Fixed: Waiting on Another Installation or Update Error

Amanda Gao
3 min readMar 18, 2020


When you are trying to play some Blizzard games on app, the launcher might show you a message: Waiting on another installation or update. It is a normal prompt indicating that there are other pending installations or updates. However, some users complain that there are no such things ongoing when they get the message.

This is a common issue that may appear on the Blizzard games. If you are also experiencing “Waiting on another installation or update” on, don’t panic. I have put together several feasible solutions to this issue. Update Agent is a process designed to look for updates for the client and install the available updates automatically. Sometime, this process might become buggy and thus lead to “waiting on another installation or update” issue. So, you can try ending the process to fix the issue.

Step 1: Close your program.

Step 3: In Process tab, choose Update Agent process (Agent.exe) and click End task.

After killing the process, exit the tool and restart your client to check if you can play games without the error.

Fix 2: Reinstall the Launcher

If you receive Blizzard waiting on another installation or update error, it’s possible that there are some bugs on the specific release of launcher you are using. In this case, you can reinstall the launcher to perform a manual update, which is also a recommended solution from the official.

Step 2: Navigate to Programs > Programs and Features.

Step 3: Choose client and click Uninstall button to uninstall the program. There might be a dialog requiring you to confirm the operation. Just click Yes to continue.

Step 4: Go to the official website to download and install the latest version of launcher.

After that, the program should have been resolved.

Fix 3: Clean Boot Your Computer

Alternatively, you can clean boot your computer to deal with this problem. This operation will keep your away from the interference of third-party programs or services and enable it to update properly. To do that, just follow the instructions below:

Step 3: Click Apply and OK to save the changes.

Once it’s done, restart your computer and open your client. Now, you should be able to play Blizzard games without the error under our discussion.

Fix 4: Revert DNS Settings to Default

If you have changed your DNS settings once, this method might be helpful to resolve Blizzard waiting on another installation or update issue. let’s have a closer look at this method:

Step 2: Double-click the network adapter you are using and then click Properties in the pop-up window.

After that, go to check if the mentioned error is fixed now. In addition, here are some other feasible solutions recommended by users. If all above methods fail to fix the issue, you can try the following ways:

  • Scan for virus and malware
  • Disable antivirus
  • Disable Proxy or VPN
  • Update your Windows

Originally published at on March 18, 2020.