When you get the “HTTP Error 304 Not modified” error in Google Chrome, Mozilla Firefox, or Microsoft Edge, there can be lots of reasons why you’re getting this error. The HTTP Error code 304 means redirection, technically. It could be that the DNS has some issues or the cache is already reusing the existing information to look for a website or it could also be that your browser might be infected.
In this post, we will show you what you can do to fix the “HTTP Error 304 Not modified” error when you are not able to open a website on your browser. Here are the exact details of the error message:
“This status code is returned if the client has already downloaded resources since the last visit and is displayed to notify the client browser that the requested resources is already stored in the browser cache which hasn’t been modified.”
Follow each one of the given fixes below to resolve the issue.
Option 1 – Clear the browsing data on your browsers
The first thing you can try is clearing the browsing data on your browsers.
Microsoft Edge:
Open Microsoft Edge.
Then click on the three horizontal dots to open the menu.
From there, click on Settings. And under Settings, click the “Choose what to clear” button under the Clear browsing data section.
Next, check all the checkboxes and then click the Clear button to clear the browsing data in the Edge browser.
Restart Edge.
Google Chrome:
Open Chrome and then click on the three vertical dots located at the top of the window.
Then click on Settings.
After that, click on Advanced. And from the Privacy and Security section, click on the “Clear browsing data” option.
Now click on the CLEAR DATA button.
Restart Chrome.
Mozilla Firefox:
Open Firefox and then click on the three horizontal lines to open the menu.
From there, click on Options.
Next, select Privacy & Security.
After that, click on the Clear Now button under the Cached Web Content section and then click the Clear All Data button under the Site Data section.
Restart Firefox.
Option 2 – Flush DNS and reset the TCP/IP
There are some websites that don’t resolve since the DNS in your computer still remembers that old IP address. And so you need to flush the DNS as well as reset the TCP/IP on your computer.
Click the Start button and type in “command prompt” in the field.
From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
ipconfig /release
ipconfig /all
ipconfig /flushdns
ipconfig /renew
netsh int ip set dns
After you key in the commands listed above, the DNS cache will be flushed and the TCP/IP will reset.
Option 3 – Try using the Google Public DNS
Changing your DNS to Google Public DNS might also help you in fixing the “HTTP Error 304 Not modified” error. To do so, follow the steps below.
The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
Next, click on the “Change Adapter Settings” option.
After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
Right-click on your network connection and click on Properties.
Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.
Option 4 – Run Cleanup Tool and disable Extensions
You might also want to run the Cleanup Tool in Chrome if you are using this browser as well as disable all the extensions as some of them, if not all, might be the reason why you’re getting the “HTTP Error 304 Not modified” error.
The Windows 10 Telemetry and Data Collection features are auto-enabled and they collect all sorts of user activity and sends it to Microsoft. Microsoft says that the data collected only enhances the overall user experience and Windows functionality better but the number of data breaches happening across the globe has forced users to be extra cautious about their data privacy. So naturally, from stronger passwords and other services management, it is only logical to turn off Windows data gathering.
To do so:
Press ⊞ WINDOWS + R to open the run dialog.
In the Run dialog type: taskschd.msc
Press CTRL + SHIFT + ENTER key combo to open Task Scheduler in admin mode.
On the left pane, navigate to the: Task Scheduler Library > Microsoft > Windows > Customer Experience Improvement Program
At the location, on the middle pane, right-click on the task named Consolidator and select Disable from the context menu...
Repeat the process with all other tasks listed in the middle pane.
Qtcore4.dll is a dynamic link library file that helps Microsoft Windows in loading several key components of the system.
The Qtcore4.dll error occurs when the Qtcore4.dll file cannot be loaded to run the application supported by this .dll file. The Qcore4.dll missing error message may occur while booting your system or launching a certain program.
It is a blue screen of death error type.
The Qtcore4.dll error code is often displayed as:
BLUE SCREEN ERROR - QtCore4.dll Not Found
Filei386QtCore4.dll could not be loaded. The error code is 7. Setup cannot continue. Press any key to exit.
Solution
Error Causes
This error code is triggered by a variety of reasons such as:
Windows file allocation file gets damaged
Your computer BIOS (Basic Input/Output System) are misconfigured
The Qtcore4.dll file gets corrupt
Registry gets damaged and corrupt
Non-Microsoft program not running in tandem with Windows
Malware attack
Improper hardware driver software
It is advisable to fix the Qtcore4.dll error code immediately as this error can pose serious threats to your system. Qtcore4.dll error can lead to system breakdown.
