Part of the trouble seems to be generated by the "hybrid sleep" mode of Windows 8. This is evident by comparing the comments # 16 (hybrid sleep enabled) and # 18 (hybrid sleep disabled) for the bug #1042159 : https://bugs.launchpad.net/wubi/+bug/1042159
With hybrid sleep turned off, troubles due to Sleep mode are resolved but there is still the problem of "Turn on Fast Startup" in Windows 8 Power Options" placing the Win8 partition in hibernation state.
Part of the trouble seems to be generated by the "hybrid sleep" mode of Windows 8. This is evident by comparing the comments # 16 (hybrid sleep enabled) and # 18 (hybrid sleep disabled) for the bug #1042159 : https:/ /bugs.launchpad .net/wubi/ +bug/1042159
With hybrid sleep turned off, troubles due to Sleep mode are resolved but there is still the problem of "Turn on Fast Startup" in Windows 8 Power Options" placing the Win8 partition in hibernation state.