Today's March cumulative update was released..
Cumulative update is an update file that contains all the updates up to now.
So, just install the latest cumulative update file to get the latest Windows. (You do not need to install the previous cumulative update one by one.)
It is literally a cumulative update file. So, the file size gets bigger as well.
What is a servicing stack update?
The 1709 version update has ended.
Improvements and fixes (common to all versions below)
※ Build progress
○ Developer Channel [Dev] = 21H2: Build 21337.1000 (= Preview Build)
○ Beta Channel [Beta] = 21H1: Build 19043.899 (= Preview Build)
○ Release Preview Channel [Release Preview] = 20H2 : Build 19042.870 (= Official Build) )
→ 20H1 / 20H2 / 21H1 are 100% compatible because they all use the same cumulative update.
If you already have a .899 build, you can skip the .870.
1. Automatic update (participant only / general user)
Start → Settings → Update and Recovery → Windows Update
If you don't see the automatic update, you can download the file below and update it manually.
Windows 10, what to do if the update fails
Cleaning program after Windows update
== TRICKS – Right Clik-Download With IDM ==
2. Manual update file download
Windows 10, How to manually install the cumulative update at once (2021-02-27) ※ Installation order : You can install the service stack first and then install the rest of the files in any order. If you have already installed the service stack, you only need to install the cumulative update.
1) 21H1 Version 2103 (Build 19043) & 20H2 Version 2009 (Build 19042) & 20H1 Version 2004 (Build 19041) : 2021-03-18
2021-03 Cumulative Update for Windows 10 Version 2103 (KB5001649): 1904 3 .x → 1904 3 . 870
2021-03 Windows 10 Version 200 9 Cumulative Update for (KB5001649 ): 1904 2 .x 1904 → 2 . 870
2021-03 Windows 10 Version 200 4 Cumulative Update for (KB5001649 ): 1904 1 .x 1904 → 1 . 870
=============================
20H1, 20H2, and 21H1 all use the same cumulative update.
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001649-x64_aca549448414a5ad559c742c39e9342468a23eb5.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001649-x86_781a5706e11026c9fc48013e86e38a3fc83aeef7.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001649-arm64_5281e77c8079d122aed8b41a88775abaae10abea.msu
=============================
2021-02 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 2009 and 2004 (KB4601544) : 2021-02-23
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601554-x64-ndp48_2d34ab16fa8501aa0bd9738d1b8f76024f88d421.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601554-x86-ndp48_5ba9d77edeb2b9c15cf6c4914938fe64146ff857.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601554-arm64-ndp48_23af11b83d550c30893e79e32ec069d2a15d5eea.msu
=============================
2021-02 Update to uninstall Adobe Flash Player for Windows 10 Version 2009 and 2004 ( KB4577586 ) : 2020-10-19
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x64_c9bb49df325c20ddc147137b3f769fa44d800dde.msu
[x86]
http://download.windowsupdate.com/d /msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_238da6b730a3f6a709f31980b87e2d8ecb0a8973.msu
[ARM64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-arm64_935f62c2ac5987ceda52ca0358664f5b6be381d8.msu
=============================
2) 19H2 version 1909 (build 18363 ) & 19H1 version 1903 (build 18362): 2021-03-18
Windows 10 Version 2021-03 1909 cumulative updates (KB5001648 ): 1836 3 .x 18363. → 1443
2021-03 Windows 10 Version 1903 cumulative updates (KB5001648 ): 1836 2 .x → 18362. 1443
Versions 1909 and 1903 use the same (cumulative) update.
