Why some windows product family like Windows 2008 are removed from acquire patch ui if prior windows patch acquisition fails during import?
TPM 7.2 GA version released in June 2010 and at that time some OS like Windows 2008 was not supported by TPM.
Hence , 2008 was not in product list for default device model.
But, TPM is structured in such a way , If you will select Product family as Windows and won't select anything in Software product list.
Patch acquisition will acquire patches for all the Windows operating system released by Microsoft and next time those software product will appear as option in software product list.