This is the encrypted esd file that is downloaded by Windows Store whenup grading from 8.0 to 8.1. Luckily a few awesome guys at MDL worked out the decryption process and made up a script with a few options.
9600.17050.winblue_refresh.140317-1640_x64fre_client_coresinglelanguage_en-us-ir3_csla_x64frer_en-us_esd.esd
Size: 2.47 GB
Languages: English
SHA1: 708EEAA63367A2BD072F499375AAC67793920071
Instructions:
1) extract the 7z file to same directory as esd file
2) run admin command prompt and navigate to the directory
3) run decrypt esdfilename
There's not really any benefit to using wim file over esd file unless you need to modify the installation. ESD file is faster and smaller. WIM file is mountable, but larger.
