A Guide to Fixing Corefoundation.dll Error on Your PC

As you know, Airplane mode is the one that gets devices in such a state where all the wireless connections are turned off. However, recently, there are some reports from users claiming that the Airplane Mode turns on by itself in their Windows 10 computers. This kind of problem could be due to an error with the Network driver, third-party applications, and many other factors. Other users also reported that the Airplane Mode automatically flickers, while some stated that they aren’t able to toggle the option for Airplane mode. There are several options you can try to resolve this problem. You can try to configure the Power Management settings for the driver or run the Network troubleshooter. You could also roll back, reinstall or update the Network driver, as well as troubleshoot the problem in a Clean Boot State. For more details, follow each one of the given options below.

Option 1 – Try configuring the Power Management settings for the driver

The first thing you can do to fix the problem is to try configuring the Power Management settings for the driver. How? Refer to these steps:

• Tap the Win + X keys to open the WinX menu and from there, select the Device Manager to open it.
• Next, expand the Network adapters and select the entry for your Wi-Fi hardware.
• After that, right-click on it and select Properties.
• From there, go to the Power Management tab and uncheck the “Allow the computer to turn off this device to save power” option.
• Once done, restart your computer and see if it has fixed the problem.

Option 2 – Try to run the Network troubleshooter

To run the Network Troubleshooter, refer to these steps:

• Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
• Next, scroll down and select the “Network Adapter” option from the right pane.
• Then click on the Run Troubleshooter” button.
• After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
• Restart your computer.

Option 3 – Try to update, rollback or reinstall the Network adapter drivers

The next thing you can do to resolve the problem is to update the Network Adapter drivers by following these steps:

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand them.
• Look for the Broadcom Network Adapter and right-click on it, as well as other network adapters that have an exclamation icon, and update them all.
• Restart your PC and see if it helped in fixing the problem.

Note: If updating the network drivers didn’t help in fixing the problem, you can also try to roll back the very same drivers from their previous versions and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly. To reinstall the network adapter drivers, refer to these steps:

• 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.

Option 4 – Try to reset the Network Adapter

You can also try to perform a Network Reset to resolve the problem. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

Option 5 – Try putting your computer in a Clean Boot State

You can also troubleshoot the problem in a Clean Boot state. It could be that there are some third-party applications in your computer that are causing the Airplane Mode to behave in a strange way. So, to isolate this possibility, you need to boot your computer in a Clean Boot State be using these steps:

• 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.)
• After you’ve set your computer into a Clean Boot State, try to observe if the Airplane mode is now back to normal or not.

Microsoft has been bringing new lock-screen features with every iterative feature release of Windows 10 in order to improve user experience. However, Windows 10 users have different opinions regarding it. Some users are pleased with it while some users simply do not like it. So if you are one of the users who seem to not approve of this feature, read on as this post will be about enabling or disabling the Console Mode sign-in feature in Windows 10. Before you proceed, take note that you will not be able to use your mouse pointer in this Consol Mode login screen and you can only use your keyboard to navigate around various options. You might also want to create a System Restore point just in case. To enable or disable the Console Mode sign-in in your Windows 10 computer, refer to the given steps below. Step 1: Tap the Win + R keys to open the Run dialog box. Step 2: Then type in “Regedit” in the field and tap Enter to open the Registry Editor. Step 3: Next, navigate to the following registry path:

ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionAuthenticationLogonUITestHooks

Step 4: From there, look for a DWORD named “ConsoleMode”. If you don’t see this DWORD, you can just create a new DWORD and name it as “ConsoleMode” and make sure that its base is set to Hexadecimal. Step 5: After that, double click on ConsoleMode and change its value to “0” to disable it and “1” to enable it. Step 6: Now restart your computer to apply the changes made. Like pointed out, you can only use your keyboard when you’re in the Console Mode login window or screen. You can just use the ESC button to go back to the menu while you can utilize the arrow keys so you can go through the options that are mostly vertically arranged and the Enter key to select an option. In the Console Mode, sign-in using the Passwords and PINs worked efficiently.

Bad or good news, depending on your view comes from RIOT for their game Valorant. It seems that Riot has decided to enforce Windows 11 TPM 2.0 feature into Valorant running on Windows 11 and there is a rumor that it will be de facto standard and that it will move to Valorant in general no matter on which system it runs. Furthermore, there is a rumor circling around that other developers are also talking about implementing TPM 2.0 requirements so they can harvest advanced security features of Windows 11 in order to prevent hacks and other cheats in their games. This is an interesting point to stand on, on one side, sure, advanced features that will prevent cheating and hacking is a great thing. On other hand denying access to many computers that do not support TPM 2.0 and removing them from the game can be a permanent loss of customers and therefore loss of money. It is a risk to be sure and I am not really sure that alienating gamers is a good choice for long-term income, especially when you will be able to install Windows 11 on an unsupported PC as stated by Microsoft. We will all see how this Riot decision will reflect on their business, as not a big Valorant player myself I am not impacted too much with this decision, but it will be interesting to see if others will indeed go with this trend or they will decide to wait a while until much more PC’s are upgraded.

