- Blizzard's Battle.net launcher is the central hub for all Blizzard games but users have reported issues with the client not opening on Windows 10 machines.
- If Battle.net launcher is not opening on your PC, you won’t be able to play any of Blizzard’s games. This can be a major problem, but fortunately, there’s a way to fix this problem once and for all.
- We are constantly covering Battle.net news and we will provide fixes for the most common problems as they arise. To see them, head over to our dedicated Battle.net page and don't forget to bookmark the page!
- Our gaming hub is the place to be if you want to keep up to date on the latest news, reviews, guides and fixes for the hottest games of the moment.
Blizzard’s Battle.net client is a sturdy and reliable piece of software. It’s there for ages and it’s the best indicator of a remarkable approach Blizzard takes when it comes to game distribution.
However, even the top-notch game launcher/desktop client runs into problems occasionally. Some users reported that Battle.net launcher won’t even start or crashes unexpectedly while initializing.
Since there’s a variety of possible culprits for this occurrence, we made sure to cover all of them. So, if Battle.net launcher won’t open after several tries, don’t worry — you’re at the right place. The enlisted solutions can be found below.
If Blizzard app won’t open, fix it with these solutions
- Run Battle.net launcher as admin
- Clear launcher’s cache
- Check the antivirus and firewall
- Disable background programs
- Enable the Secondary Logon service
- Reinstall the Battle.net launcher
1. Run Battle.net launcher as admin
- Navigate to C:\Program Files (or Program Files x86)\Battle.net.
- Right-click on the Battle.net Launcher.exe and open Properties.
- Choose the Compatibility tab.
- Check the ”Run this program as an administrator” box and confirm changes.
Sometimes Battle.net launcher isn’t opening because you lack administrative privileges. This is a relatively common problem with many applications, but fortunately, it can be easily solved as we’ve seen above.
Additionally, since the stuck mostly occurs while updating the client, we advise you to check your connection settings. Here are some steps you can take to troubleshoot the connection issues:
- Flush DNS.
- Use a wired connection.
- Restart your router or modem.
- Reset router and/or modem to factory settings.
- Run Windows Internet Connection Troubleshooter.
Without the proper administrative permissions, Battle.net launcher won’t work as intended or won’t even start. So, what you’ll need to do is to grant it the administrative permission and make sure that it can connect freely to dedicated servers.
After performing all the steps from above, the issue should be resolved. In case the problem is still there, it means that your network connection is working properly, and you can move to the next solution.
2. Clear launcher’s cache and delete Tools folder
Just like any other application, the Battle.net launcher stores a lot of secondary data responsible for its seamless processing and configuration.
Now, every given file can get corrupted or incomplete and thus the related program will fail. Sometimes you can repair those files, but, more times than not, you’ll need to delete them and let the application rebuild them from a scratch.
That’s just what you’ll need to do with the Battle.net launcher in order to address this issue.
Now, follow these steps to delete Cache and Tools folder in Program Data:
- Right-click on the Taskbar and open Task Manager.
- Kill these processes:
- Game process
- Agent.exe or Blizzard Update Agent.exe
- Blizzard Battle.net
- Close Task Manager and press Windows key + R to open the Run command line.
- In the command line, type C:\ProgramData and press Enter.
- Find Battle.net folder and delete it.
- Start Battle.net again and look for changes.
3. Check the antivirus and firewall
We already stressed the fact that the Battle.net launcher tends to fail to start if there’s no connection. But, most of the time the problem isn’t connection-related.
Sometimes the third-party antivirus or firewall are preventing the Battle.net launcher to reach the dedicated servers and update.
This isn’t exactly a rare occurrence so it’s well advised to either disable the antivirus or to create an exception (exclude the Battle.net folder). Either way, we don’t recommend to completely remove the antivirus due to obvious security risks.
Furthermore, there’s also a Windows Firewall as a possible reason for Battle.net’s inability to start. If you’re not sure how to allow the Battle.net launcher to communicate through Windows Firewall, follow the steps below:
- Type firewall in the Windows Search bar, and open Windows Firewall.
- Click on the ”Allow an app or feature through Windows Firewall” in the left pane.
- Choose to Change settings.
- Click on the ”Allow another app” button.
- Click on Browse and navigate to C:\Program Files (or Program Files x86)\Battle.net.
- Add Battle.net Launcher.exe and confirm changes.
After that, Battle.net launcher halt should be resolved. If that’s not the case, then, by all means, check the last two steps.
4. Disable background programs
Some background programs might prevent the Battle.net launcher to start. There’s a large variety of applications that can affect this desktop client, and it’s often stressed out by Blizzard support to try and disable them before everything else. Now, even though you’re aware of this, it can take a lot of time to individually disable programs and look for improvements.
So, the best way to find out is some other third-party program preventing the Battle.net launcher is to try the selective startup mode.
Here’s how to do it:
- In the Windows Search bar, type and open System Configuration.
- Select the Selective startup.
- Uncheck the ”Load startup items” box.
- Now, navigate to the Services tab.
- Check the ”Hide all Microsoft services” box.
- Click on the Disable all and then OK to confirm changes.
- Finally, restart your PC and start the Blizzard again.
With this, you’ll at least be in the clear in regard to the negative impact of third-party programs. If the client starts — good, if not — move to additional steps.
5. Enable the Secondary Logon service
Another rarely used service and another possible solution for your problem. Namely, Secondary Logon service is there to avoid multiple logon-logoff actions, so you can basically run a certain program with administrative permissions from the non-administrator account. And, for some peculiar reason, the Battle.net launcher heavily depends on this service so you’ll need to enable it.
In order to do so, follow the steps below:
- Type services in the Search bar and open Services.
- Navigate to the Secondary Logon service, right-click on it, and open Properties.
- Change the Startup type to Automatic.
- Start the service and confirm changes.
- Restart your PC in order to apply changes.
6. Reinstall the Battle.net launcher
Finally, if all of the previous solutions were futile, the reinstallation is our last resort. A lot of users plagued by this problem tried to resolve it by reinstalling the desktop application right away. However, even though you remove the installation files from the Program Files folder, there are still files residing in the Program Data folder.
So, basically, everything stayed the same once the app is reinstalled. Therefore, in order to completely uninstall the Battle.net desktop app and resolve the problem, follow these instructions:
- In the Search bar, type control and open Control Panel.
- Choose Category view and open Uninstall a program.
- Uninstall a Battle.net desktop client from your PC.
- Now, press Windows key + R to open the Run dialog box.
- Type C:\ProgramData in the command line and press Enter.
- Delete the Battle.net folder.
- Restart your PC.
- Download the Battle.net installer here and install it.
That should resolve your issues and you should be able to run the Battle.net launcher and its respective games without trouble. In case you’re still stuck with the problem, the only thing we can suggest is to reinstall the system. The whole procedure is explained in this article so make sure to check it out.
FAQ: Battle.net issues and questions
- How do I reinstall battle net launcher?
In order to uninstall the Battle.net launcher, head over to Control Panel > Programs and Features > select Battle.net from the list > click Uninstall.
- Why is Battle.net not downloading?
If you’re having trouble downloading the Battle.net client, check your internet connection, make sure you have enough free space to download the client and temporarily disable your antivirus and/or firewall.
If you have questions regarding the Battle.net launcher or alternative solutions, feel free to tell us in the comments section below.
Editor’s Note: This post was originally published in March 2019 and has been since revamped and updated in March 2020 for freshness, accuracy, and comprehensiveness.