In this article, we will discuss the 0x80240016 SUS_E_INSTALL_NOT_ALLOWED error in Windows 10 and provide instructions on how to resolve it. This error typically occurs when the Windows Update service is unable to install updates due to certain restrictions or conflicts. Resolving this error is important as it ensures that your system remains up to date with the latest security patches and improvements.

Examples:

Example 1: Restart Windows Update Service

1. Press the Windows key + R to open the Run dialog box.
2. Type "services.msc" and press Enter to open the Services window.
3. Scroll down and locate the "Windows Update" service.
4. Right-click on it and select "Restart".
5. Wait for the service to restart and then try installing the updates again.

Example 2: Clear Windows Update Cache

1. Press the Windows key + R to open the Run dialog box.

2. Type "cmd" and press Ctrl + Shift + Enter to open an elevated Command Prompt.

3. In the Command Prompt window, type the following commands one by one and press Enter after each:

   net stop wuauserv
   net stop cryptSvc
   net stop bits
   net stop msiserver

4. Once all the services are stopped, navigate to the following directory:

   C:\Windows\SoftwareDistribution

   Note: If your Windows installation is on a different drive, replace "C:" with the appropriate drive letter.

5. Delete all the files and folders inside the SoftwareDistribution folder.

6. Go back to the elevated Command Prompt and type the following commands to start the services again:

   net start wuauserv
   net start cryptSvc
   net start bits
   net start msiserver

7. Close the Command Prompt window and try installing the updates once more.