dism cleanup-image

Brutser

New Member
using Windows LTSC 1809 x64 image (original install.wim size 3.84GB):

when integrating updates with following commands:
dism /export-image /sourceimagefile:C:\WIM\install.wim.orig /sourceindex:1 /destinationimagefile:c:\WIM\install.wim
Mount-WindowsImage -ImagePath "c:\WIM\install.wim" -Index 1 -Path "c:\mount" -ScratchDirectory "c:\temp"
Add-WindowsPackage -PackagePath "c:\updates\Servicing" -Path "c:\mount" -ScratchDirectory "c:\temp" -LogLevel WarningsInfo
Add-WindowsPackage -PackagePath "c:\updates\Flash" -Path "c:\mount" -ScratchDirectory "c:\temp" -LogLevel WarningsInfo
Add-WindowsPackage -PackagePath "c:\updates\Micro" -Path "c:\mount" -ScratchDirectory "c:\temp" -LogLevel WarningsInfo
Add-WindowsPackage -PackagePath "c:\updates\MonthlyCU" -Path "c:\mount" -ScratchDirectory "c:\temp" -LogLevel WarningsInfo
...
Save-WindowsImage -Path "c:\mount" -ScratchDirectory "c:\temp"
Dismount-WindowsImage -Path "c:\mount" -ScratchDirectory "c:\temp" -CheckIntegrity -Save


Doing this results in wim.install size of about 5.1GB (already I feel that is way too big considering the total updates size)
On the line where the dots (...) are, I normally enter:

Dism /Image:c:\mount /Cleanup-Image /AnalyzeComponentStore (which will return that we need to do a clean-up)
Dism /Image:c:\mount /Cleanup-Image /StartComponentCleanup /ResetBase

After this when I perform again:
Dism /Image:c:\mount /Cleanup-Image /AnalyzeComponentStore >> this will now say there is no clean-up needed and the winsxs is shrink by ~2-3GB or so.

Then when dismounting and completing the process, the resulting install.wim is 5.4GB (!!!) - even bigger than without these clean-up commands.

Anyone can replicate this process and let me know if this is not just happening with me?
Any expert can think of a reason and maybe even know a solution to this?

Thanks!
 

Brutser

New Member
5.4gb manually? yeah, thats about right.
Questions remain:
1. why the size grows when doing the dism clean-up?
2. also out of curiosity why does the wim file grow so much in size with the updates integrated to begin with?
(sorry to repeat my first post in short here, see it as nice summary lol)
 
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