WIM Sizes

Windows_logoWindows Image sizes continue to get bigger and bigger.  I recently recreated my WIMs that I use for testing and applied all important updates through March of 2015 before taking the capture (using MDT of course).  For Windows 7 (both 32-bit and 64-bit), I started with the latest available Windows 7 Enterprise with SP1 ISOs.  For Windows 8 (both 32-bit and 64-bit), I started with the latest available Windows 8.1 Enterprise with Update (released in December 2014).

Prior to the capture, I ran the Disk Cleanup utility to remove any unnecessary files and reduce the size of the final captures.  Below is the end result with a comparison of the original ISO sizes.

OS WIM Size ISO Size
Windows 7 ENT SP1 x86 3.29 GB 2.26 GB
Windows 7 ENT SP1 x64 4.93 GB 2.96 GB
Windows 8.1 ENT with Update x86 2.93 GB 2.84 GB
Windows 8.1 ENT with Update x64 3.86 GB 3.85 GB

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