What Is 0x80004005 Outlook Error?
0x80004005 Outlook is an error that users commonly encounter while attempting to send or receive emails on Outlook.
The message that appears usually states “This message could not be sent. Try sending the message again or contact your network administrator."
The client operation failed. Error is [OX80004005- 0X0004B9-OXOO501].
Error Causes
This error is usually caused by a problem in the Local Area Network or LAN. What actually happens is that signals with the wireless LAN are lost or a connection problem occurs within the network cable.
As a result, the 0x80004005 Outlook error is triggered while sending or receiving an email. Sometimes the problem goes away on its own. However, if it recurs after a few hours, it shows that some problem exists within the network.
Also, it is important to understand that different factors can affect the quality of wireless connections in a network.
For instance, garage door openers, microwave ovens, and Bluetooth devices can easily become obstacles, disrupting the connection and causing the quality to degrade. Other causes are listed below as follows.
- Missing, corrupt, or damaged registry keys
- Existence of viruses
- Outdated drivers
It is a must to fix this error otherwise potential risks associate with this error such as permanent damage and blue screens.
Further Information and Manual Repair
There are two ways to fix this error and both are listed below as follows.
- One solution is to disable script blocking in Norton Antivirus. Most users encountering this problem have Norton Antivirus installed on their PCs. To correct this problem, simply turn off the ‘Enable Script Blocking’ feature. However, there is a downside associated with this solution. Enabling script blocking will make your network or computer vulnerable to viruses and malware. That’s why it is not advised to implement this solution.
- The alternative solution is to simply disable the new-mail notification feature offered in Outlook. To disable notifications of any new emails, the steps go as follows. Open Outlook and go to the Tools menu. Here you will come across ‘Options’.Click on it and then select the ‘Preferences’ tab. Here you will find the ‘Email Options’. Click on it and then uncheck the checkbox against the option, ‘Display a notification message when new mail arrives’. Click Ok two times.
Both these workarounds will work. Therefore, it is advised that you employ any one of them as per your needs.


Windows 11 has brought some new features and changed some of the existing ones. One of these changes includes quick switching of audio devices which will play audio.
Audio switching can still be done under the taskbar, it is just a little different and one could say even hidden. Follow this quick guide and you will be switching from your headphones to speakers as an example in a matter of seconds.
As in most usual online scams, everything starts with a strange email containing threats and other poorly written and composed speech. At the end of the given email, there would be a link claiming that you, of course, need to read it and follow instructions about the threat, if you click the link it will open a web page where you will have an innocent-looking PDF file with more information about the threat itself.
If you click on a seemingly innocent PDF file it will summon Windows 10's AppInstaller.exe tool, kickstarting a download-and-run process that'll put you in a bad place very quickly. From there, you'll have to deal with the dangers of malware BazarBackdoor, including data and credential theft.
This kind of scam is nothing new but the interesting thing here is that it uses App installer and by clicking on a link you are opening and giving permission for a malicious crook to use it. So, stay safe and do not click on any links from unknown emails no matter what. 
