I have a new PC running Windows 7 Professional 64 bit. I have an issue installing IIS - it goes through the install process, but at the end tells me "not all components could be installed", with no additional information given. There is no sign of an error in the install log or in event viewer.
However, at this point, IIS is installed and working! I can run IIS manager, browse to localhost and see the default page, but at the next reboot the system rolls back and th einstall vanishes.
I have tried installing II using the Windows Components section in Add/Remove Programs, I have also tried the Web Platform Installer and using the command line, all with the same end result.