error opening website

hi I have unusual problem you might say. I can't open microsoft.com , I've checked file hosts located somewhere in windows/system32/drivers .. and its not blocked from there, what else could cause this problem, I need to download microsoft visual studio and I can't cause I can't open the website, since its a web installer its mendatory. any ideas ?

Thank you

It would help to know which version of M$ Windows, which browser and version, what virus scanner installed, and whether other websites work ok.
In general an intercept on microsoft.com (or the M$ updates websites) is a warning sign that your PC may have been compromised.
It would help to see the actual URLs and the actual error messages.