https://forums.autodesk.com/t5/autocad-forum/installation-unsuccessful/m-p/5872619#M306435 <P>Hi&nbsp;@Anonymous</P> <P>&nbsp;</P> <P>Please disable your firewall and anti-virus programs, and re-download the software from our <A href="http://autodesk.creativevirtual15.com/autodesk/bot.html?isJSEnabled=1&amp;businessArea=Root.Front%20Desk&amp;startContext=Root.Front%20Desk" target="_blank">Virtual Agent</A> (click on Download Links, choose product and version). Then try the installation again.</P> Thu, 22 Oct 2015 01:37:59 GMT lynn_zhang 2015-10-22T01:37:59Z