How do I fix a Windows error – won`t open

  • is an online game, social networking service, and online digital distribution platform developed by Blizzard Entertainment.
  • Some users report that the game launcher won’t open on Windows PCs.
  • There can be several reasons for this problem, and here are some of the possible solutions.
  • In this post, Techquack provides solutions to the problem without opening the game client on a Windows PC.
Updated February 2024This tool will stop these errors and fix common problems: Get it at this link
  1. Download and install the software.
  2. It will scan your computer to find problems.
  3. The tool will then correct the issues that were discovered.

Blizzard is a great platform for gamers because it has many games. Some users report that the game launcher won’t open on Windows PCs. In this post, Techquack provides solutions to the problem without opening

Battle Net Won T Open

There are times when does not start or crashes unexpectedly. If its client cache folder has been corrupted or reinstalled, it might not work properly.

This post will guide you through how you can resolve an issue with the launcher which isn’t working on Windows 11/10.

In addition to being a popular online game, Blizzard also offers social networking services, and online digital distribution. The platform is popular with gamers because it publishes games by Blizzard Entertainment and allows players to communicate with friends and other gamers.

It has been reported by some users that the launcher won’t even start. Fortunately, you’ve come to the right place if you can’t open the launcher after several attempts.

The clients can be run on a Windows PC, but some users report that it is not possible. Here are some solutions you can try.


Why won’t open on Windows?

Why won't open on Windows?

We’ve compiled a list of several methods you can try below if isn’t opening or behaving badly.

There is a problem with the desktop app. I am unable to log in. My app is stuck at the spinning logo.

The cache has gotten too big: If the files in the cache are piling up too much, it’s best to delete them all and see if the problem has gone away. This is an easy way to solve the problem and make the application work better and faster.

Lack of administrative permissions: In some cases, the application requires administrative permissions to work correctly and needs to be granted. Also, sometimes it can be helpful to run it in compatibility mode with older versions of Windows.

A Required Dll Could Not Be Found Battle Net

This application cannot be launched due to a missing DLL. Please download and reinstall this application.

How To Restart Battle Net

A program went wrong while trying to launch. Please restart the desktop app. If that doesn’t work, try restarting your computer. The error code is BLZBNTBNA00000006.

Other programs are to blame: It’s possible that other issues installed on your computer or services that are currently running are preventing from working properly. Often it is your antivirus program or a program you recently installed.


How do I fix the “ won`t open” error on Windows?

Updated: February 2024

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How do I fix the " won`t open" error on Windows?

  • As an administrator, start Battle.Network
  • Your launcher’s cache should be cleared
  • Firewall and antivirus software should be updated
  • You should disable programs running in the background
  • Service for secondary connection should be activated
  • Launcher for must be reinstalled

Run as an administrator

  1. The folder can be found in C: Program Files (or Program Files x86).
  2. By clicking the Properties button, you can modify the properties of Launcher.exe.
  3. Click on Compatibility.
  4. If you want to run this program as an administrator, select the Administrator box, and then confirm the selection.

You might have difficulty opening the launcher if you do not have administrative privileges. This is a fairly common problem, but not impossible to resolve if you know how.

You can solve your connectivity problem if you update your client. The following steps will explain how to do this:

  1. Clean DNS.
    Run commands can be accessed by pressing Windows + R together.
    Press Enter after typing ipconfig / flushdns at the command prompt.
  2. Make sure the connection is wired.
  3. Modems and routers need to be restarted.
  4. To restore factory settings, reset the router or modem.
  5. When online, run Troubleshooting.

You must grant the Launcher administrative permissions and ensure that it has free access to the dedicated servers in order for it to function properly.

It is likely that the problem will have been resolved after completing all the steps above. However, if it persists, your network connection is working correctly, so you can move on to the next step.

Clear the launcher cache and delete the Tools folder

For a launcher to work properly, it requires a great deal of secondary data.

There is always the possibility that one of these files will be corrupted or incomplete, causing the program to close. You may be able to recover these files, but most of the time they will have to be deleted and recreated by the application again.

Using Launcher, you can simply follow these instructions.

The Cache and Tools folder is located in the application data. Here are the steps to delete it:

  1. The Task Manager can be accessed by right-clicking the taskbar.
  2. These processes need to be stopped:
    Processes involved in games.
    A.exe or B.exe is required for updating Blizzard software is a service provided by Blizzard.
  3. The Run command prompt can be opened by pressing Windows + R after closing the Task Manager.
  4. Press Enter when prompted to enter the path C: ProgramData.
  5. You will need to find and delete the folder.
  6. Check if anything has changed by restarting

Have your antivirus and firewall checked

In most cases, the problem with the Battle. Network Thrower is not connected. We mentioned that it normally does not start when there is no connection.