Bttray.exe Application – What is it?

Bttray.exe is basically a Bluetooth Tray Application. Bluetooth Tray Application is developed by WIDCOMM. It provides a system tray icon that allows users to see the status of their Bluetooth connections at a glance. It allows you to easily access the configuration and settings for the Bluetooth products enabling you to change the configuration of the Bluetooth devices. The bttray.exe application error may pop up on your computer screen due to some issue with the Bluetooth software. The process fails to initialize and therefore stops working. Bttray.exe application error code is  displayed in the following format:

• “BTTray.exe can’t initialize (0xc0150004).”
• “BTTray.exe – System Error”

Though this is not a fatal or critical computer error it is advisable to resolve it otherwise it will hamper your access to Bluetooth software and cause you a great deal of inconvenience.

Solution

Error Causes

Bttray.exe application error code may be triggered due to one of the reasons stated below:

• Bttray.exe application is damaged
• Bttray.exe is accidentally removed from your PC
• The Bluetooth software or driver becomes problematic.
• Some modules that run by the process are corrupt
• Malware infection
• Invalid registry entries

Further Information and Manual Repair

If you experience a bttray.exe application error code on your system, it is recommended to fix it right away. To resolve this error you don’t have to be a computer programmer or a technical whiz or have to hire a professional and spend hundreds of dollars in repair. It is easy to fix, simply follow the manual methods given below:

Method 1- Reinstall Bluetooth Software

If the Bluetooth Software is damaged or outdated, the bttray.exe will also not work. If this is the cause of the error code, then simply reinstall Bluetooth software on your system. To do this, first, uninstall the current software and then download the latest version of the Bluetooth Software on your PC. To uninstall click start, go to the control panel, and then programs. Now select Bluetooth software and click uninstall to remove it. After that, install the latest version and update it. To activate changes

Method 2: Scan for Malware

Sometimes the bttray.exe application error code may pop up due to malware and viral infection. To fix it, download a powerful antivirus. Scan and remove malware to resolve.

Method 3: Clean Registry

The registry basically saves all the activities being performed on the PC including junk and obsolete files. If the registry is not clean frequently, unnecessary files like cookies, junk files, temporary files, and internet history can take up a lot of space and cause the registry to damage. Due to this error code like the bttray.exe application can also pop up. To resolve, clean the registry. You can do it manually but that may be difficult and time-consuming if you are not a computer programmer. However, a good alternative would be to download Restoro. This is a user-friendly and next-generation PC Fixer deployed with multiple utilities like a registry cleaner and an antivirus. Simply run it to remove viruses and clean the registry. Click here to download Restoro and resolve the bttray.exe application error now!

Universal Windows Platform (UWP) applications are the modern application in the windows store that can be used in all the Window devices like Xbox, Hololens, Tablet, PC or Phone. Basically, UWP provides a common platform for every device that runs Windows 10. When attempting to login into these applications and receive this error:

Can’t sign in with a Microsoft account This program is blocked by group policy. For more information, contact your system administrator. 0x8000704ec

Then this post is for you. We will guide you on how to easily resolve issues, please follow the steps provided.

1. Local group policy editor solution

   • Press ⊞ WINDOWS + R to open the Run dialog.
   • In the Run dialog box type gpedit.msc and press ENTER to open Group Policy Editor.
   • Inside the Local Group Policy Editor, navigate to the path below:
   Computer Configuration > Windows Settings > Security Settings > Local Polices > Security Options
   • On the right pane, double-click on Accounts: Block Microsoft accounts to edit its properties.
   • Under Local Security Setting tab, click on the drop-down and select This policy is disabled.
   • Click Apply > OK to save the changes.
   • Exit Group Policy Editor.

2. Registry editor solution

   As always, it is highly recommended to make a backup of the registry editor just in case that something goes wrong.
   • Press ⊞ WINDOWS + R to open the Run dialog.
   • In the Run dialog box, type regedit and hit ENTER to open Registry Editor.
   • Navigate to the registry key path below:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
   • At the location, on the right pane, identify the NoConnectedUser key. The key value might be set to either 1 or 3.
   • Now, double-click the NoConnectedUser entry to edit its properties.
   • Input 0 in the Value data field and hit Enter to save the change.