Further Information and Manual Repair
Here are some ways of fixing the Qtcore4.dll error on your system:
1. Re-install the Program Causing Qtcore4.dll error message to pop up
As dll files are shared files sometimes due to program deletion and installation .dll file settings can get misconfigured, damaged, and corrupt. In such a scenario, you can try reinstalling the program that is causing Qtcore4.dll error message to appear on the screen.
2. Reconfigure your Mis-configured BIOS
If BIOS misconfiguration is the cause of this error code on your system, then try reconfiguring your system’s misconfigured BIOS.
To do this boot the computer and then press the BIOS designated keys to enter the BIOS. The keys may vary from manufacture to manufacture but typically, the setup keys are F2, F10, F12, and Del.
Once you figure out the setup keys, press them rapidly when booting the computer.
After successfully hitting the setup keys, the BIOS will load and you will see the BIOS setting menu on your screen. Adjust settings. Go to SATA Operation and change RAID AHCI to RAID ATA. Save changes and then exit.
3. Scan Your PC with a Registry Cleaner and an Antivirus
However, after adjusting the BIOS if the error still pops up on your screen, then this indicates the problem is bigger than you think.
It triggers either malware attack or registry corruption. If these are the underlying causes for the Qtcore4.dll error on your system then you need to scan your PC with a registry cleaner and an antivirus.
Registry is the main database of your system; if this gets corrupt it is most likely to result in system failure and valuable data loss.
And as for malware, the biggest concern is data security threats. Today’s advanced and lethal malware like viruses and spyware can give easy access to hackers to enter your system from a remote location, browse through your confidential and private data and manipulate it to their advantage.
This has led to a surge in various types of cyber crime, data breaches, and identity theft cases over the years.
To avoid all this while resolving the error code Qtcore4.dll on your PC, registry cleaning and repair and antivirus scan are needed.
You can either download 2 separate tools on your system to scan your PC which by the way will take a lot of time and increase your chances of the system slow down or you can download Restoro.
Why Restoro?
Total System Care is an advanced, user-friendly, high, and multi-functional repair.
It is deployed with a powerful and intuitive registry cleaner. It also functions as a system optimizer. It spares you from downloading numerous tools to address and resolve different errors on your PC.
It is your one-stop solution for not only Qtcore4.dll problems but practically all PC-related issues.
The registry cleaner utility detects all the malicious, unnecessary, and obsolete files overloading and corrupting your RAM.
This includes junk and temporary files. It wipes them out thus clearing your disk space. Simultaneously, it also repairs the damaged and misconfigured dll files including the Qtcore4.dll file, and fixes the corrupt registry.
The privacy error utility has the properties of an antivirus. It detects and removes malware, viruses adware, and spyware from your system in seconds.
Total System Care resolves the Qtcore4.dll error on your system and boosts the performance of your system. It has a simple and neat interface which makes it quite easy for users to operate it, even those who are not technically adept.
It is compatible with all Windows versions
Click here to download Restoro and repair the Qtcore4.dll error on your PC.
As you know, Microsoft constantly releases new updates with the main goal of fixing bugs as well as deliver users with new and exciting features. However, there are times when the latest update comes with an unwanted bug. One of these bugs is an error message saying, “Low Disk Space. You are running out of disk space on Local Disk (G:). Click here to see if you can free space on this drive.” So if you have recently installed a Windows 10 update, then you’ll most likely see a completely new drive on your computer which will appear right after the installation of the update and you’ll also start seeing the aforementioned error message.
It gets irritating as this error message keeps on popping up even if you still have a lot of free space on your other drivers. Obviously, the main reason why this error message pops up all the time is the bug brought along by the Windows Update. This bug unhides the recovery partition drive and allocates it a drive letter which is why you are seeing a new drive in your computer. Thus, you can get rid of the pesky error message by simply removing the letter of the new drive. Just remember that you must not delete anything from the recovery partition drive nor format the drive. Formatting or deleting the recovery partition drive can heavily affect the recovery of Windows since the data on the drive is used by the Windows Recovery Environment or your system’s manufacturer.
A lot of users have reported that removing the drive letter has resolved the issue. And if you worry that removing the drive letter will delete the drive, you are mistaken. This solution is basically harmless and is proven effective to make the notifications go away.
Carefully follow the instructions below to get rid of the Low Disk Space notification by removing the drive letter.
Step 1: Tap the Windows key once.
Step 2: Next. In the Windows Start Search, type in “command prompt” and right-click on Command Prompt from the search results and select the “Run as administrator” option or you could simply tap Win + R keys and then input “cmd” and hit Enter to open Command Prompt.
Step 3: After opening Command Prompt, type in “diskpart” and tap Enter.
Step 4: Next, type in “list volume” and tap Enter. After that, you will see a list of drives.
Step 5: Take note of the letter associated with the newly created drive.
