A long time ago, I did a post about Working with the restart behavior of Applications in ConfigMgr 2012. That post is still being read pretty well. Based on the interest of that post, and the introduction of nice new features to the Win32 apps, I thought it would be a good idea to redo that post for Microsoft Intune. Before an IT administrator had to be creative to work with, or work around, the restart behavior of Win32 apps. Either by wrapping installations and capturing the exit code, or by tuning the translation of an return code. With the latest adjustments to the Win32 apps, within Microsoft Intune, the IT administrator has more options to actually work with the return code of an Win32 app installation. These configuration options are similar to the configuration options within the app model of ConfigMgr. In this post I’ll discuss the 2 layers that together define the restart behavior after the installation of Win32 apps.
When looking at the restart behavior after the installation of Win32 apps, the first thing that should be looked at is the return code after the installation. By default, when adding a Win32 app to Microsoft Intune, a list of standard return codes is added to indicate post-installation behavior (see figure below). These are often used return codes. When the Win32 app installation ends with a different return code, additional entries can be added. This configuration is available via [Win32 app] > Properties > Return codes.
Fore every return code a code type can be configured. The code configures the post-installation behavior of the Win32 app. The following code types are available and can be configured with the return code to apply the mentioned behavior:
- Failed – The Failed return code indicates that the Win32 app installation failed.
- Hard reboot – The Hard reboot return code indicates that the device is required to restart to complete the installation. Additional Win32 apps cannot be installed on the device without restart. The user will be notified about the required restart.
- Soft reboot – The Soft reboot return code indicates that the next Win32 app is allowed to be installed without requiring a restart, but a restart is necessary to complete the installation of the installed Win32 app. The user will be notified about the restart.
- Retry – The Retry return code indicates that the Win32 app installation is retried three times. The installation will wait for 5 minutes between each attempt.
- Success – The Success return code indicates the Win32 app installation was successful.
Enforce device restart behavior
The second thing that should be looked at is how the device will react on the configured return code. By default, when adding a Win32 app to Microsoft Intune, the default device restart behavior is set to App install may force a device restart (see figure below). This configuration will make sure that the device will restart after the Win32 app installation, if needed, but still in an acceptable manner. The restart behavior can be configured to respond to return code differently. That configuration is available via [Win32 app] > Properties > Program.
Figure 2: Device restart behavior
Multiple device restart behavior configurations are available. And all these configuration options have their own effect on the return code of the Win32 app installation. The following device restart behaviors are available and can be configured to apply the mentioned behavior (including a short explanation about the expected behavior):
- Determine behavior based on return codes: This option means that the device will restart based on the configured return code. With this configuration a Hard reboot return code will immediately trigger a restart of the device and a Soft reboot return code will notify the user that a restart is required to finish the installation.
- No specific action: This option means that the installation will suppress device restarts during the Win32 app installation of MSI-based apps. Effectively that means that parameters are added to the installation command line of MSI-based apps to suppress device restart. With this configuration any restart will be suppressed.
- App install may force a device restart: This option means that the Win32 app installation is allowed to complete without suppressing restarts. With this configuration a Hard reboot return code will notify the user that a restart of the device will be triggered in 120 minutes and a Soft reboot return code will notify the user that a restart is required to finish the installation.
- Intune will force a mandatory device restart: This option means that a successful Win32 app installation will always restart the device. With this configuration any successful return code will immediately trigger a restart of the device.
For more information about the Win32 app functionality in Microsoft Intune, refer to the documentation about Intune Standalone – Win32 app management.