we would like to know what is the max no of processors supported on MS win 2008 R2 with Sp1 with hyper V. On one page we have https://technet.microsoft.com/library/dn792027.aspx  saying it is 64 processors and on other pages it is 4 pages . please let us know what is the exact count . does anyone has made more than four processors with hyper V on win 2008 r2 with sp1