Step 6: Afterwards, type in “select volume <drive letter>” and tap Enter. Take note that you must replace the <drive letter> with the drive letter you’ve found in Step 5.
Step 7: Now type in “remove letter=<drive letter>” and then tap Enter. Once again, replace the <drive letter> with the letter you took note of in Step 5.
Facebook has an algorithm inside it that can recognize your face in pictures and videos which is meant to help people tag friends when they upload media into Facebook. It is a neat feature meant to help all Facebook users but what if we do not want to be detected in pictures and videos? What if we do not want to be tagged?
If you are one of the Facebook users that do not wish to be detected and recognized by Facebook in media keep on reading to find out how you can disable this option.
Open the Facebook website and log into your account.
Click on the arrow visible in the top menu bar.
Select the Settings & privacy option.
Click on the Settings option.
Switch to the Face recognition tab on the left-hand side.
Click the Edit button.
Select No from the drop-down list.
And you are done, you do not need to log out or restart facebook in order for changes to have an effect. Now you are free from face recognition and detection.
Spying via some malicious app on the target phone is not a new thing but it can be very uncomfortable and even against the law in some countries.
Infecting the target phone can be done in various ways, another person can intentionally download and install applications on it, and you can install them via some phishing attacks or by an online scam. Once installed this piece of software presents a very serious invasion of privacy since it can track text messages, track phone location in real-time, record calls in real-time, eavesdrop on calls, take control of the camera and microphone, and many other applications.
Here are some common symptoms of mobile phones infected with spyware.
Symptoms of spyware
Random reboots Slow performance Strange text messages Overheating Unusual high data usage Non-familiar apps in the app list The fast drain of the battery Long shutdown time Strange interference and sounds during calls Signs of activity during standby mode
If your phone exhibits any of these symptoms you might have a spyware app installed and running on it.
Common spy apps
There are many apps that have been designed to spy on people that can be downloaded in the app store or on Google Play today. Most of these spyware apps are aimed at parents wanting to keep an eye on and protect their children. However, these can be used by anyone in order to spy on a target person via their phone.
Below is a list of common apps that can be used to spy on you. Many spyware apps require a phone to be ‘jailbroken’ or ‘rooted’ before being installed, this is when the phone’s operating system is changed to allow the phone to become unlocked and customizable.
mSpy : An undetectable spying app for iOS devices. It can be used to read your chats, see your location, view your email, check your call history, record your keystrokes, and more.
Spyera : This app requires rooted and jail-broken iPhones to work. It can go undetected and monitors phone calls and your call history. It even allows call recording and eavesdropping on live calls.
Flexispy : Flexispy prides itself as the #1 phone monitor for parents and can monitor everything from calls to social texts.
Umobix : This powerful spyware app has a dashboard that allows users to easily monitor someone’s location, calls, texts, keystrokes, all major social media, and more. You can detect Umobix because it heats up the infected phone and greatly affects the battery life of the infected device.
Ikey Monitor : Although it requires the device to be rooted for Android or jailbroken for iPhones, this spy app captures keystrokes, passwords, and screenshots, allows for call recording and supports multiple languages.
Clevguard : Available for both iOS and Android, Clevguard allows users to track GPS and Wi-Fi locations, capture screenshots remotely, and more. Due to a recent update, the spy app drains the target phone’s battery significantly.
Remove spyware from your phone
If any of the beforementioned apps are present on your phone you need to remove them right away.
Go to your phone settings and remove the malicious applications, then download some protection suite and scan the whole phone for any other trace of software remains or other malware apps.
In case you don’t know, the .Net Framework is a programming infrastructure introduced by Microsoft. You will need it to run on lots of services and applications. Note that most of the applications that require the .Net Framework are packed with their installation files which is why it will be installed automatically on your computer when you install an application. However, there are instances when you’ll get an error message saying, “The .NET Framework 4.7 is not supported on this operating system” while trying to install the .NET Framework as a standalone service.
The very reason why this error message appears is stated in the error message itself. Although the .Net Framework is supported on Windows 10, it is not actually compatible with some other Windows 10 versions. So it is most likely that you are seeing this error message because the .Net Framework in your computer is not compatible with the Windows 10 version you are running. Since that’s the case, you need to update Windows 10 to fix the problem.
Updating your Windows 10 computer is the only solution you can try to fix this problem. Thus, it is advised that you check for Windows Updates even if you are now using the latest version of Windows 10. And since the issue is caused by an incompatible operating system version, once you install the exact version of Windows 10 required by the .Net Framework, the problem will be fixed. Simply follow the steps given below to do so.
Step 1: Tap the Win + R keys to open the Run dialog box.
Step 2: After that, type in “winver” in the field and tap Enter.
