Is Madobe Nanami no Windows 7 de PC Jisaku Ouen Commercial!! hentai?
No
Rated G (All Ages) on MyAnimeList and not tagged as Hentai.

CM · 2010 · 1 episodes · G - All Ages
Comedy
Madobe Nanami is a computer store employee who instructs customers on how to magically assemble their PCs. She also shows them some of the features of Windows 7.
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