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Versions of ntdll.dll going backwards - Win 7 x64 Ultimate & Pro
I have done two recent Windows 7 x64 re-installs or catch-ups (150+ WU behind). I noticed that prior to ~23-Oct-2013 my C:\Windows\SysWOW64\ntdll.dll was at Version 22436. Now it is at Version 18247. One system was x64 Ultimate, the other was a fresh install of x64 Pro which first wanted an update of WU itself. Everything did eventually install and catch-up on both systems (HP Pavilion dv7t-6100 and Dell Precision M6550 laptops).
About ~12 other files in SysWOW64 have the same date/time stamp so obviously a WU action.
All scans (sfc, mbam, mse, etc) come back clean.
Is this normal behavior; to go 4-5 version backwards? I spent time with MS Tech Support and the engineer there thought not. But he was unwilling or unable to cross reference which system files change with which particular WU / KB. Got a bit hostile too. Maybe he was not cleared to check this out
Anybody have clues or insight?
Thanks,
--JCN