Step 3: Next, your Windows 10 version should be given in the new window that appears. Take note that the number after the Version which is in the second line is your version number of Windows 10. And that the number must be 1507 or 1709. The first two digits in these numbers are the year while the second two represent the month when the update was released. So if you are running a 1709 version, this means that the Windows 10 version you are using was released in September 2017.
Step 4: The next thing you have to do is to make sure that you have the Windows 10 version that’s compatible with the .Net Framework. To verify, you need to click here and click on the System Requirements.
After opening the link, take a look at the Supported Operating System section where it says, “Windows 10 Anniversary Update” and “Windows 10 Creators Update”. Since there are users who are not familiar with the version numbers related to both the Anniversary and Creators updates, refer to the list given below.
November Update (1511)
Anniversary Update (14393)
Creators Update (1703)
Fall Creators Update (1709)
Spring Creators Update (1803)
As you can see, the Creators Update has version 1703 while the Anniversary Update has version number 14393 so if you are using a version lower than the 14393 version then it’s no wonder you aren’t able to install the .Net Framework 4.7 on your Windows 10 PC. Now all that’s left to do is to update your Windows 10 version and make sure that you will be updating it to the latest version available and then try installing the .Net Framework again.
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.
For PC users that are blind or have low vision, the Narrator accessibility feature in Windows 10, lets you use your PC without a display or mouse to complete common tasks – it reads and interacts with things on the screen, like text and buttons. The narrator can be used to read and write an email, browse the internet, and work with documents.
In Windows 10, there are a lot of options for Narrator that you can customize. You can change its keyboard shortcuts, personalize Narrator’s voice, enable Caps Lock warnings, and more. You can choose the voice for the Narrator, adjust the speaking rate, pitch, and volume.
To change the default audio output device used to play the voice of the Narrator in Windows 10:
Press the ⊞ WINDOWS + I
From the Settings menu, click Ease of Access.
Click Narrator on the left pane.
In the Narrator window, on the right pane, toggle the button to On to enable Narrator if required.
Scroll down to the Personalize Narrator’s voice section.
For the Select where you hear Narrator’s voice option, click the drop-down and select the audio output device you want from the list. Please know that you will not be able to choose if you do not have multiple audio output devices connected to your Windows 10 computer.
Exit Settings when done.
If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.
Where all have been there, we are downloading something and for any kind of reason chrome closes, internet breaks, etc. And our download is interrupted and gone forever, and we need to start again.
You will be glad to hear that chrome has side a download manager which tracks each download you made and you can use this manager to resume interrupted downloads.
Please note that some websites have certain scripts that will prevent you to resume interrupted downloads, in this case, using chrome's download manager will not work and you will have to start the download again.
All of this being said, if your download has been interrupted, and went away, pin Chrome press CTRL + J to open download manager, find your interrupted download, and press the resume button.
That's it, you have successfully resumed your download.
One of the most useful and powerful built-in utility in Windows 10 is the DISM tool. This tool can be used with the Command Prompt command line as well as for other purposes. However, it is not without flaws and there are times when you may encounter some issues while using it.
One of the problems you can get while using the DISM tool is the following error:
“The scratch directory size might be insufficient to perform this operation”
This kind of error in DISM occurs when the DISM command is executed from the Windows Recovery Environment due to the limited size permissions of a delivery where the operating is being performed. To fix this DISM error, you need to follow the instructions laid out below.
Step 1: First, tap the Win + R keys to open the Run utility and then type “cmd” in the field and tap Enter to open Command Prompt.
Step 2: Next, you have to specify a scratch directory that contains the Windows folder and to do that, you can either use the DIR command or the BCEDIT command. So in the elevated command prompt type and enter “dir” or “bcedit”.
Step 3: After that, you will see a list of folders inside the C: partition. Now you have to create a folder named “scratch” inside the partition. To do so, execute the following command:
mkdir C:Scratch
Note: The command you just entered will create a directory inside the root of the C: partition named Scratch.
Step 4: Now that you’ve created the Scratch folder, note that each time you run any of the DISM commands, you have to enter the following code snippet in them:
/ScratchDir:C:Scratch
Note: For instance, if you are using the DISM tool to repair the offline Windows image, instead of executing the “Dism /Online /Cleanup-Image /RestoreHealth” command, you now have to execute the “DISM /Image:C: /ScratchDir:C: Scratch /Cleanup-Image /Restorehealth” command. And if you want to remove a selected installed update package, you can use the “DISM /image:C: /ScratchDir:C:Scratch /Remove-Package /PackageName:Package_for_RollupFix~31bf3856ad364e75~amd64~~16299.196.4.9” command. Keep in mind that the mentioned package is only an example. And lastly, you also have to replace the drive letter in the new code snippet when you execute the commands given above.