Multiple programs cannot be installed at the same time in Windows 10. You can install one software after another, but several installers cannot be executed at the same time. So, How to Fix Another program is being installed Error on Windows 10?

Because an app creates directories and writes to the registry when it is installed, this is the case. It is not possible to interrupt or execute the process in parallel with another similar process. The possibilities of making a mistake would be just too high.

How to Fix Another program is being installed Installer Error on Windows 10

Another program is being installed Error

If you’re trying to install an app on Windows 10 and the message “Another software is being installed…” appears, it’s because Another program is being installed Error. The term ‘installer error’ could refer to any of the following:

  • An app is actively being installed and the installation isn’t complete
  • An app is being updated, uninstalled, or repaired
  • The installation has finished but the installer itself did not quit
  • The installer was run but the process did not initiate
  • An installer is preparing to install an app
  • The installation has finished but a system restart is pending

How to fix Another program is being installed Error

Regardless of what caused the problem, you can resolve it by following the steps below.

1. Wait for the installation to complete

While many apps display an on-screen progress bar as they move through the installation process, not all of them do. Some apps, particularly those that install new libraries, may do so invisibly. If you get the message ” Another program is being installed Error “, click OK. If you get an installer problem, wait at least fifteen minutes for the installation to finish before trying to install another software.

2. Manually quit the installation

You can manually terminate the app if it hasn’t finished installing after a reasonable period of time. You should be aware that this may cause the program to not install properly or at all.

  1. Right-click the taskbar and select Task Manager from the context menu.
  2. Go to the Processes tab. 
  3. Look for the installer/EXE/MSI process and select it.
  4. Click the End task button at the bottom right.

How to Fix Another program is being installed Installer Error on Windows 10

3. Eject installation media

Remove any installation media, such as a DVD, CD, or USB drive, that you have linked to the system. This may most likely cause the installation process to be interrupted, but it will allow you to install the second program.

4. Restart the system

If all else fails, the system can be restarted. All running processes will be terminated when the system restarts, and they will not run again when you return to the desktop.

5. Run a virus scan

The app you’re trying to install could be malicious, which would explain why it won’t install or why it’s blocking other apps from installing. Use Windows Defender to run a virus scan.

  1. Open Windows Defender.
  2. Go to the Virus and threat protection tab.
  3. Click Scan Options.
  4. Click Scan Now.
  5. Scan the entire system and remove any infections that are found.

It’s also a good idea to scan your system with MalwareBytes’ free edition.

How to Fix Another program is being installed Installer Error on Windows 10


It’s possible that an app is corrupted if it never finishes installing. You can try downloading it again and running the installer, but there’s a good probability the installer isn’t working properly. There isn’t much you can do in this situation. Find a replacement app and delete any app components that may have been installed.