Hi @Keyko_0504
Failing of ssms setup may not have anything to do with windows update service.
Widows update service starts and stops automatically when windows downloads and installs the updates in the background.
Installing ssms is a different thing.
To check why its failing check the logs for setup, you see there was a link saying click here for the log file in your screenshot thats where you will find the reason of problem/failure.
We will need to see that reason or log to help you in resolving this problem.
For now its just saying it is unable to find some file we need to know which one.
Also try running setup again by using right click and then Run as Admin on setup file.
Regards,
Shivam