If Windows Installer Service is missing or not available you can try our recommended solutions below in no particular order and see if that helps to resolve the issue. Enable Windows Installer Service ...
Right-click on the Task Manager, and switch to the Services tab Locate Trusedinstaller or Windows Installer Service, right-click, and start. If it doesn’t work, right-click and select Open Services.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback