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#11
OEM reinstall media usually contains the oem generic key and xml file.
The regular MS installation media does not.
Look inside \sources\$OEM$\$$\setup\scripts\
That is the standard DELL win7 Pro key - it only works if combined with the correct xml file and slic table in the bios.
If you have the OEM slic table in bios:
EITHER
Use OEM reinstall media
OR
Use regular MS install media and 7oeminstaller
OR
Use regular MS install media and the key on the sticker that came with the machine ( if you can find and read it)