I have been trying to install Exchange Server 2016 since three days.
it fails at the step 7 which says - ASEntsig.msi cannot be found int the source. The file i have locatied and tried to install but not able to do it.
Its a single small windows server 2012 r2 which is running with AD DS and IIS server, Sql Server.
it had Exchange Server 2013 installed previously. To change the domain i had removed AD DS and reinstalled it.
I went to uninstall it manually by deleting files in the IIS, V15 folder in 'C'
drive. removed registry entries, and exchange entries which was there in config file in intserv.
This is the link i referred for removal - https://www.youtube.com/watch?v=2Bv3EEIe6uo
Now it has stunk on step 7 which is giving the below error.
"the installed product does not match the installation source(s), until a matching source is provided or the installed product and the source are synchronized, this action cannot be performed".