Stef said:
As I understand it, Fast Boot is no more than a super sleep mode. The
system still remains powered--not totally turned off as when
hibernating--but uses much less power than the traditional sleep mode.
However, if you leave a tablet or notebook in this state long enough,
the battery will run down. Fast Boot is Microsoft marketing hype.
Stef
This is a subset of all the options on your Windows 8 setup:
1) Select "Hibernate" from the menu.
Computer shuts down. Computer does not need to maintain a source
of power. You can unplug it if you want.
Windows 8 stores Kernel + Applications in the Hibernation file.
Windows 8 sets the hardware state bit (BIOS level), to hibernate,
so the BIOS immediately returns to the same boot disk choice on
the next startup (i.e. BIOS immediately starts restoring, rather
than listening to your pathetic attempts to change OSes).
2) Select "Shutdown" from the menu.
Computer shuts down. Computer does not need to maintain a source
of power. You can unplug it if you want.
Windows 8 stores Kernel in the Hibernation file.
Windows 8 sets the hardware state bit (BIOS level), to hibernate,
so the BIOS immediately returns to the same boot disk choice on
the next startup. [In my opinion, this is a design mistake, and
should not have been done that way.]
This option is a "Fast Boot". No applications will be running,
when you first see the desktop.
3) If you modify your OS, such that Fast Boot (2) is disabled,
then when you select "Shutdown", nothing is recorded. This
is termed a "Full Shutdown". On next boot, the BIOS goes
through all the normal boot selection options. Windows 8
kernel boots, by reading a gazillion small files from C:,
and so (3) is slower than (2).
The behavior in (2), is new to Windows 8. Other OSes, like WinXP,
use (1) and (3). WinXP doesn't have an option to just hibernate
the kernel (but you can fake it, by quitting all applications,
and then hibernating as in (1) ).
And all of the above, have nothing to do with Suspend To RAM,
which is an option for even faster restoration, based on
the session being stored in the RAM, and maintained by
+5VSB power source. Options in that case include the
classical "Suspend To RAM" S3, or the newer "Hybrid S3",
where for emergencies, the hibernation file also has the
session recorded in it. In the Hybrid approach, if you
accidentally turn the power off, you can still recover.
It's just slower. Best case, Hybrid S3 picks up from
the session stored in RAM, so most of the time, you
get fast startup.
I'm not even sure which OSes support the Hybrid S3 approach
(which is effectively a mixture of both S3 and S4 approaches).
Says here, it started with Vista.
http://en.wikipedia.org/wiki/Sleep_mode#Hybrid_sleep
Also, another source of confusion, there are *three* big
files in the root of C:, on Windows 8. But the smallest
of the three, isn't what you think it is. And since there
is no official documentation for this at Microsoft,
I can't say much more about it. Plenty of people have
*guessed* at the purpose of the files, but nobody at
Microsoft has verified it.
Paul