1. To install the service in the system service, first open the "Control Panel" program in the start menu.
2. Then in the control panel, select the system function "Administrative Tools".
3. After entering the management tool window, select the "Service" item.
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4. All the system’s services are here. Drag the scroll bar and find “Windows Installer” in the right window. " item, the default "Startup type" of this item should be "Manual", but it displays "Prohibited", so you need to modify it and double-click.
5. In the "Windows Installer Properties" window that opens, select "General", and then select the "Manual" or "Automatic" option in the drop-down box of "Startup Type". It is recommended to use "Manual". It's better to do this before pressing the "Apply" button.
6. After pressing the "Apply" button, the "Start" button under "Service Status" changes from the gray unavailable state to the usable state. Just keep it in this state. No need Start, because when installing the application, it will automatically start temporarily and then shut down. This saves memory resources. You only need to press OK.
In this way, the installation service will be started successfully, and the application can be installed.
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