We're having stability problems in our site - it becomes unresponsive to periods of a few minutes or about 20 minutes.
While investigating the issue, I noticed that the server is not being maintained - for example, no Windows updates were ever installed (in about a year an a half).
Our administrators claim that there were no relevant stability related updated released anyway, so the updates aren't important.
Technical background: We have an Asp.Net MVC 4 site on IIS 7.5, running on Windows Server 2008 R2.
Can Windows Updates affect stability?