I was trying to install itunes on windows 7, 64 bit, i got that error. the solution i found is to install VC++ runtime, i tried installing 2005 and 2008, got that same error, tried installing 2012, it said not a valid win32 program or something like that.
I tried installing .net framework 4.5, didn't fix it. I saw this question. I see nothing in the
Turn Windows features on or off section and i tried installing without .net framework and with it, no difference, the presence or absence of the framework doesn't make any difference, the laptop didn't have .net framework before, i got this error, installed it to see what happens, the error is still the same.
Another solution is to use Microsoft fix it, but didn't fix it :)
Note that earlier today i had this problem on the same laptop, fixed that, now i have this, maybe they are related, i don't know.
I see no such thing as
Windows Module Installer