way too fast.

Option 5 – Try to update or rollback mouse drivers

If the first few options didn’t work for you, then it’s time to either update or roll back the mouse 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 the mouse driver then you need to roll back the driver. Whichever applies to you, refer to the steps below. The problem may be caused by a corrupted or outdated driver. So you have to update or reinstall the mouse driver. How? Follow these steps:

• Open the Devices Manager from the Win X Menu.
• Then locate the Mouse and other pointing devices and right-click on the mouse driver 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, disconnect the mouse and plug it back in to reinstall the mouse driver.

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 6 – Try to check if your laptop is turning off the mouse

In case you don’t know, the power management can turn off the devices that are not in use to save battery power if you use a laptop. And this can also happen on USB-based devices like the mouse. Thus, you need to verify if your laptop is turning off the mouse.

• Go to Device Manager > Universal serial bus controllers > USB Root Hub > Power Management.
• After opening Power Management, uncheck the “Allow the computer to turn off this device to save power” option.
• If you have lots of USB Root hubs, you can try changing each one of them and see if it works or not.

Option 7 – Try updating the Graphics Drivers

• Tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• Restart your PC.

Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it.

Option 8 – Try setting the No Delay option for Touchpad

If you are using a laptop that’s touchscreen-based, you can try setting the delay to zero in the settings. To do so, simply go to Settings > Devices > Mouse and Touchpad. From there, you can set the delay before clicks to “No Delay”.

Stumbling upon downloader.dll not found error is not pleasant to experience, usually, it means that desired application can not be started. There could be several reasons why this error happens from user mistakes, corrupted files, bad installation, and even bad RAM memory. Whatever the reason might be solutions provided are the same for all and offer a fix to this issue. it is advisable to follow provided solutions from start to finish not skipping any one of them since they are tailored to address the simplest solutions and issues and move toward more complicated ones.

1. Reinstall application

   If you are receiving Downloader.dll not found when trying to run just a single certain application, reinstall the application, there is the possibility that the application has somehow corrupted downloader.dll during the installation process. Reinstalling might fix the problem.

2. Run SFC scan

   SFC scan is the tool meant to scan all files and fix any corrupted ones. To run this tool, open the command prompt in administrator mode by right-clicking on the windows start button and then left-clicking on the command prompt (admin). When you are in command prompt type in SFC /scannow and let the whole process finish.

3. Update device driver

   If previous steps have not provided results, go to device manager and visually check is there a device with an exclamation or other sign next to it, if there is, right-click on it and choose update driver.

Hello everyone and welcome to our new Windows 10 tips and tricks article. Today we will be focusing on small Windows tricks that could prove very useful in everyday workflow and hopefully make your life easier by implementing them in your daily routine. I am very excited to share this with you all and I hope that you will use them from now on. That being said let us begin.

Tip 1: Minimize all open windows except one.

Daily to the daily routine can involve many opened windows on a desktop and sometimes things can get messy, if you want to minimize all windows to the taskbar except one do this: Click on one window thus selecting him, click and hold the left mouse button on that windows title bar, now shake it up and down and all other windows will escape down to taskbar leaving only one you are shaking on the desktop.

Tip 2: Open the Secret Windows menu.

Through our tutorials on various errors and fixes, we have used this method already but here it is again since it is worth mentioning. If you want to open the command prompt easy and fast, or device manager, event viewer, shut down, etc. In order to open this secret menu all you need to do is press ⊞ WINDOWS + X.

Tip 3: Create an Event without opening the calendar application.

You can easily create an event without opening a calendar application, all you have to do is left-click on the clock in the taskbar, click once on a date for the event, and under calendar in event field type event description. The event will show in the calendar application like it was entered there.

Tip 4: Taking a screenshot.

This one is my favorite and it speeds up workflow very very much. Typically you take screenshots by pressing the PrntScr button on your keyboard. Now, the problem with this approach is that the screen is placed in computer memory, in the clipboard and you will need another picture processing application in order to save it. Now if you would press ⊞ WINDOWS + PrntScr, the picture would be automatically saved in your pictures/screenshots folder. And if that is not enough, you can press ⊞ WINDOWS + S + SHIFT to start Snip & Sketch tool and select the area which you would like to screen capture, this method will also place pictures in the clipboard.

Tip 5: Open pinned applications in your taskbar with your keyboard.

