Vista Discussion on running Windows Vista on the Dell Mini

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cmarcho cmarcho is offline
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Default Info regarding WinSxs directory and space req in Vista/Win 7 - 11-20-2008, 02:36 PM

Some interesting info regarding the WinSxs directory and the perceived high disk space requirement for it....

We definitely get a lot of questions about the new (to Vista) Windows SxS directory (%System Root%\winsxs) and many folks believe this is a big consumer of disk space as just bringing up the properties on a newly installed system shows over 3000 files and over 3.5 GB of disk consumed. Over time this directory grows to even higher numbers.
In practice, nearly every file in the WinSxS directory is a “hard link” to the physical files elsewhere on the system—meaning that the files are not actually in this directory. For instance in the WinSxS there might be a file called advapi32.dll that takes up >700K however what’s being reported is a hard link to the actual file that lives in the Windows\System32, and it will be counted twice (or more) when simply looking at the individual directories from Windows Explorer.

While it’s true that WinSxS does consume some disk space by simply existing, and there are a number of metadata files, folders, manifests, and catalogs in it, it’s significantly smaller than reported. The actual amount of storage consumed varies, but on a typical system it is about 400MB.
Also, some good news regarding the footprint required for Windows 7:

In conclusion, as we develop Windows 7 it’s likely that the system footprint will be smaller than Windows Vista with the engineering efforts across the team ......
This is certainly good news as we struggle with disk space on our netbooks.... You can read the whole article here: ... space.aspx

Black Mini 9 - Runcore 64 SSD - 2GB Ram - 1.3 Cam - BT - Windows 7
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