According to our guide for uninstalling Windows software, can be removed using Control Panel’s Programs and Features applet. The desktop app can be downloaded by clicking Download for Windows after uninstalling the game launcher. Once the file has been downloaded, double-click it to begin the setup wizard.

Until you remove the launcher from exceptions, Windows will not scan the folder for viruses.

For Blizzard Agent to work properly, you must enable Windows Secondary Logon.

Dedicated servers may not be accessible by Launcher because they are protected by antivirus software or firewalls.

You will need to disable your antivirus program or add an exception (exclude the folder) to your antivirus program, since this is not an uncommon occurrence.

Additionally, you may need to allow to communicate through the Windows firewall if the launcher is not working. Follow these steps to allow to communicate through the firewall:

  1. Open Windows Firewall by typing Firewall into the search bar.
  2. To allow an application or function to communicate with Windows Firewall, click Allow on the left pane.
  3. You can change settings by selecting Change settings.
  4. By clicking Allow another application, you can let another application run.
  5. You will need to navigate to C: Program Files (or C: Program Files x86) by clicking the Browse button.
  6. Confirm the changes by adding Launcher.exe.

If not, check the two steps below. After that, you should repair the launch wedge for the “ Launcher”.

Disable Background Programs

Blizzard support often recommends disabling programs that might interfere with your Launcher before doing anything else. There are several programs that can interfere with the desktop client. Disabling one program at a time and looking for improvements can take a long time even if you know about it.

It is recommended that you try selective startup mode to determine if another third-party startup program is interfering with

  1. You can find System Configuration by searching for msconfig.msc in the Windows search bar.
  2. To start selectively, select it.
  3. Check the box next to “Load startup objects” and uncheck it.
  4. Select Services from the menu.
  5. Click Hide all Microsoft services to hide all Microsoft services.
  6. You can confirm the changes by clicking OK after clicking Disable All.
  7. Blizzard should be restarted as well.

As long as the client starts, everything is good, if it doesn’t – move on.

Service for secondary connection should be activated

  1. You can open the Services section by typing services into the search bar.
  2. Open the Properties window for the secondary connection service by right-clicking it.
  3. Select Automatic commissioning.
  4. Make sure the changes have been confirmed before starting the service.
  5. The changes will take effect after you restart your computer.

One more service you could use and one that is seldom used. By using the secondary login service, you are actually able to run a program with administrative privileges from a non-admin account, preventing multiple logins and logouts. This service is heavily reliant on, so you must enable it for some strange reason.

Reinstalling the launcher

Moving is our last hope if all other solutions fail. The installation files will still exist in the Application Data folder even if you delete the installation files from the Applications folder. Users with this problem have tried reinstalling the desktop application immediately to solve the issue.

The problem continues, so to fix it, you need to uninstall the desktop app completely. Follow the steps below to do so:

  1. Go to the control panel and search for management.
  2. The Uninstall Application window will appear after selecting View Category.
  3. Take your PC’s client offline and uninstall it.
  4. The Run dialog box will now appear after pressing Windows + R.
  5. Press Enter after typing C: ProgramData.
  6. It is recommended that you delete
  7. Your computer needs to be restarted.
  8. Follow the wizard to install

Please feel free to read this article if you encounter any problems. Once this procedure is completed, and related games should run smoothly. If the problem persists, we recommend reinstalling the system.


RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

Check your network configuration for problems with your firewall, router, or port settings. If you are using a VPN, try removing it. Disable proxy servers that might interfere with the connectivity module. Run a security scan to remove any viruses or malware.

  1. Run the launcher as an administrator.
  2. Empty your launcher cache.
  3. Check your antivirus and firewall.
  4. Disable background programs.
  5. Activate your secondary connection service.
  6. Reinstall the launcher.

Data cached in your modem and router can cause installation errors. Turn off your connecting equipment. Run a security scan to remove any viruses or malware. Temporarily update or uninstall any security programs that might mistakenly think the installer is a threat.

  1. Open the Blizzard desktop application.
  2. Click on the icon of the game you are trying to fix.
  3. Click under the name of the game and select "Scan and Repair."
  4. Click the Start Scan button.
  5. Wait for the repair to complete.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.