Hi @jimuseinobj , It is required to return the license before upgrading the operating system in order to activate it again successfully. More information on license return can be found at the below link : https://community.flexera.com/t5/InstallShield-Knowledge-Base/Deactivation-of-InstallShield/ta-p/5281   As you have already upgraded your system, now you can contact Flexera support to return the license from the back end. You can get the details from the following links depending on your region: https://community.flexera.com/t5/Support-Information/Support-Contacts/ta-p/94720   Or you can also contact via mail, support@flexerasoftware.com. ... View more

jimuseinobj wrote: hi, i buy a InstallShield 2018 Express Perpetual License, which is $749.00. i use InstallShield to build a java based program. my case is if the setup.exe find local Windows does not install JRE, then it will install JRE firstly. if it finds, then InstallShield will bypass the JRE isntallation and install my jars directly. previously when i use a trial InstallShield2018SP1PremierComp.exe, i test my case and successfully. then i buy a license, but now i find this JRE check process fail. it always install the JRE. when i use trial InstallShield, i can create my JRE prerequisite in "Redistributables" function. and my "JRE 64bit.prq" content is: now i input the license code, which is "Serial Number" in the order email. i find the UI has changes. i can not add new prerequisite, and when i try to edit my prerequisite by right click it, i find "Change Object Settings" menu is disable and gray. who can tell me why and how to implement my case? Hi, InstallShield2018SP1PremierComp.exe is the trial version of Premier version of installshield but which ever you had purchased is of express. Thereby you are able to see ambiguity Hope it helps, Thanks, Jenifer ... View more