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.
Dull 1: Dulliau Datrys Problemau Sylfaenol
Here are a few basic methods to fix the WOW error.
1A. Ailgychwyn 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. Llywiwch i ddewislen Windows Power User trwy wasgu'r Allweddi Windows ac X ar yr un pryd.
2. Dewiswch Caewch i lawr neu arwyddwch.
3. Yn olaf, cliciwch ar Ail-ddechrau.
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.
Gofynion Isafswm:
- CPU: Intel Core i5-760 neu AMD FX-8100 neu ddiweddarach
- CYFLYMDER CPU: gwybodaeth
- RAM: 4 GB RAM (8GB ar gyfer graffeg integredig fel Intel HD Graphics)
- OS: Windows 7 / Windows 8 / Windows 10 64 bit
- CERDYN FIDEO: NVIDIA GeForce GTX 560 2GB neu AMD Radeon HD 7850 2GB neu Intel HD Graphics 530 (45W)
- RHANNWR PIXEL: 5.0
- RHADER VERTEX: 5.0
- GOFOD DISG AM DDIM: 70 GB
- RAM FIDEO DEDICATED: 2 GB
Gofynion a Argymhellir:
- CPU: Intel Core i7-4770 neu AMD FX-8310 neu ddiweddarach
- CYFLYMDER CPU: gwybodaeth
- RAM: 8 GB
- OS: Windows 10 64 bit
- CERDYN FIDEO: NVIDIA GeForce GTX 960 neu AMD Radeon R9 280 neu ddiweddarach
- RHANNWR PIXEL: 5.1
- RHADER VERTEX: 5.1
- GOFOD DISG AM DDIM: 70 GB
- RAM FIDEO DEDICATED: 4 GB
1C. Sicrhau Cysylltiad Rhwydwaith Priodol
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.
Gallwch chi redeg a Cyflymder i wybod y lefel optimwm o gyflymder rhwydwaith sydd ei angen ar gyfer y cysylltiad cywir.
Sicrhewch fod eich dyfais yn bodloni'r meini prawf isod.
- Darganfyddwch gryfder signal eich rhwydwaith ac os yw'n isel iawn, cliriwch yr holl rwystrau rhwng y ffordd.
- Osgoi gormod o ddyfeisiau sydd wedi'u cysylltu â'r un rhwydwaith.
- Prynwch fodem/llwybrydd wedi'i wirio gan eich Darparwr Gwasanaeth Rhyngrwyd (ISP) bob amser ac nid oes unrhyw wrthdaro rhyngddynt.
- Peidiwch â defnyddio ceblau hen, wedi torri, neu wedi'u difrodi. Amnewid y ceblau os oes angen.
- Sicrhewch fod y gwifrau o'r modem i'r llwybrydd a'r modem i'r wal yn sefydlog ac allan o aflonyddwch.
Os oes unrhyw broblemau cysylltedd rhyngrwyd, edrychwch ar ein canllaw Sut i Ddatrys Problemau Cysylltedd Rhwydwaith ar Windows 10 i ddatrys yr un peth.
1D. Cau Prosesau Cefndir
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. Atgyweirio Ffeiliau System
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, Gwiriwr Ffeil System ac Delwedd Delweddu Gwasanaethu a Rheoli. Darllenwch ein canllaw ar Sut i Atgyweirio Ffeiliau System ar Windows 10 a dilynwch y camau yn ôl y cyfarwyddiadau i atgyweirio'ch holl ffeiliau llwgr.
Darllenwch hefyd: Sut i Lawrlwytho Offeryn Atgyweirio Hextech
1F. Rhedeg Glanhau Disg Llawn
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. Diweddaru Windows
Gallwch hefyd ddileu bygiau yn eich cyfrifiadur a'ch gêm trwy ddiweddaru eich System Weithredu. Sicrhewch bob amser a ydych wedi diweddaru eich System Weithredu Windows ac os oes unrhyw ddiweddariadau yn yr arfaeth, defnyddiwch ein canllaw Sut i Lawrlwytho a Gosod Windows 10 Diweddariad Diweddaraf.
After updating your Windows Operating System, check whether you can connect to your WOW game server without any errors.
1H. Diweddaru Gyrwyr Graffeg
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 Dychweliad gyrwyr a gallwch chi rolio'ch gyrwyr cyfrifiadur yn ôl i'w cyflwr blaenorol yn hawdd trwy ddilyn ein canllaw Sut i Dychwelyd Gyrwyr ymlaen Windows 10.
Darllenwch hefyd: Sut i Ddweud Os Mae Eich Cerdyn Graffeg yn Marw
1J. Ailosod Gyrwyr Graffeg
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. Clirio storfa DNS a 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.
