Microsoft has released patches for older versions like Windows XP, Vista, 7 etc.

See the complete list here : http://www.catalog.update.microsoft.com/Search.aspx?q=KB4012598 Please update your Windows now.

Filename : wannacry.exe
Size: 3.4MiB (3514368 bytes)
Type: peexe
Description : PE32 executable (GUI) Intel 80386, for MS Windows
Architecture: 32 Bit
Compiler/Packer : Microsoft visual C++ 5.0

More Details : https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/

Tags: Wannacry, XP wannacry, download patch, update wannacry