is there some official link to download the updated feb isos? like techbench or the microsoft win 10 download tool?
No (not yet). But for MSDN (it's the same for VLSC) iso's the sha1 checksums can be verified at the MSDN website, so it's not needed to download from ms directly.
apologized..Your missing this one from your mega download???? B57921DDF4672C101F312AA66DD481350035D7E9 *en_windows_10_multiple_editions_version_1511_updated_feb_2016_x64_dvd_8379634.iso
The ru.cloud links also work perfectly and won't ever be deleted due to a dmca takedown Torrents not seeded by a seedbox will expire because not many people will keep on seeding after completion anymore.
It's not on VLSC yet. My options (in Pro English 64 bit) are: Windows 10 Professional (Released Jul '15) 64 Bit English Windows 10 Professional, Version 1511 (Released Nov '15) 64 Bit English