Check your Windows ISO image

All SHA1 signatures for Windows 10 installation DVDs

Currently selected ISO images : Windows 10 (v21H1) versions in english

Introduction

Installation DVD for the Windows 10 operating system are available as an ISO image file from various sources on the web. This ISO file must be burned on a writable DVD that can be then used to install Windows 10 on a computer. Before doing this, it is important that you check the integrity of the ISO file and that it has not been tampered with.

If an ISO image file has been tampered with, this can mean that some trojan or virus has been added to the image. Beware that some online shops are selling very cheap Windows licenses and installation ISO files. The reason behind this very low price could be that they want you to install an infected version of Windows, to later take control of your computer.

So the goal of this web page is to give you the procedure to check the integrity of the ISO file, so you can then be sure that your Windows installation is safe.

Disclaimer

This site doesn't contain any illegal content.
It doesn't contain any Windows 10 ISO file, nor any link to Windows 10 ISO files.
It contains only a compilation of SHA1 signatures, which is an information that is publically available on various Microsoft's websites.

What is a SHA1 signature or hash?

SHA1 is a cryptographic algorithm that is applied to all the bytes of a file. The output of that algorith is a 40-byte signature also called a hash or checksum. Altering the file content, even a single bit, will results in a totally different signature. So if the computed signature of the ISO image in your hands matches the one published by Microsoft and listed below, you can be 100% sure that every bit of your file is identical to what Microsoft has published and that no one has tampered with the image.

How to check a SHA1 signature?

Several free tools are available to compute SHA1 signatures. Their usage is very simple and similar from one tool to the other. Basically after launching the tool, you browse for the Windows 10 ISO image file from a file dialog and then the tool computes automatically the SHA1 signature. This will take some time as the ISO images are quite big and the SHA1 algorithm is quite complex.

One of the easiest tool to use for the casual user is the "MD5 & SHA1 Checksum Utility" from Raymond Lin. It is a free, lightweight and "portable" tool, i.e. it doesn't need to be installed. Just download the .exe file from Softpedia here and launch it. An easy user interface opens, browse for your ISO file and wait for the SHA1 signature to be displayed.

If you prefer to use a command line tool, you can download one directly from Microsoft here. To compute the SHA1 signature for your ISO image file, in a command console type : fciv.exe -sha1 <filename of the ISO>.

SHA1 signatures for the official MSDN Windows 10 (v21H1) installation ISO images

You will find below the original name of each ISO file as well as the corresponding SHA1 signature. The exact name of your image can be different depending of the distribution channel, this is not critical as long as the SHA1 matches one listed.

You can also reduce the length of the list by clicking on the "filters" button. This can also be used to select other ISO images not currently displayed (other languages or other special distributions such as "VL", N" or "KN", etc).

Currently displaying Windows 10 (v21H1) versions in english.