Method 2: Run Blizzard Battle.net as Administrator
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. De-gliciwch ar y World of Warcraft llwybr byr on the desktop or navigate the cyfeiriadur gosod a de-gliciwch arno.
2. Yn awr, dewiswch y Eiddo opsiwn.
3. Yna, newid i'r Cysondeb tab a gwiriwch y blwch Rhedeg y rhaglen hon fel gweinyddwr.
4. Yn olaf, cliciwch ar Ymgeisiwch> Iawn i achub y newidiadau.
Darllenwch hefyd: Mae Fix WoW yn Cymryd Am Byth i'w Lansio i mewn 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 Allweddi Windows + E gyda'n gilydd i agor File Explorer.
2. Now, navigate to following llwybr fel y darluniwyd.
C: Ffeiliau Rhaglen (x86) World of Warcraft
3. Now, find the following folders and right-click on them. Then, select Ailenwi fel y dangosir.
4. Now, rename the folders to something like Cacheold, Interfaceold, WTFold yn y drefn honno.
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. Ewch i'r wefan World of Warcraft ffolder.
2. Yna, de-gliciwch ar Cache ffolder a dewiswch y Dileu opsiwn fel y dangosir.
Darllenwch hefyd: 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. Lansio ffeil Explorer a llywio ato World of Warcraft ffolder.
2. Nawr, de-gliciwch ar Wow.exe setup file and select the Eiddo opsiwn.
3. Yn awr, newid i'r cyffredinol tab a dad-diciwch y blwch nesaf at Darllen yn unig nesaf i Priodoleddau adran fel y dangosir.
4. Yna, cliciwch ar Ymgeisiwch> Iawn i achub y newidiadau.
Dull 6: Rhedeg Offeryn Atgyweirio Blizzard
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 file and select the Rhedeg fel gweinyddwr opsiwn fel y dangosir.
2. If you are prompted by 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 o'r rhestr.
4. Yna, cliciwch ar Opsiynau ddilyn gan Scan & Repair from the drop down list.
5. Yn yr anogwr nesaf, click on Begin scan ac aros nes bod y broses wedi'i chwblhau.
Finally, restart your game and check if you can fix BLZBNTAGT00000840 error code.
Darllenwch hefyd: Trwsio Avast Ddim yn Diweddaru Diffiniadau Feirws
Dull 7: Addasu Gosodiad Mur Tân Windows Defender
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.
Opsiwn II: Analluogi Mur Tân (Heb ei Argymhellir)
Os nad ydych chi'n gwybod sut i analluogi Windows Defender Firewall, bydd ein canllaw Sut i Analluogi Windows 10 Firewall yn eich helpu i wneud hynny.
Opsiwn III: Creu Rheol Newydd 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.
Dull 8: Analluogi Gwrthfeirws Dros Dro (os yw'n berthnasol)
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.
Darllenwch ein canllaw ar Sut i Analluogi Gwrthfeirws Dros Dro ar Windows 10 a dilynwch y cyfarwyddiadau i analluogi eich rhaglen Gwrthfeirws dros dro ar eich cyfrifiadur.
Os oes gennych chi ateb i'ch problem ar ôl analluogi'r rhaglen gwrthfeirws yn eich cyfrifiadur, fe'ch cynghorir i ddadosod y rhaglen yn gyfan gwbl o'ch cyfrifiadur personol. Darllenwch ein canllaw Force Uninstall Programs na fyddant yn Dadosod Yn Windows 10 i ddadosod eich rhaglen gwrthfeirws yn eich cyfrifiadur.
Darllenwch hefyd: Trwsiwch Blizzard Gosodiad arall ar y gweill 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. Taro'r Allwedd Windows a math apps a nodweddion, yna cliciwch ar agored.
2. Yn awr, chwilia World of Warcraft yn y rhestr a chliciwch arno. Yna, dewiswch y Uninstall opsiwn.
3. Os gofynnir i chi, eto cliciwch ar Uninstall.
4. Yn awr, ymwelwch a'r Safle swyddogol Blizzard, A chliciwch ar World of Warcraft.
5. Yna, cliciwch ar Dadlwythwch ar gyfer Windows option and wait until the game gets installed on your PC.
6. Ewch i Fy lawrlwythiadau yn File Explorer a chliciwch ddwywaith ar y setup file to run the application.
7. Dilynwch y cyfarwyddiadau ar y sgrin to install the game on your Windows 10 PC
Finally, relaunch the game and now you will have fixed WOW error code BLZBNTAGT00000840.
Argymhellir:
Gobeithiwn fod y canllaw hwn yn ddefnyddiol ac y gallech ei drwsio 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.