Many of you might struggle with can’t update World of Warcraft BLZBNTAGT00000840 error and the most common issue that causes this issue is the server problem. Updates are really essential to fix any bugs within the game that prevents you from enjoying it normally. If you are also struggling with the same issue on your Windows 10 PC, this guide will help you fix WoW error BLZBNTAGT00000840 error with its effective troubleshooting methods as discussed below.
How to Fix Can’t Update World of Warcraft BLZBNTAGT00000840 Error
There are so many reasons associated with WoW BLZBNTAGT00000840 on your Windows 10 PC. Yet, a few significant reasons are listed below.
- Battle.net lacks admin access.
- Corrupt data in the game installation folder.
- Editing permissions are missing.
- Antivirus program blocks a few features of the game or the game itself.
- Windows Defender Firewall is blocking the program.
- Outdated Operating System and PC drivers.
- Corrupt game data.
Now, move ahead to the next section to learn the troubleshooting methods for World of Warcraft BLZBNTAGT00000840. Read and implement the below-discussed methods in your Windows 10 computer for WOW Error code BLZBNTAGT00000840 fix and to prevent the same.
Metoade 1: Basic Troubleshooting Metoaden
Here are a few basic methods to fix the WOW error.
1A. Restart PC
The general trick to resolve all the temporary glitches associated with World of Warcraft is to restart your computer. You can restart your PC by following the steps.
1. Navigearje nei it Windows Power User menu troch te drukken op de Windows- en X-toetsen tagelyk.
2. Útkieze Ofslute of ôfmelde.
3. As lêste, klik op Restart.
Once you have restarted your game, check if you can the game without any errors.
1B. Check Game Requirements
If you are facing a WOW BLZBNTAGT00000840 error on startup, you have to check the basic requirements of the game and ensure that your PC satisfies them.
Minimum Requirements:
- CPU: Intel Core i5-760 of AMD FX-8100 of letter
- CPU SPEED:ynfo
- RAAM: 4 GB RAM (8 GB foar yntegreare grafiken lykas Intel HD Graphics)
- OS: Windows 7 / Windows 8 / Windows 10 64 bit
- FIDEOKAART: NVIDIA GeForce GTX 560 2GB of AMD Radeon HD 7850 2GB of Intel HD Graphics 530 (45W)
- PIXEL SHADERS: 5.0
- VERTEX SHADES: 5.0
- FREE skiifromte: 70GB
- DADICATED VIDEO RAM: 2GB
Oanfrege oanfragen:
- CPU: Intel Core i7-4770 of AMD FX-8310 of letter
- CPU SPEED:ynfo
- RAAM: 8GB
- OS: Windows 10 64 bit
- FIDEOKAART: NVIDIA GeForce GTX 960 of AMD Radeon R9 280 of letter
- PIXEL SHADERS: 5.1
- VERTEX SHADES: 5.1
- FREE skiifromte: 70GB
- DADICATED VIDEO RAM: 4GB
1C. Ensure Proper Network Connection
Unstable internet connection leads to BLZBNTAGT00000840 error , also if there are any obstacles between your router and your computer, they may interfere with the wireless signal and will cause intermittent connection problems.
Jo kinne rinne a Speedtest om it optimale nivo fan netwurksnelheid te kennen dy't nedich is foar de juste ferbining.
Soargje derfoar dat jo apparaat foldocht oan de ûndersteande kritearia.
- Fyn de sinjaalsterkte fan jo netwurk en as it heul leech is, wiskje dan alle obstruksjes tusken de wei.
- Foarkom tefolle apparaten ferbûn oan itselde netwurk.
- Keapje altyd in modem/router ferifiearre troch jo Internet Service Provider (ISP) en se binne frij fan konflikten.
- Net brûke âlde, brutsen, of skansearre kabels. Ferfange de kabels as it nedich is.
- Soargje derfoar dat de draden fan 'e modem nei de router en it modem oan' e muorre stabyl binne en út steuring.
As d'r problemen binne mei ynternetferbining, kontrolearje dan ús hantlieding Hoe kinne jo problemen mei netwurkferbining oplosse Windows 10 om itselde probleem op te lossen.
1D. Close Background Processes
Several users have confirmed that WOW error BLZBNTAGT00000840 can be resolved by closing all the background tasks running on your PC. To implement the task, follow our guide How to End Task in Windows 10, and proceed as instructed.
Once you have closed all the background processes, check if you were able to fix error code BLZBNTAGT00000840 in WOW.
1E. Repair System Files
If there are any missing or damaged files on your Windows 10 PC, you will face WOW error BLZBNTAGT00000840 . Yet, you are repairing these corrupt files by using inbuilt utilities namely, Systeem File Checker en Ferwidering Image Service and Management. Lês ús hantlieding oer Hoe kinne jo systeembestannen reparearje Windows 10 en folgje de stappen lykas ynstruearre om al jo korrupte bestannen te reparearjen.
