I upgraded to latest development version and now AWM keeps exiting. It starts up, shows UI for few seconds and then exits.

Can't even un-install it, get a file not found error. The install cleanup solution at https://support.microsoft.com/en-us/help/17588/windows-fix-problems-that-block-programs-being-installed-or-removed is now 404.

So now won't start or re-install.

Please help!