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I am looking for a official source for windows checksums (in my special case windows xp). Normally I use the "Microsoft Benefit Portal" for that, but seems like it's gone, at least I can't find it anymore using google ): Anyone knows where to find the checksums on the microsoft website? Thanks :-)

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Have you asked Microsoft about this? – John Gardeniers Jan 17 '12 at 21:12

MSDN Subscriber Downloads contains the SHA1 checksums for all of the official Microsoft ISOs. If you don't have access to MSDN, tell me exactly what version/edition of Windows XP you want and I can tell you the checksum. For example: enter image description here

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hmm benefit portal was public, that sucks ;-) but thanks for your reply - i am interested in xp sp3 vl x86 english, but the normal one, not the "n" one - thanks :-) – Jan 17 '12 at 19:19
Yeah, sorry about that, I don't know of a public place, only MSDN for subscribers. :\ But here you go: Windows XP Professional with Service Pack 3 (x86) - CD VL (English) ISO|English|Release Date: 5/2/2008 589 MB File Name: en_windows_xp_professional_with_service_pack_3_x86_cd_vl_x14-73974.iso Languages: English SHA1: 66ac289ae27724c5ae17139227cbe78c01eefe40 – Ryan Ries Jan 17 '12 at 19:34

Sorry, don't know if there a public-facing site for Microsoft checksums anymore, but the one for en_windows_xp_professional_with_service_pack_3_x86_cd_vl_x14-73974.iso is 66ac289ae27724c5ae17139227cbe78c01eefe40

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