File:Windows 8.1 Pro DSP ja box.jpg

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|Article = OS-tan

|Description = Cover of the computer software published by Techno-Alliance Co., Ltd. ({{lang|ja|株式会社テクノアライアンス}}, an IT marketing company) and Microsoft in Japan in 2013. The (normal) Memorial Pack of Windows 8.1 Pro DSP edition. From left to right:

• {{nihongo|Claudia Madobe|クラウディア窓辺|Kuraudia Madobe}} (voiced by Eri Kitamura,{{Cite web|url=http://internet.watch.impress.co.jp/docs/news/447923.html|title=MSバルマーCEOが講演、Windows Phoneについて「明日大きな発表」|last=|first=|date=2011-05-23|website=INTERNET Watch|publisher=Impress Corporation|access-date=2016-12-06}} official mascot of Windows Azure (cloud computing platform) by Microsoft Japan.)
• {{nihongo|Yu Madobe|窓辺ゆう|Madobe Yū}} (voiced by Asuka Nishi,{{Cite web|url=http://akiba-pc.watch.impress.co.jp/hotline/20121013/etc_ms3.html|title=Windows 8の萌えOSキャラ？「窓辺ゆう」と「窓辺あい」の記念パックが予告|last=|first=|date=2012-10-11|website=AKIBA PC Hotline!|publisher=Impress Corporation|access-date=2016-12-06}} unofficial mascot for promotion items of Windows 8 system builder edition by Techno-Alliance.)
• {{nihongo|Ai Madobe|窓辺あい|Madobe Ai}} (voiced by Nao Tamura, unofficial mascot for promotion items of Windows 8 system builder edition by Techno-Alliance.)
• {{nihongo|Nanami Madobe|窓辺ななみ|Madobe Nanami}} (voiced by Nana Mizuki,{{Cite web|url=http://akiba-pc.watch.impress.co.jp/hotline/20091024/etc_win7h0.html|title=「セブン博」開催、ウルトラセブンや水樹奈々が来場|last=|first=|date=2009-10-24|website=AKIBA PC Hotline!|publisher=Impress Corporation|access-date=2016-12-06}} unofficial mascot for promotion items of Windows 7 system builder edition by Techno-Alliance.)

|Source = Self-scanned copy

|Portion = Front

|Low_resolution = Yes

|Purpose = To provide an image of Madobe family described at OS-tan#Windows 8.1(as at 2016-11-30T08:12:37).

|Replaceability = No free image available.

|other_information =

}}

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