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001648-x64_770175898c1bee1cfbcadc981fa47797c46f8b09.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001648-x86_c67d6b0b2ce0523130e81b012ec80271847f893e.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001648-arm64_8e4a2fd5461dbd487be1b024e914a698c02f9ad3.msu
=============================
2021-03 Servicing stack update for Windows 10 Version 1909 & 1903 (KB5000908 ) : 2021-03-08 ← Please install before the cumulative update
[x64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000908-x64_18dac984671ea821a83f9b4b3b6c8614054a1c21.msu
[x86]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000908-x86_25eeb04d95742fe00cbf9fac7a84fbf4a2b547e4.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/03/windows10.0-kb5000908-arm64_d16e8ba724172fa2130bdb5f1a29ceb945b35a0e.msu
=============================
2021-02 .NET Framework 3.5 and 4.8 Cumulative Update for Windows 10 Version 1909 & 1903(KB4601556) : 2021-02-16
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601556-x64-ndp48_31f95bdf3ade8c38de887e4e71e633638a1f2401.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601556-x86-ndp48_394496adae3bdf87a98bd57a97fc76eb912f9a0a.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601556-arm64-ndp48_8d3d0a6839de813af7387f0dac7362d039768774.msu
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1909 & 1903 ( KB4577586 ) : 2020-10-19
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10 /windows10.0-kb4577586-x64_ec16e118cd8b99df185402c7a0c65a31e031a6f0.msu
[x86]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_002b1ffa7fb31836aeaed74007a6949d31a96460.msu
[ARM64]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-arm64_cacff17e2776c6ade22df2533a674b0b68f13bc1.msu
=============================
3) RS5, Version 1809 (Build 17763 ) & LTSC 2019 & Server 2019 : 2021-03-18
2021-03 Cumulative update for Windows 10 Version 1809 (KB5001638 ): 17763.x → 17763. 1823
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001638-x64_64937e493ea9574759536d4b2695c05dfa5543e3.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001638-x86_9bda1241132ff712a47d9d16cf0d978eec200a53.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001638-arm64_bc569a7526353b8cc3d1f62849203e4c05ee39ee.msu
=============================
2021-02 .NET Framework 3.5, 4.7.2, and 4.8 Cumulative Update for Windows 10 Version 1809 : 2021-02-16
Dotnetfx35-472: (KB4601558)
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-x64_2abd844aa457ecf0cf668fd8c449a1bc3b4da4b4.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-x86_80433e4687219fb0930969c746db9e7e694cdcff.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-arm64_ea4523646d0b090a04ecd969c655acd49fdb6fa9.msu
=============================
Dotnetfx35-48: (KB4601555)
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601555-x64-ndp48_76b1806e30f9f891a4b410a486a272a41b988044.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601555-x86-ndp48_ec43d092aed2d1f852389e33b4713ee16627a751.msu
=============================
Dotnetfx35-472-48: ( KB4602298 )
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601555-x64-ndp48_76b1806e30f9f891a4b410a486a272a41b988044.msu
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-x64_2abd844aa457ecf0cf668fd8c449a1bc3b4da4b4.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-x86_80433e4687219fb0930969c746db9e7e694cdcff.msu
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601555-x86-ndp48_ec43d092aed2d1f852389e33b4713ee16627a751.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/02/windows10.0-kb4601558-arm64_ea4523646d0b090a04ecd969c655acd49fdb6fa9.msu
=============================
2021-03 Servicing stack update for Windows 10 Version 1809 (KB5000859 ) : 2021-03-08 ← Please install before the cumulative update
[x64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000859-x64_d3e9e3c07a849c42e2d5906fa908fb31941a1026.msu
[x86]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000859-x86_f9156ae9cf5ae5daad986cb0f984d0872cb09055.msu
[ARM64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000859-arm64_3fbad1fd58765e1e1856a4fee443adf3b2c5aa86.msu
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1809 (KB4577586 ) : 2020-10-09
[x64]
download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x64_d0f434327db9e3308b86591c248c825c03687632.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_947f151a8bb5a0b0797702e53431c52d56c02c32.msu
[ARM64]
download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-arm64_9b954e1ca43f467e324283b8be5e5a8ab929e5a4.msu
=============================
4) RS4, Version 1803 (Build 17134) : 2021-03-18
2021-03 Cumulative update for Windows 10 Version 1803 (KB5001634 ): 17134.x → 17134. 2090
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001634-x64_f067d86cf7ed5fe4ecaa76f302b508f176cef381.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001634-x86_f2f8bb21e6cce4b525720f626eeae110a0269c41.msu
[ARM64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001634-arm64_8b45b8af9034f145c172b9de646ace719ded3ae3.msu
=============================
2021-01 Cumulative updatefor.NET Framework 4.8for Windows 10 Version 1803 (KB4601054) : 2021-02-05
[x64]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601054-x64-ndp48_fbe981dae0756a18e0ff03955acbd3aaf76e2cbf.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601054-x86-ndp48_687def48e2d005e865dca6dcff4c1ba96376d399.msu
=============================
2020-10 Servicing stack update for Windows 10 Version 1803 ( KB4580398 ) : 2020-10-12 ← Please install before the cumulative update