There are times when you encounter some issues while your Windows 10 computer. One of the errors you can encounter in the update process is the “Something went wrong, error code 0x8007042B”. This kind of error might be caused by several reasons and it could also pop up in lots of cases like upgrading to a new feature update or a new build using the Media Creation tool or Windows Update Assistant. There are times when the Windows Update error code 0x8007042B is followed by another error code like 0x2000d. Whatever the extra error code that follows, the core issue still remains the same. To resolve the problem, here are some options that could help. And while going over these troubleshooting tips, you have to keep clicking the Update button right after you carry out a troubleshooting option.

Option 1 – Try to restart the Background Intelligent Transfer Service

The Background Intelligent Transfer Service or BITS is a part of the Windows Update service and is the one that manages the background download of Windows Update, as well as scans for new updates and so on. And if Windows Update is experiencing some problems, you can try restarting BITS but make sure that you have admin privileges to do so.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter to open Windows Services.
• From the list of Services, look for the Background Intelligent Transfer Service and double-click on it to open Properties.
• After that, you need to set the Startup type to “Automatic (Delayed Start) and click on Apply.
• Now click the Stop button to stop BITS and then click the Start button to restart the service.
• Click OK to save the changes made and then restart your PC.

Option 2 – Try creating Windows 10 ISO media

In this option, you will have to create a Windows 10 bootable media and use it to install the latest Windows 10 version. The most user reported that this option works and the reason why it does have something to do with the Windows Update client since the Windows Updates downloaded from the regular Windows Update client seems to create issues such as the Windows Update error code 0x8007042B. However, issues like this one don’t occur when the very same Windows Updates are downloaded and installed via an ISO file. Take note that when using a Windows ISO file, you will be asked to choose what you want to do with the previous settings and apps. A lot of users opted for the “Not to keep the old Windows settings” option which has resolved the issue. So if you want to keep the previous settings then you must try to update Windows first while keeping the old settings. However, if it doesn’t work, you have to try installing the latest version of Windows without keeping the previous settings.

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either the Nothing (clean install) or the Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings since it doesn’t really work.

Option 3 – Run the DISM tool

You can run the DISM tool as well to help fix the error code 0x8007042B during Windows Update. 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.

Option 4 – Perform a System File Checker scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Windows Update Error 0x8007042B to appear. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.

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.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update Error 0x8007042B. 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.

Option 6 – Contact Microsoft Support for assistance

If you’re at your wits’ end in trying to update your Windows 10 computer, you should consider contacting Microsoft Support for help as they can offer you various options that would make fixing Windows Update Error 0x8007042B a lot easier and faster.

Error 0x80070003 - What is it?

Error 0x80070003 is a type of Windows file backup and restore error code. This error occurs when you copy files or try to create backup and restore files and folders by using Windows Backup and Restore. This error stops you from using browse for files or folders. It hampers your ability to browse and restore files in the File Restore Wizard on your PC.

Solution

Error Causes

Error 0x80070003 may occur due to numerous reasons such as:

• Registry files are corrupted and damaged
• Missing directories
• Boot sector corrupted
• Outdated drivers
• Faulty software installation
• Malware infection
• Improper maintenance and incomplete installation

Further Information and Manual Repair

Here are some manual and easy do-it-yourself methods that you can try at home and resolve the issue on your own and save hundreds of dollars that you would be otherwise spending to hire a professional for the job.

Method 1 - Use Search Functionality in the File Restore Wizard to restore files

To work out and resolve error 0x80070003 on your system simply use the search functionality in the File Restore Wizard to locate and restore the files. This can be done by going to the start menu and then click on search. Now enter the keywords in the search for box and then click search again. Click to select the files that you want to restore from the list and then click OK. This will help you restore the files and resolve the issue.

Method 2 - Recreate the Missing Directory

If the re-parse point is deleted, then you will have to recreate the missing directory. The deletion of the re-parse point can be identified if the error code is displayed in this format ‘Filename: C:\Myfolder\11111.txt, Error: the system cannot find the path specified (0x80070003)’. To resolve, simply follow the path that is pointed out in the error and create the corresponding folder. Create the folder Myfolder in Drive C. Then try the restore operation again. Now click to clear the Restore the files to their original subfolders check box and then run the File Restore Wizard. This is most likely going to resolve the issue.

Method 3 - Scan for Viruses

Sometimes error 0x80070003 may occur due to malware. This stops you from creating file backup and restore files. If this is the cause then simply download and run an antivirus to remove malware programs on your PC.