Lês ek: Hoe kinne jo Hextech Repair Tool downloade
1F. Run Full Disk Cleanup
Few users have suggested that clearing some disk space in PC has helped them sort out WOW error code BLZBNTAGT00000840. This will enable your computer to install new files whenever needed which will help you fix the problem.
If there is minimum available space in your computer contributing to the discussed error code in WOW, follow our guide 10 Ways to Free Up Hard Disk Space On Windows that helps you clear all unnecessary files in your computer.
1G. Update Windows
You can also eradicate bugs in your computer and game by updating your Operating System. Always ensure if you have updated your Windows Operating System and if there are any updates pending in action, use our guide How to Download and Install Windows 10 Latest Update.
After updating your Windows Operating System, check whether you can connect to your WOW game server without any errors.
1H. Update Graphics Drivers
World of Warcraft, being a graphical intensive game, your graphics driver is essential important for your gaming experience. If the drivers are outdated or faulty, make sure you update them. You can search for the newest releases of drivers from its official websites or you can update them manually.
Follow our guide 4 Ways to Update Graphics Drivers in Windows 10 to update your driver and check if you have fixed WOW error BLZBNTAGT00000840.
1I. Roll Back GPU Drivers
Sometimes, the current version of GPU drivers may cause WOW error BLZBNTAGT00000840 and in this case, you have to restore previous versions of installed drivers. This process is called weromdraaien fan bestjoerders en jo kinne jo kompjûterbestjoerders maklik weromrolle nei har foarige steat troch ús hantlieding te folgjen Hoe kinne jo sjauffeurs weromdraaie op Windows 10.
Lês ek: How to Tell If Your Graphics Card is Dying
1J. Reinstall Graphics Drivers
If you still face BLZBNTAGT00000840 error after updating your Graphical drivers, then reinstall device drivers to fix any incompatibility issues. There are several ways to reinstall drivers on your computer. Yet, you can easily reinstall Graphical drivers as instructed in our guide How to Uninstall and Reinstall Drivers on Windows 10.
After reinstalling GPU drivers, check if you can access World of Warcraft without any errors.
1K. Clear DNS Cache & Data
Few users have suggested that clearing the DNS cache and data on your PC has helped them fix BLZBNTAGT00000840 error code. Follow our guide on how to flush and reset the DNS Cache in Windows 10.
Metoade 2: Run Blizzard Battle.net as behearder
This is one of the most common reasons that cause BLZBNTAGT00000840 in your Windows 10 PC. Certain permissions and features can only be accessed if you have granted admin rights to the World of Warcraft game. In this scenario, you can fix WOW error code BLZBNTAGT00000840 by following the below-listed instructions.
1. Rjochts-klikke op de World of Warcraft ferpleatse op it buroblêd of navigearje de ynstallaasje triemtafel en klik der mei rjochts op.
2. No, selektearje de eigenskippen opsje.
3. Dan, oerskeakelje nei de Compatibility ljepper en kontrolearje it fakje Dit programma útfiere as behearder.
4. As lêste, klik op Tapasse> OK om de wizigingen op te slaan.
Lês ek: Fix WoW Takes Forever to Launch in Windows 10
Method 3: Rename Cache, Interface and WTF Folders
There are few gaming files residing in folders like Cache, Interface and WTF that are responsible to store the basic information on the game, progress, and settings. If they are corrupt, you will face can’t update World of Warcraft. So, you are advised to rename the folders and check if it works.
1. Close all processes running in the background as instructed in the above method and press Windows + E toetsen tegearre te iepenjen File Explorer.
2. Now, navigate to following paad lykas ôfbylde.
C:Program Files (x86)World of Warcraft
3. Now, find the following folders and right-click on them. Then, select Omneame lykas werjûn.
4. Now, rename the folders to something like Cacheold, Interfaceold, WTFold respektivelik.
Once you have renamed these folders, relaunch the game and check if you can fix error code BLZBNTAGT00000840 in your Windows 10 PC.
Method 4: Delete WOW Cache Folder
Several users face BLZBNTAGT00000840 during the startup and this issue could be resolved when the cache folder is removed completely from your computer. All the temporary files of the game will be deleted and the next successive startup will launch the game without any errors. If renaming the folders doesn’t work for you, the below-listed instructions will help you do so.
1. Gean nei de World of Warcraft folder.
2. Dan, rjochts-klikke op cover map en selektearje de wiskje opsje lykas werjûn.
Lês ek: Fix WOW High Latency But Internet is Fine in Windows 10
Method 5: Disable Read-Only Attribute
The World of Warcraft game will run without any errors when you have granted proper custom attributes settings in UAC (User Account Control). If in case, the game and its components has only read-only components, you cannot modify or update World of Warcraft. This results in can’t update World of Warcraft on your PC. In this event, change the read-only attribute for the game as instructed below.
