I am getting below error when upgrade CRM 2013 to CRM 2015 by using in place upgrade method. I used account with all rights and I could install CRM 2013 by this account without any error.
I tried again with repair option but it does not work. then I uninstalled CRM. I could install CRM 2015 without any error by using same account. I do not know what is issue. This is test upgrade so I want to make sure there is no error
when live upgrade.