Method 4 - Clean and Repair the Corrupted Registry

Error 0x80070003 can be triggered due to registry corruption. If this is the cause then simply download Restoro. This is a user-friendly and powerful multi-functional PC Fixer integrated with a registry cleaner. The registry cleaner scans for all registry-related errors, wipe out all unnecessary and junk files, and also cleans and repairs the damaged registry in seconds. Click here to download Restoro and resolve error 0x80070003 today!

As you know, “JPEG” is one of the commonly used formats for image files which is a compression of digital images. It is one of the topmost used file formats by mobile phones and digital cameras and usually achieves a 10:1 compression with little visible loss in the quality of the image. There are tons of cases as of late, most particularly after the latest Windows 10 update where users were not able to open JPEG files on their PCs. Every time they try to open any JPEG file, they either get an error or nothing happens at all. This issue could be due to the default handler application for JPEG applications not being set or there could be some third-party image viewer not working properly. To fix this issue with JPEG files, refer to the troubleshooting options below.

Option 1 – Try to change the file type association

You need to check if the file type association of the JPEG files are correctly set or not since there are tons of third party programs that change the file type association automatically to themselves without your permission the instant they are installed and so if any of these third-party programs are broken, then naturally, your JPEG files won’t really open. That’s why you can try changing the setting to the default photo viewer instead of the third-party one. To do so, follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Then type in “control panel” in the field and hit Enter to open the Control Panel.
• After opening Control Panel, click on the Programs category and select the “Default Programs” option from the menu.
• Next, select the second option “Associate a file type or protocol with a program” and then select the “Choose default apps by file type” option.
• After that, click on the .jpg file extension and choose the option from the pop-up.
• Now restart your PC to refresh all your programs and then see if it has fixed the problem or not.

Option 2 – Try to update your computer

Microsoft frequently releases updates to target bugs and improve users’ experience. And this particular error where JPEG files won’t open is already acknowledged by Microsoft so you need to make sure that your Windows 10 PC is updated to the latest released update and that there are no pending updates.

• Tap the Win + S keys to open Search and then type in “update” in the field and open the system setting from the search results.
• After that, check for updates and then download and install them if needed.
• Now restart your PC once the update is done and check if you can now open JPEG files.

Option 3 – Try to reset the Photos app via Settings

Resetting the Photos app could also help you in fixing the problem. Note that this option will reset all the configurations and your data associated with your Photos and makes the application go into a state when you first started using it and that this option will fix any discrepancies that your application might be experiencing right now.

• Tap the Win + S keys to open the search bar.
• Then type in “settings” in the field to open the Settings application.
• After opening Settings, click the “Apps” category.
• From there, a list of applications installed on your computer will appear.
• Navigate through these applications until you find the Photos app and then click on the Advanced options.
• Afterward, click the Reset button that appears on the next screen. Then a new pop-up comes up and will warn you that all the preferences, as well as sign-in information, will be lost. Click on “Reset” anyway to proceed in resetting the Photos app.
• Restart your PC once the reset is done.

Option 4 – Try to reinstall the Photos app

Before you start using other third-party image viewers just yet, you can try to reinstall the Photos app first. Thus, if there is something wrong with it, it will instantly get fixed right after it reinstalls. Just take note that this option requires administrative privileges so you need to be logged in as an administrator.

• The first thing you have to do is tap the Windows + S keys and type in “PowerShell”.
• Next, right-click on the file and click on the “Run as administrator” option from the context menu.
• Once PowerShell is opened, execute this command: get-appxpackage *Microsoft.Windows.Photos* | remove-appxpackage
• The command you just entered will remove the Photos app. After the process is done, go to the Microsoft Store and look for Microsoft Photos then download and install it again.

In this post, you will be guided on how you can set up the USB tethering feature on your Windows 10 computer and share your mobile device’s mobile data so other devices can also access the internet. Tethering is usually known as Wi-Fi tethering which allows users to share mobile data to any device with Wi-Fi, laptops included. This is really useful especially when you have no other way to access the internet. For instance, if you are using a desktop computer and there is no way for you to connect to the Ethernet, and you have no Wi-Fi adapter that you can use to connect to a router as well, you can use USB tethering instead to access the internet. It is almost similar to Wi-Fi tethering except that it works over a USB connection instead of a Wi-Fi adapter. USB tethering is almost quite the same as an Ethernet connection except that it’s faster compared to Wi-Fi tethering as well as Bluetooth tethering. Just like Wi-Fi tethering, USB tethering is free unless your network carrier has blocked it. Thus, it’s better if you make that clear with your operator. Once you have that covered,

Follow the instructions provided below to set up USB tethering on your Windows 10 computer.

