I’m not exactly sure what the “Start BitCoin on window system startup” is suppose to do?
In Windows, it should put Bitcoin.exe into “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run” for the system registry… or as an alternative into “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run”
I don’t see either happening, although it did get put into the “Startup” folder. That is so Windows 95ish (just kidding… Microsoft has so screwed this up that it isn’t even funny). I would recommend the registry settings for a number of reasons including the fact that most software puts the startup in that location, even though I personally find the startup folder to be more attractive and how most software on Windows should behave.
I haven’t done a full forensics with this new version in Windows, but the install seemed to go without a hitch for me… using the Windows install.