I notice that Windows 10 seems to spend a lot of time "preparing to installer mises à jour" avant it en fait gets on avec it. J'ai aussi notez que for most of that time, the progress bar ne advance du tout. Like how it just maintenant stayed at 10% for a long time (Je n'ai pas clock it, but Je ne pense pas I'm exaggerating si je put it at a few *minutes*), ensuite jumped to 68%, relating to a single mise à jour.
Parce que the text alone is apparemment not clear enough, ici is a capture d'écran du specific Windows Mise à jour step that Je suis asking about (follow the link to see the full capture d'écran from which the below a été cropped). Notez que the capture d'écran was taken during a different mise à jour session than the one Je suis talking about dans le first paragraph, hence the percentage complete is different.
**Que fait Windows en fait *do* avec all this time?** What "preparations" are taking it such extreme amounts of time?
Notez que Je sun'est pas asking about the actual *installation* du mise à jour.
While the particular time that prompted me to ask this question was in a VM, I'm seeing similar behavior avec Windows 10 running on actual matériel, so Je ne pense pas c'est related seulement vers le fact that c'est running in a VM (even though that could perhaps be a factor).
Que fait Windows 10 do while it is "preparing to installer mise à jours"?
Re: Que fait Windows 10 do while it is "preparing to installer mise à jours"?
I've captured the Windows Mise à jour activity avec the `Microsoft-Windows-WindowsUpdateClient` ETW provider.
Ici I see **no** event prepare:
I seulement see `Start` and `Stop` of `Download` and `Install`.
I maintenant used WPRUI to [trace DiskIO](https://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-44-WPT-DiskIO-Analysis) and [CPU usage](https://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-42-WPT-CPU-Analysis) during the step "preparing to Installer Mises à jour".
Ici Je peux see that the TrustedInstaller is busy checking hashes (`wcp.dll!CCSDirectTransaction::VerifyFileHashes`) du mise à jour data:
and I see disk IO where TRustedInstaller.exe copies data to `C:\Windows\WinSxS\Temp\InFlight\` and `C:\Windows\SoftwareDistribution\Download\`.
So basically this "preparing to installer" is en fait the installation du mise à jour, so this an confusing output.
Avec 1809, Microsoft corrigé the wrong status and shows directly the correct "l'installation text":
Ici I see **no** event prepare:
I seulement see `Start` and `Stop` of `Download` and `Install`.
I maintenant used WPRUI to [trace DiskIO](https://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-44-WPT-DiskIO-Analysis) and [CPU usage](https://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-42-WPT-CPU-Analysis) during the step "preparing to Installer Mises à jour".
Ici Je peux see that the TrustedInstaller is busy checking hashes (`wcp.dll!CCSDirectTransaction::VerifyFileHashes`) du mise à jour data:
and I see disk IO where TRustedInstaller.exe copies data to `C:\Windows\WinSxS\Temp\InFlight\` and `C:\Windows\SoftwareDistribution\Download\`.
So basically this "preparing to installer" is en fait the installation du mise à jour, so this an confusing output.
Avec 1809, Microsoft corrigé the wrong status and shows directly the correct "l'installation text":