Is there an official source for Windows ISO (XP+) checksums, online?
Wanting to download some older Windows versions, for support purposes, but they don't appear to be available on Microsoft's website, so I am having to find 3rd party copies.
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An MSDN subscription is not needed to browse the contents on the Subscriber Downloads page.
Once there, you can browse to any product and click on the
Details link to see the SHA1 hash for the product
Windows XP Service Pack 3 (x86) - CD (English)
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Service Pack 2 and Service Pack 3 are available from Microsoft here: http://catalog.update.microsoft.com/v7/ You must use Internet Explorer 6 or later. Search for "XP Service Pack" (without quotes)
Direct link to above search:
And the Win XP service pack 3 sha1 there is c81472f7eeea2eca421e116cd4c03e2300ebfde4 - also tested with the file.
There is third-party service to acquire MS Windows ISO checksums: