Forum: Windows 7: Media Center & OS
Last Reply: skypilot (May 24 2013 11:02 PM)
Disk Boot Error No Hard Drives Showing Advice Needed
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ipguy - May 21 2013 10:33 PM
Why Windows 8 Will Boot Much Faster
The key difference for Windows 8 is that as with Windows 7, the user session is closed, but instead of closing the kernel session, it's hibernated. Compared to a full hibernate, which includes a lot of memory pages in use by apps, session 0 hibernation data is much smaller which takes substantially less time to write to disk. If youíre not familiar with hibernation, it's effectively saving the system state and memory contents to a file on disk (hiberfil.sys) and then reading that back in on resume and restoring contents back to memory. Using this technique with boot gives a significant advantage for boot times, since reading the hiberfile in and reinitializing drivers is much faster on most systems - 30-70% faster on most systems tested:
Itís faster because resuming the hibernated system session is comparatively less work than doing a full system initialization, but itís also faster because Microsoft has added a new multi-phase resume capability, which is able to use all of the cores in a multi-core system in parallel, to split the work of reading from the hiberfile and decompressing the contents. For those who prefer hibernating, this also results in faster resumes from hibernate as well.
Another important thing to note about Windows 8ís fast startup mode is that whilst it won't do a full ďPlug & PlayĒ enumeration of all drivers, it will still initialize drivers in this mode. Those like to cold boot in order to ďfreshen upĒ drivers and devices will be glad to know that is still effective in this new mode, even if not an identical process to a cold boot.
This new fast startup mode will yield benefits on almost all systems, whether they have a spinning HDD or a solid state drive (SSD), but for newer systems with fast SSDs it should yeild significant improvements which can be seen in the video below.
For more details visit blogs.msdn.com