Unable to update Plesk on Windows: ERROR: The installation of the package 'aspnetcoremodule-v2' failed with code 1603

Symptoms

• Plesk Obsidian running on a Windows Server operating system
• An attempt to update Plesk reveals the following error:
  

  CONFIG_TEXT: ERROR: The installation of the package 'aspnetcoremodule-v2' failed with code 1603. (upgrade: Upgrading Microsoft ASP.NET Core Module V2...)

Cause

The error appears, because Microsoft ASP.NET Core Module V2 package could not be upgraded at the time of the attempt. The error code 1603 indicates that the cause for the failure at the time of the incident was one of the causes listed in the following official Microsoft article:

MSI installation error 1603 - Windows Server | Microsoft Learn

Resolution

In order to resolve the issue, retry the upgrade attempt for this package by executing the following steps:

1. Connect to your server via RDP

2. Start a Command Prompt as the Administrator

3. Initiate the update Plesk packages by executing the following command:

C:\> plesk installer update

4. If the subsequent attempt for package upgrade is successful, you will receive an output that is similar to the following:

CONFIG_TEXT: ...
Determining the packages that need to be installed.
Downloading file ASPNETCORE-WIN/thirdparty-windows/AspNetCoreModuleV2_x64_18.0.23305.msi: completed.
Installing packages
Upgrading Microsoft ASP.NET Core Module V2...
INFO: Clean install: no
INFO: Last executed task: 2023-07-11-09-33-40
INFO: All found tasks:
2012-01-13-18-56-00
...
2023-07-11-09-33-40
INFO: Applicable tasks:
2019-02-18-14-09-55
2019-04-25-14-46-58
2020-03-19-17-13-39
INFO: Executing upgrade task: 2019-02-18-14-09-55 (forced)
SUCCESS: Upgrade step 2019-02-18-14-09-55_InstallEssentialExtensions.php was successfully done.
INFO: Executing upgrade task: 2019-04-25-14-46-58 (forced)
SUCCESS: Upgrade step 2019-04-25-14-46-58_ReportUsage.php was successfully done.
INFO: Executing upgrade task: 2020-03-19-17-13-39 (forced)
SUCCESS: Upgrade step 2020-03-19-17-13-39_UpgradeExtensions.php was successfully done.
Attempting stop...
Internet services successfully stopped
Attempting start...
Internet services successfully restarted
Attempting stop...
Internet services successfully stopped
Attempting start...
Internet services successfully restarted
SUCCESS: Upgrade step Plesk\Upgrade\Action_UpgradeExtensions was successfully done.
Launching component and product checkers...
Downloading file pool/release/PLESK-WIN_18.0.55_12738/reportupdate.exe: 0%
Downloading file pool/release/PLESK-WIN_18.0.55_12738/reportupdate.exe: 100% was finished.
The changes were applied successfully.

If the output indicates success, all necessary Plesk packages are updated and the issue is resolved. 

If the output is different, execute bootstrapper upgrade repair (post upgrade steps for updated packages) by running the following command:

C:\> plesk sbin upgrade --repair

Afterwards, the Microsoft ASP.NET Core Module V2 should be updated successfully