This question was inspired by Bob's comment to my answer here.
On boot, windows writes files to the hard drive (I imagine this to be the case, as it has a way of detecting if the boot was previously interrupted by a hard power-off, and I am sure many other things).
But assuming that there is a "smooth" boot, where there are no error, etc, and no logon scripts that run, and things like that, about how much (a few KB, a few MB, a few GB) data gets written to the drive?
For simplicity's sake, assume that:
- hibernation is turned off
- windows 7
- pagefile is turned off (does this matter right at boot, or only later?)
How could one go about measuring this? Are there resources that have this information?
Answer
Try WinBootInfo. According to them,
WinBootInfo is the advanced Windows Boot Analyzer that logs drivers and applications loaded during system boot, measures Windows boot times, records CPU and I/O activity during the boot, and much more!
Looking at a screenshot, there is a field called "Total I/O Data Write" (showing a few MBs in the screenshot)
Or try hIOmon. See Boot Logging Support.
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