1. Launch File Explorer en navigearje nei World of Warcraft folder.
2. No, rjochts-klikke op Wow.exe setup triem en selektearje de eigenskippen opsje.
3. No, oerskeakelje nei de Algemien tab and uncheck the box next to Allinnich lêze Njonken attributen seksje lykas werjûn.
4. Klik dan op Tapasse> OK om de wizigingen op te slaan.
Metoade 6: Run Blizzard Repair Tool
If you still couldn’t fix Can’t Update World of Warcraft error BLZBNTAGT00000840, there may be some chances that your PC has some damaged gaming files in it. Damaged files may fill your computer due to an over protective antivirus suite or due to an update failure. Fortunately, you can resolve all these corrupt gaming files automatically with the help of a built in tool of Blizzard. Here are few instructions to run the Battle.net Repair tool.
1. Go to the directory of the Wow.exe setup triem en selektearje de Run as administrator opsje lykas werjûn.
2. As jo wurde frege troch User Account Control window, click on Yes to proceed.
3. Now, switch to the Games tab at the top corner of the window and then select World of Warcraft fan 'e list.
4. Then, click on Options followed by Scan & Repair from the drop down list.
5. In the next prompt, klik op Start scan en wachtsje oant it proses wurdt foltôge.
Finally, restart your game and check if you can fix BLZBNTAGT00000840 error code.
Lês ek: Fix Avast net bywurkje fan firusdefinysjes
Metoade 7: Feroarje Windows Defender Firewall-ynstelling
You will also face can’t update World of Warcraft, due to an over-reactive or over-protective antivirus suite in your Windows 10 computer. This prevents the connection link between the game launcher and the server. So, to fix this problem, you can whitelist World of Warcraft in your Firewall settings or disable the problem temporarily.
Option I: Whitelist World of Warcraft
To allow World of Warcraft in your Windows Defender Firewall, follow our guide Allow or Block Apps through the Windows Firewall and implement the steps as instructed.
Opsje II: Firewall útskeakelje (net oanrikkemandearre)
As jo net witte hoe't jo Windows Defender Firewall útskeakelje, ús hantlieding Hoe kinne jo útskeakelje Windows 10 Firewall sil jo helpe dat te dwaan.
Opsje III: Meitsje nije regel yn Firewall
Follow our guide How to Add Windows Firewall Rule and check if you have fixed error code BLZBNTAGT00000840 in WOW is fixed or not.
Metoade 8: Antivirus tydlik útskeakelje (as fan tapassing)
Some incompatible antivirus programs installed in your computer will cause BLZBNTAGT00000840. To avoid conflicts, you must ensure the security settings of your Windows 10 computer and check if they are stable or not. To find whether the antivirus suite is the reason for the discussed WOW error code, disable it once and try connecting to a network.
Lês ús hantlieding oer Hoe kinne jo antivirus tydlik útskeakelje Windows 10 en folgje de ynstruksjes om jo antivirusprogramma tydlik op jo PC út te skeakeljen.
As jo in oplossing hawwe foar jo probleem nei it útskeakeljen fan it antivirusprogramma op jo kompjûter, wurdt jo advisearre om it programma folslein fan jo PC te ferwiderjen. Lês ús hantlieding Force Uninstall Programs dy't net Uninstall In Windows 10 om jo antivirusprogramma fan jo kompjûter te ferwiderjen.
Lês ek: Blizzard reparearje In oare ynstallaasje yn Progress yn Windows 10
Method 9: Reinstall World of Warcraft
Any misconfigured files in World of Warcarft will lead to can’t update World of Warcraft BLZBNTAGT00000840 error even if you have followed all the above discussed methods and updated all the pending actions. So, in this case, you have no other option than to reinstall the game. Here is how you do it.
1. Hit de Windows-kaai en type apps en funksjes, klik dan op Iepen.
2. No, sykje World of Warcraft yn 'e list en klikje derop. Selektearje dan de -ynstallaasje opsje.
3. As jo wurde frege, klik nochris op -ynstallaasje.
4. No, besykje de Blizzard offisjele side, en klikje op World of Warcraft.
5. Klik dan op Download foar Windows option and wait until the game gets installed on your PC.
6. Gean nei Myn downloads yn File Explorer en dûbelklikje op de setup file to run the application.
7. Folgje de ynstruksjes op it skerm to install the game on your Windows 10 PC
Finally, relaunch the game and now you will have fixed WOW error code BLZBNTAGT00000840.
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Wy hoopje dat dizze gids nuttich wie en dat jo koenen reparearje can’t update World of Warcraft BLZBNTAGT00000840 error. Let us know which method worked for you the best. Also, if you have any queries/suggestions, then feel free to drop them in the comments section.