The filesizes & checksums listed below are relevant to the ENGLISH version (not English International) of WINDOWS 10 PROFESSIONAL x64 (64-bit) only. Note that the Windows 10 MediaCreationTool creates the ISO locally (on your PC), from the components it downloads. The ISO it constructs will be a one-off construct, and its hash will be different each time that you make an ISO using the MCT, so it's not possible to check the finished ISO against any known hash. However, there are hidden official ISO downloads, no longer "officially" hosted by Microsoft, but still available for download directly from Microsoft servers, by using either the WINDOWS ISO DOWNLOADER utility from HEIDOC.NET, or via a link at TECHBENCH BY WZT. Originally, these Microsoft ISOs were on Digital River. My ISO timestamps & checksums listed below are derived from these hidden official ISOs, that I downloaded.

Version	Build	Codename	Name	ISO Size	Released to Public	Microsoft ISO Filename	ISO timestamp	ISO checksums
22H2jmm	19045.6456	22H2	Oct 2025 Update	?5.69 GB	14 Oct 2025	Win10_22H2_English_x64.iso	18 Oct 2022 15:20:48 GMT	MD5: SHA-1: SHA-256: 70F9765BC1570E52C1CFDAEA9EDF3E44 2BF7EC5E18AA146D8F6066335DCB7798AA1A4371 600CDACE2ACF41E7F2F3CF68957FDE58DBE23077DDFFA7DCE408F14D4915D14C