We have covered this one in our Windows keyboard shortcuts tips and tricks here, but if you missed that article here is the tip again. By pressing ⊞ WINDOWS + number 1,2,3...0 you will start the application from your taskbar counted from left to right.

Tip 6: Check how much Hard drive space installed applications are taking.

Applications and temporary files grow over time and can slow the system and cause some other unpleasant experiences. Go to Settings > System > Storage, click on the Hard drive on which you have installed applications, and see how much each one is taking, you can remove it from this screen also freeing some space.

Tip 7: Remove ads from the START menu.

Windows has so-called suggestions in the START menu, no matter how Microsoft is calling them, let's face it, they are ads and in my opinion, they do not belong in my START menu. To turn them off, go to Settings > Personalization > Start. Toggle the setting called Show suggestions occasionally in Start to the off position.

Tip 8: Shut down background applications.

Some applications are running in the back and are taking system resources and can send telemetry information, if you want to turn them all off go to Settings > Privacy > Background apps. To stop all apps from running in the background, toggle Let apps run in the background to off. You can choose which apps to run in the background individually by going down the list on the same page.

Tip 9: Use Background scrolling.

Did you know that you can scroll on inactive windows? To do this, just hover over the inactive background window and roll your mouse when the content of the window should be scrolling even if it's not one you are working on. If by any chance this is not happening, go to Settings > Devices > Mouse, and toggle Scroll inactive windows when I hover over them to On.

Tip 10: Show file extensions in File Explorer.

By default extensions of files are hidden, so let's say that for example, you are in a folder with pictures, you have plenty of pictures there but you do not know are they JPG or JPEG for example, do not worry there is an easy fix to bring showing extensions back. Start File Explorer, click on view top menu item, click on options, Uncheck the box that says Hide extensions for known file types. Click Apply, and OK.

Tip 11: Use focus assist.

Set it up by going to Settings > System > Focus assist. Choose from three options: Off (get all notifications from your apps and contacts), Priority (see only selected notifications from a priority list that you customize, and send the rest to your action center), and Alarms only (hide all notifications, except for alarms). You can also choose to automatically turn this feature on during certain hours, or when you're playing a game.

Tip 12: Rotate your screen.

If you have multiple screens set up or you have the rotatable screen press and hold CTRL + ALT together, then use a directional arrow to flip the screen. The right and left arrows turn the screen 90 degrees, while the down arrow will flip it upside down. Use the up arrow to bring the screen back to its normal position.

Tip 13: Enable GOD mode.

Have you always felt limited with Windows settings? Don't be, Right-click on the desktop and select New > Folder. Re-name the new folder with this bit of code: GodMode.{ED7BA470-8E54-465E-825C-99712043E01C} To enter the "God Mode" window, double-click the folder.

Tip 14: Use Virtual Desktops.

Click on Task View (the icon next to the search box). This will separate all your open windows and apps into icons. You can then drag any of them over to where it says "New desktop," which creates a new virtual desktop. Once you click out of Task View, you can toggle between virtual desktops by pressing the ⊞ WINDOWS + CTRL + right/left arrows. To remove the virtual desktops, just go back into task view and delete the individual virtual desktops, this will not close out the apps contained within that desktop, but rather just send them to the next lower desktop.

Tip 15: Customize the command prompt.

Yes, you can customize the command prompt, in order to do so, open it and right-click on its title bar, choose properties and go wild. Special badge if you make it look like commodore 64 BASIC.

Tip 16: Dictate, not type.

If you have speech recognition ON, pressing ⊞ WINDOWS + H will bring up a voice recorder, just speak and see how you can easily "write" emails, etc.

Tip 17: Use sandbox.

In Windows you have a sandbox option, which will open another Windows instance inside Windows, what do you need this? Well once the sandbox is closed everything in it is closed and if you catch the virus or other dangerous software, closing the sandbox will destroy it not affecting your actual Windows. Use it for safety testing and enjoy an easy life. Enable Windows Sandbox inside the Control Panel.

Tip 18: Use a hidden game bar.

Press the ⊞ WINDOWS + G, you can pull up the new-and-improved Game Bar. This lets you switch your Windows PC into gaming mode, which pools system resources to the game, turns off notifications, and lets you record and broadcast your gaming, along with added panels for controlling your audio, monitoring FPS, and tracking achievements. And that's it, Our 18 tips and trick to make your Windows 10 life easier, more productive, and overall more enjoyable. I certainly hope you have enjoyed reading this article same as I was writing it. Until next time if I do not see you, good afternoon, good evening, and good night.