Windows 10 (business editions), version 21H1 (x64) - DVD (English)
en_windows_10_business_editions_version_21h1_x64_dvd_ec5a76c1.iso
SHA1: BDE4DBA4B702A17880F5E17935B3CAA212FD2C0AEnglish
Windows 10 (business editions), version 21H1 (x86) - DVD (English)
en_windows_10_business_editions_version_21h1_x86_dvd_1495793c.iso
SHA1: 6650029D84DCBBEACE6AF42F410D3EEB7409A3E9English
Windows 10 (business editions), version 21H1 (updated Jun 2021) (x64) - DVD (English)
en_windows_10_business_editions_version_21h1_updated_jun_2021_x64_dvd_8222df3d.iso
SHA1: 293CDA5F19B7790E108B41EDF67E56A600AEC636English
Windows 10 (business editions), version 21H1 (updated Jun 2021) (x86) - DVD (English)
en_windows_10_business_editions_version_21h1_updated_jun_2021_x86_dvd_82e10525.iso
SHA1: A2ED1B750F097E73F93A0ED4E87D24E1543638FFEnglish
Windows 10 (business editions), version 21H1 (updated Jul 2021) (x64) - DVD (English)
en_windows_10_business_editions_version_21h1_updated_jul_2021_x64_dvd_ac09d03e.iso
SHA1: 7E23915A8B1E55C0044DA91478511CF38F507981English
Windows 10 (business editions), version 21H1 (updated Jul 2021) (x86) - DVD (English)
en_windows_10_business_editions_version_21h1_updated_jul_2021_x86_dvd_244c1f68.iso
SHA1: 4DCEFE6C2C270167F0A142C9820C85D68B8C51E0English
Windows 10 (consumer editions), version 21H1 (x64) - DVD (English)
en_windows_10_consumer_editions_version_21h1_x64_dvd_540c0dd4.iso
SHA1: 78AA5FA0FD332EE0822EF5A533CD2CFE12333274English
Windows 10 (consumer editions), version 21H1 (x86) - DVD (English)
en_windows_10_consumer_editions_version_21h1_x86_dvd_68cee121.iso
SHA1: 13F5057EB527DC561E473B80D538CB4CD4E69FB7English
Windows 10 (consumer editions), version 21H1 (updated Jun 2021) (x64) - DVD (English)
en_windows_10_consumer_editions_version_21h1_updated_jun_2021_x64_dvd_a6b56a79.iso
SHA1: F0F9327CC0965C42E46EA2EC3BDEF4F9F75C1F54English
Windows 10 (consumer editions), version 21H1 (updated Jun 2021) (x86) - DVD (English)
en_windows_10_consumer_editions_version_21h1_updated_jun_2021_x86_dvd_f4f19e03.iso
SHA1: ECF080BCEBF557B3509EAF9126D2384E06DBC06BEnglish
Windows 10 (consumer editions), version 21H1 (updated Jul 2021) (x64) - DVD (English)
en_windows_10_consumer_editions_version_21h1_updated_jul_2021_x64_dvd_13fe1567.iso
SHA1: 17F0D52BCEA53AE679360BE5DD7180068E74AC86English
Windows 10 (consumer editions), version 21H1 (updated Jul 2021) (x86) - DVD (English)
en_windows_10_consumer_editions_version_21h1_updated_jul_2021_x86_dvd_872cc4e6.iso
SHA1: CCE87CEBF5D564A1EB2A069BBE0D17CA72605087English
Windows 10 (business editions), version 21H1 (x64) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_x64_dvd_d7ff251e.iso
SHA1: F60CED87DA42C74DD3E81A4A79B1EAD453706E0BEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (x86) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_x86_dvd_75e3f9aa.iso
SHA1: 3D8450C08A97B5F7ED9C23CB46E90C74DC026F1FEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Jun 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_jun_2021_x64_dvd_751b0bd0.iso
SHA1: 8686994F23C6555B599531217B7B20FC5D964BB3English-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Jun 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_jun_2021_x86_dvd_459e80ce.iso
SHA1: 29DD6D4CAD0147DDF40671B9DD4110267452862DEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Jul 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_jul_2021_x64_dvd_7dbb0a6e.iso
SHA1: 4CF5CEFEFDAF69BCE8A36CE7016EEF8C446F79FAEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Jul 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_jul_2021_x86_dvd_e85145e8.iso
SHA1: 19B0ECCDF26BAAC104B1BCAC0DAE13D7713A41C8English-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Aug 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_aug_2021_x64_dvd_694d89d9.iso
SHA1: CFECB63A57745187480A259D32D411E95962C3AAEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Aug 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_aug_2021_x86_dvd_a5c76536.iso
SHA1: 74F829396CE211C01F3DC29FF12FEDE19EE3BE0BEnglish-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated September 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_sep_2021_x64_dvd_d9a6d2c4.iso
