Does using no WIM/ESD compression perform any differently after installation?

Sinical

Sinical

New Member
Does it perform any better or is it less common to return errors or bug out? I know it might sound like a dumb question but I guess I'm paranoid a little and I also really like to squeeze the most out of my hardware. And I definitely don't mind sacrificing a few extra GB for my OS to do it. Generally my method is to change the "<WimCompression>" parameter from the default 2 to 0 in the settings.xml


This removes all compression operations and only leaves the cleanups right?
 
There's no difference in the installed images. Here's the best analogy: if you made a Self Extracting Archive (SFX), and disabled file compression on one version -- would the extracted files be any different?

Setup boots from the boot.wim image, mounts the filesystems, and extracts the install files from the WIM or ESD. After it's done extracting, the install file is no longer used. Everything continues from the local copy of Windows, which reboots to continue the next phases.

ESD compression is offered to reduce the file size for network transfer (MS downloads) or to fit on smaller USB drives. Whatever performance gains you think you're getting are not much, decompressing archives takes far less CPU than the time spent compressing it.
 
I think you aren't really interested in this compression setting, rather you are looking for performance enhancing tweaks, which this is not.

Check out mine and Garlin's reply to your original post here:
https://www.ntlite.com/community/index.php?threads/wim-compression-type-values.3026/#post-30288

Then check out the suggestion I made, based on it:
https://www.ntlite.com/community/index.php?threads/set-wim-compression-levels.3173/

After that, go check out this post which I think is what you are actually wanting info on:
https://www.ntlite.com/community/in...ws-iso-dvd-folder-size.2289/page-2#post-26706

I get the feeling that the 2 registry keys I posted in the last link are what you are truly looking for.
 
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