Step 1: First, connect your mobile device to your Windows 10 computer using a USB cable. Step 2: If it asks you to enable the file transfer feature, just cancel it. A prompt that says, “Tethering or Hotspot active—Tap to setup” should be available as soon as you get connected – tap on it. Note: If there is no prompt, just go to Settings > Network and Internet > Hotspot and Tethering and from there, toggle on the USB tethering option. Step 3: Afterwards, the setup will create a new network adapter in Windows 10 automatically and your computer should now be connected to the internet using USB tethering. Note: You have to make sure that the Wi-Fi connection in your mobile device is turned off and if it is connected to an existing network, the USB tethering will be disabled but if you see its status as enabled, then the USB tethering setup is successfully done. In addition, keep in mind that the location of tethering can be different for every phone, especially on a customized operating system such as RealMe, Redmi, Samsung, and any other mobile device although they are clubbed in the section of Mobile and Data Network. In case you encounter some problems when using USB tethering in your Windows 10 computer, there are troubleshooting tips you should follow. The NDIS-based Internet Sharing Device network adapter is what Windows 10 uses to make USB tethering possible so if it stops working, follow the options provided below.

Option 1 – Perform basic check

The first thing you can do if you encounter problems in USB tethering is to do a basic check like checking if Wi-Fi is enabled automatically as well as check if the USB cable is disconnected or if you’ve turned off USB tethering accidentally.

Option 2 – Try installing or updating the USB RNDIS adapter

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

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

A surprisingly large amount of things present at your home can and do interfere with your wi-fi signal making it weak so devices are dropping it, having trouble connecting, or being slow.

Hello and welcome to our latest article where we will take a look at all things that are present in a lot of homes but are very bad for your WI-Fi signal.

Bad router placement

Having a router in a bad position can have some really large effects on WI-Fi signal strength and its availability. Usually, we do not give great attention to where we are placing our router but it has been proved over and over again that being close to certain objects does indeed have a great influence on the wireless signal strength and performance.

So, what are these objects and bad positions where we could place the router and effectively kill his Wi-Fi capabilities?

Fish Tanks

Water will block all radio waves including Wi-FI signals and waves themselves, so having a router next to the aquarium or any large source of water is a bad idea. You should always look at water as something bad for your Wi-Fi and move your router away from it as far as possible.

Bookshelves

Paper is another story and example of the dampening effect on radio waves. Did you know that various patterns of paper are used in silent rooms and recording studios in order to eliminate sound reflection from surfaces? Well besides absorbing sound waves, the paper also absorbs Wi-Fi signals and if you have a large bookshelf with a lot of books packed one beside another you just have a great wall of signal absorbing.

Mirrors

The problem with mirrors is in their coating that goes over the glass in order to turn it into the mirror, that coating is metal and as such, it is absorbing signals in large amounts. If you have an old or high-quality mirror that has a silver coating things are even worse since silver will absorb even more waves than modern cheap ones.

TV

Yup, TV is also on this list and for a similar reason as a mirror, although TV does not have coatings of metal, they have something even worse: a large metal plating on the back. Metal plating is there to produce structural integrity of the TV set and provide it with shielding from electromagnetic waves and as such it will prevent Wi-Fi waves as well. Do not place the router behind your TV.

Things that influence signals in homes

Any kind of metal decoration

Now when we covered mirrors and TV because of the metal they have, we must take a look at the metal itself. Any kind of metal stuff that you might have like baskets, figures, statues, frames, etc will effectively block your signal.

Kitchen appliances and Home utilities

Kitchen appliances like refrigerators, microwaves, ovens, stoves, etc. along with home appliances and utilities like dishwashers, washing machines, dryers, etc are large metal objects enclosed in a metal cage that will block signals from spreading further and it is no secret that most kitchens have weaker Wi-Fi because of this reason.

Home gyms

This is a logical conclusion as to everything explained so far if you have a workout room or small gym at home it is probably filled with weights that are metal and have mirrors inside, all of that will interfere and block signals.

Things blocking your Wi-Fi that you have no easy control over

Walls

Thick walls will dampen signals, thick walls from bricks will dampen even more and concrete walls will kill it almost completely. Any kind of metal reinforcement wiring inside walls will reduce and kill signals as well.

Floors and ceiling

This is somewhat important if you have a floor beneath or under the room where is your router located, but for the same reason how walls are blocking your signal floor and ceiling can do it as well, especially since most of the time they are made of some stronger material like concrete with metal fence inside.

Heating systems

If you have a heating system that is composed of metal radiators with water inside, then in terms of Wi-Fi signal strength you have an aquarium but in a metal box, and as such it will greatly reduce signal strength.