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.

There are cases when you want to undo some changes you’ve made to your computer and to do that you have to perform the System Restore task. However, if you encounter an error that states “To use System Restore you must specify which Windows installation to restore”, when doing so, read on as this post will help you fix the problem. This kind of error in System Restore could be due to corrupted files in the system. There are also situations where you are not able to boot up once you encounter this error which could be a big problem. On the other hand, this error might have something to do with corrupted BCD files. Whatever the cause is, here are some potential fixes you have to try.

Option 1 – Try to run System File Checker offline

Like pointed out, since the error might be due to corrupted system files, you can try to run System File Checker offline. How? Refer to these steps:

• You need to go to the Advanced Startup Options and from there select Troubleshoot.
• Next, select the Advanced Options and then Command Prompt.
• After opening Command Prompt, type the commands given below and tap Enter right after you type each one of them.
  • Cd /
  • Dir

• If you can see the “Users” folder, that is your system’s drive. However, if you can’t see it, you can just change the drive-by assigning “D” as its alphabet volume.
• Then execute this command where “C” is the system drive: sfc /scannow /offbootdir=C: /offwindir=C:Windows
• Now repeat the given steps sequentially.

Option 2 – Try to run DISM tool

You can also run the DISM tool to repair the potentially corrupted system image. First, you have to check the health of the system like checking the integrity of the system files and Windows services. To run DISM, follow the given steps below sequentially.

• Open Command Prompt from the Advanced Startup options.
• After that, execute this command where “C:” is the system volume: DISM /Image:C:Windows /Cleanup-Image /RestoreHealth /Source:C:WindowsWinSxS
• If you encounter an error after executing the given command, insert the Windows USB or DVD and then execute this next command where “E:” is the USB or DVD drive: DISM /Image:C:Windows /Cleanup-Image /RestoreHealth /Source:esd:E:SourcesInstall.esd:1 /limitaccess
• In some cases, “install.esd” would be “install.wim” and in such case, you have to modify and execute this command: DISM /Image:C:Windows /Cleanup-Image /RestoreHealth /Source:wim:E:SourcesInstall.wim /limitaccess

Option 3 – Try to repair corrupted BCD

As mentioned, the error could also be due to corruption in BCD, and to fix it, you can use Bootrec.exe – a built-in command-line tool used to troubleshot issues related to boot up and Windows Startup. Before you run this tool, make sure that you have inserted a bootable USB or DVD into your computer. Once you have that covered, follow these steps:

• You need to go to the Advanced Startup Options.
• Then click on Troubleshoot.
• Next, select the Advanced Options and then Command Prompt.
• Once Command Prompt has been pulled up, enter each one of the following commands and in the sequence that they are given to rebuild BCD files and repair MBR files:
  • Bootrec /Fixmbr
  • Bootrec /FixBoot
• After you execute the commands given above, you should see a confirmation message that says, “The operation completed successfully”.
• Now type the “Bootrec /RebuildBCD” command to rebuild BCD.
• Finally, close Command Prompt and then restart your computer to successfully apply the changes made.

Option 4 – 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 in 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.

Option 5 – Try to use the Windows Recovery Environment

If the four options given above didn’t help fix the problem, you could try running Windows Repair and a Windows bootable USB or DVD.

• First, insert the bootable USB or DVD and boot into it, and select the “Repair your computer” option.
• Next, once you see the manufacturer logo on your computer, tap the key to enter into Windows Recovery Environment.
• After that, change the Boot sequence to DVD drive under the UEFI Firmware settings and restart your computer.
• Once your computer has restarted, select the boot order and make changes accordingly as displayed in the BIOS.

Option 6 – Try running System Restore in Advanced Startup Options

Since you probably can’t boot into your Windows 10 computer, you can try to run System Restore again in the Advanced Startup Options.

• Boot your computer into the Advanced Startup Options screen.
• From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
• Now select Troubleshoot > Advanced Options > Command Prompt.
• After that, type “exe /OFFLINE:C:Windows” and hit Enter to execute the command which will start the System Restore process.

Note: You need to replace “C” with the drive where Windows Installation is located.