[x64]
http://download.windowsupdate.com/d/msdownload/update/software/secu/2020/10/windows10.0-kb4580398-x64_50e837b4fcb78b364954e199b6b88c354cbed550.msu 13.2 MB
[x86]
http://download.windowsupdate.com/c/msdownload/update/software/secu/2020/10/windows10.0-kb4580398-x86_050074371e309236262a5bc68bcac43b5597b134.msu 5.9 MB
[ARM64]
http://download.windowsupdate.com/c/msdownload/update/software/secu/2020/10/windows10.0-kb4580398-arm64_c7505e567abc7131ad871367adf6007230ff91a5.msu 16.2 MB
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1803 (KB4577586): 2020-10-09
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x64_07eba1db5a2cfac83683bd43d727a3195a94b39b.msu
[x86]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_b737ffa841d2aab5cbf5e00560b93577a6d0b4d2.msu
[ARM64]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-arm64_e6c65b35f640b4541a674b77b064c1e4d066e52d.msu
=============================
5) RS3, Version 1709 (Build 16299) : 2020-10-13
Service termination
=============================
6) RS2, Version 1703 (Build 15063): 2021-03-08
2021-03 Cumulative update for Windows 10 Version 1703 (KB5000812 ): 15063. x → 15063. 2679
[x64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/03/windows10.0-kb5000812 -x64_40fa4a2bc24183c18efa21dd13056c6711a988d4.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/03/windows10.0-kb5000812-x86_e481a04e25224cc60cb1fedfa40f96d1547ab969.msu
=============================
2021-02 Cumulative updatefor.NET Framework 4.8 for Windows 10 Version 1703 (KB4601052) :2021-02-05
[x64]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601052-x64-ndp48_f21cd247824487099ce240ada724aa29e3cbf6c9.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601052-x86-ndp48_d542adda035f3c8166f3d98bd18b11cae517adf0.msu
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1703 ( KB4577586 ) : 2020-10-09
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x64_84ef2e9e7eb6bd2a3cfa5a8aef59adccab988e7d.msu
[x86]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_9a3ade6ec24a2627276cbd7df0b39ece8ffee269.msu
=============================
--------------- If you have already installed the below, you do not need to install it. -------------------------------------------------- ---------
2020-07 Servicing stack update for Windows 10 Version 1703 ( KB4565551 ) : 2020-07-13 ← Please install before the cumulative update
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/secu/2020/07/windows10.0-kb4565551-x64_a09bd8cb699781c1f52563db334ea294493e47cf.msu 11.5 MB
[x86]
http://download.windowsupdate.com/c/msdownload/update/software/secu/2020/07/windows10.0-kb4565551-x86_4f5689e10f0f653b3b1a418b304563d68774bf8d.msu 5.3 MB
=============================
7) RS1, Version 1607 (Build 14393) & 2016 LTSB & Server 2016 Version: 2021-03-09
2021-03 for Windows 10 Version 1607 cumulative update (KB5001633 ): 14393. X → 14393. 4288
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001633-x64_de4efdfb38b1229ba80d5f66689b9079a0871585.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001633-x86_5ea0594bb1cade2adc396f6d7477d9caea9a1cce.msu
=============================
2021-02 Servicing stack update for Windows 10 Version 1607 (KB4601392 ) : 2021-02-05 ← Please install before the cumulative update
[x64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/02/windows10.0-kb4601392-x64_c1fb701e0f4fcf4510a93d1bc542a822c7757629.msu
[x86]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/02/windows10.0-kb4601392-x86_1017dde1a1da74316863aa23f6b5e2dd05eb24b3.msu
=============================
2021-02 .NET Framework 4.8 Cumulative Updatefor Windows 10 Version 1607 (KB4601051) : 2021-02-05
[x64]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601051-x64-ndp48_85c646a43918fc1cc03bc9b1b04228ec3d44d01e.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/secu/2021/01/windows10.0-kb4601051-x86-ndp48_1376a62562f11e9c4dd7984e7f6a74154b3834e5.msu
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1607 ( KB4577586 ) : 2020-10-09
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x64_809b9640d04c5af4c7e78499052abaa936cb670a.msu
[x86]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_97a4f342e91e40b921727a8b944a29f7155f3ca1.msu
=============================
8) TH1, Version 1507 (Build 10240) & Windows 10 LTSB : 2021-03-18
2021-03 Windows 10 Version 1507 of the cumulative update (KB5001631 ) : 10240. X → 10240. 18 875
[x64]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001631-x64_3bbce04bb7d1041df2840a0ff5240a95cc45a8f1.msu
[x86]
download.windowsupdate.com/d/msdownload/update/software/updt/2021/03/windows10.0-kb5001631-x86_5830d2111e7eb53a46bb39d951b5579da6d83cc8.msu
=============================
2021-02 Servicing stack update for Windows 10 Version 1507 (KB4601390) : 2021-02-05 ← Install before cumulative update
[x64]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/02/windows10.0-kb4601331-x64_a75ee81dd77fffba947916d6b3b9429f3f376282.msu
[x86]
download.windowsupdate.com/c/msdownload/update/software/secu/2021/02/windows10.0-kb4601390-x86_1dd0d44e360507e6955157d63c7e5f78c445a1e0.msu
=============================
2020-10 Adobe Flash Player Uninstall Update for Windows 10 Version 1507 ( KB4577586 ) : 2020-10-09
[x64]
http://download.windowsupdate.com/c/msdownload/update/software/updt/2020/10/ windows10.0-kb4577586-x64_a0ff1622de1e30a2400d56903161a3c0757c29d1.msu
[x86]
http://download.windowsupdate.com/d/msdownload/update/software/updt/2020/10/windows10.0-kb4577586-x86_cc1837e27113e5444e025cf2dc2e2ed556ba77f9.msu
