For v. 4.15.3 here: What happens here is that I have no permissions. It’s asking permissions for Epic Games / engine files (in particular the timestamp for now). Since I cannot change files on C and right clicking on that .uproject file is not an action that I can modify to give Administrator rights, I can’t regenerate my project files again. I tried using the Admin account in my system (windows 7) and it didn’t work either.
I found it’s trying to run BuildTool.exe and it fails having permissions. So I granted permisions to this .exe, and now when I try to regenerate the project files it tells me It couldn’t create the process BuildTool.exe.