I have developed a Wix setup which is started by a managed bootstrapper (burn) which also installs some prerequisites. Everything works fine until the Windows 10 release of version 1909.
Every time I press the install button the setup hangs up after the dialog which is asking for admin rights. The logger displays these last lines.
Log:
[1A3C:0E38][2020-01-27T13:23:22]i201: Planned package: VC12Redistx64, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: None, cache: Yes, uncache: Yes, dependency: None
[1A3C:0E38][2020-01-27T13:23:22]i201: Planned package: MainSetup, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
[1A3C:0E38][2020-01-27T13:23:22]i299: Plan complete, result: 0x0
[1A3C:0E38][2020-01-27T13:23:29]i010: Launching elevated engine process.
If I click twice on the hanging application it crashes completely. There is also a error in the event log but it is not really useful. It only says that the application hanged up.
I have found out one interesting thing. This only appears when I have turned on the UAC. The level doesn't make a difference. Only if I turn off UAC completely it works as excepted.
Has anyone a explanation for this behavior? If I use a earlier version of Windows 10 there is no problem. Has Microsoft changed something in Version 1909 concerning a installer?