SHA1: 78682C6DEE5BEB77E933D1E6F41F2C1A7F6AF4A1English-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated September 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_business_editions_version_21h1_updated_sep_2021_x86_dvd_eafd65d9.iso
SHA1: 4D4D1B28FE1EFD19A8668AAE5A6AFA69371A85B0English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (x64) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_x64_dvd_a656f7a8.iso
SHA1: 58BA8A272094F6B18616DDA494D2348DA2986C59English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (x86) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_x86_dvd_edfd64ef.iso
SHA1: 14EBF83C28E16E6F86AC0D64568328E1D47C32C9English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Jun 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_jun_2021_x64_dvd_9884c59b.iso
SHA1: FDBD5A4BAEBE523408DB0728DB6F7A5E04C1B418English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Jun 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_jun_2021_x86_dvd_d5de22e8.iso
SHA1: 21AC039758D13D0F5FF12EDF3E5B4431A7EF1603English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Jul 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_jul_2021_x64_dvd_d53365bb.iso
SHA1: BFC662C37BFFBE28870413DDF12F44F8DE1B791CEnglish-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Jul 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_jul_2021_x86_dvd_209de5e6.iso
SHA1: 5FFDD1592AC1008CF6C0F7C4D019C5789F92EF54English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Aug 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_aug_2021_x64_dvd_c4331272.iso
SHA1: 91DED27BF71E5B9DEDF07CCFECF9CADB9290DE6FEnglish-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated Aug 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_aug_2021_x86_dvd_5632524d.iso
SHA1: 3BEC13AECADACE49BB4B53A316650B4449F256FFEnglish-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated September 2021) (x64) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_sep_2021_x64_dvd_1d647f91.iso
SHA1: F00807C20D7543EBD81A78B23EFE5F56988B7719English-UnitedKingdom
Windows 10 (consumer editions), version 21H1 (updated September 2021) (x86) - DVD (English-United Kingdom)
en-gb_windows_10_consumer_editions_version_21h1_updated_sep_2021_x86_dvd_1ee0a6a8.iso
SHA1: B890C7C9E6E1FA076FCE4AD05EF128D1F931E730English-UnitedKingdom
Windows 10 (business editions), version 21H1 (updated Aug 2021) (x64) - DVD (English)
en-us_windows_10_business_editions_version_21h1_updated_aug_2021_x64_dvd_43d18505.iso
SHA1: 8E7AD74CD178D5F6EE6CC07B718C69B1F48F561EEnglish
Windows 10 (business editions), version 21H1 (updated Aug 2021) (x86) - DVD (English)
en-us_windows_10_business_editions_version_21h1_updated_aug_2021_x86_dvd_4bdeb78e.iso
SHA1: 4837CF5B750222C3486FB61C35A821F4AEF775F0English
Windows 10 (business editions), version 21H1 (updated September 2021) (x64) - DVD (English)
en-us_windows_10_business_editions_version_21h1_updated_sep_2021_x64_dvd_56628c48.iso
SHA1: CB7EF1A0723A0AE97D5E0261ADACE29C266618DFEnglish
Windows 10 (business editions), version 21H1 (updated Sep 2021) (x86) - DVD (English)
en-us_windows_10_business_editions_version_21h1_updated_sep_2021_x86_dvd_8513fd7d.iso
SHA1: D6B4986D42BE64134B7690830A91979394769AC8English
Windows 10 (consumer editions), version 21H1 (updated Aug 2021) (x64) - DVD (English)
en-us_windows_10_consumer_editions_version_21h1_updated_aug_2021_x64_dvd_00b6a9c2.iso
SHA1: 8C92447D1C6A99FD41B3B147D982947A09FA93B7English
Windows 10 (consumer editions), version 21H1 (updated Aug 2021) (x86) - DVD (English)
en-us_windows_10_consumer_editions_version_21h1_updated_aug_2021_x86_dvd_91ae99df.iso
SHA1: 6AAC2A776BF18A4A1D5B08A3F827DF5B8962AB51English
Windows 10 (consumer editions), version 21H1 (updated September 2021) (x64) - DVD (English)
en-us_windows_10_consumer_editions_version_21h1_updated_sep_2021_x64_dvd_9a13e3f5.iso
SHA1: C07A3B7BA015E0271AC18E044B8D210F65CE6638English
Windows 10 (consumer editions), version 21H1 (updated September 2021) (x86) - DVD (English)
en-us_windows_10_consumer_editions_version_21h1_updated_sep_2021_x86_dvd_6be14d59.iso
SHA1: 32D9199A3F35B6F3D1C835B8CFD896B4BB2B4FADEnglish

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