Windows build 19044.6812: January 2026 out-of-band update (KB5078129)
Windows Build Decoder: What a Windows build number means: 10.0.26100.2314 is Windows 11 24H2 with the November 2024 update. Version, KB, support dates, updates behind.
Paste a Windows build number from winver, ver, a system inventory or a vulnerability scan:
10.0.26100.2314, 19045.5487, Microsoft Windows [Version 10.0.22631.4460], a KB number
or a version like 22H2. You get the Windows version (the same build is often a client and a server release),
the cumulative update it has, how many monthly security updates behind it is, and how long that version gets updates.
Versions, updates and dates come from Microsoft's release information for
Windows 11,
Windows 10 and
Windows Server, read 2026-10-28.
Try: 10.0.26100.2314, 19045.5487, 22631.4460, 20348, 17763, KB5046617, 22H2
Windows 10 Enterprise LTSC 2021 (version 21H2) / Windows 10, version 21H2
Build 19044, first released 2021-11-16
19044.6812 is the January 2026 out-of-band update, released 2026-01-24 as KB5078129 (download).
9 monthly security updates behind.
The latest is 19044.7811 (2026-10 OOB, 2026-10-26).
Support
| Windows 10 Enterprise LTSC 2021 (version 21H2): Mainstream support | Updated |
|---|---|
| Windows 10 Enterprise LTSC 2021 (version 21H2): Extended support | Updated |
| Windows 10, version 21H2: All editions | No longer updated |
Windows 10 reached end of support on 2025-10-14. Devices enrolled in Extended Security Updates (ESU) still get security updates.
All 88 updates for build 19044
| Build | Update | Released | KB |
|---|---|---|---|
| 19044.7811 | 2026-10 OOBout-of-band update | 2026-10-26 | KB5134125 |
| 19044.7807 | 2026-10 Bmonthly security update | 2026-10-13 | KB5126657 |
| 19044.7727 | 2026-09 OOBout-of-band update | 2026-09-14 | KB5129236 |
| 19044.7725 | 2026-09 Bmonthly security update | 2026-09-08 | KB5122878 |
| 19044.7663 | 2026-08 Bmonthly security update | 2026-08-11 | KB5120249 |
| 19044.7548 | 2026-07 Bmonthly security update | 2026-07-14 | KB5099539 |
| 19044.7417 | 2026-06 Bmonthly security update | 2026-06-09 | KB5094127 |
| 19044.7291 | 2026-05 Bmonthly security update | 2026-05-12 | KB5087544 |
| 19044.7184 | 2026-04 Bmonthly security update | 2026-04-14 | KB5082200 |
| 19044.7058 | 2026-03 Bmonthly security update | 2026-03-10 | KB5078885 |
| 19044.6937 | 2026-02 Bmonthly security update | 2026-02-10 | KB5075912 |
| 19044.6812 | 2026-01 OOBout-of-band update | 2026-01-24 | KB5078129 |
| 19044.6811 | 2026-01 OOBout-of-band update | 2026-01-17 | KB5077796 |
| 19044.6809 | 2026-01 Bmonthly security update | 2026-01-13 | KB5073724 |
| 19044.6693 | 2025-12 OOBout-of-band update | 2025-12-18 | KB5074976 |
| 19044.6691 | 2025-12 Bmonthly security update | 2025-12-09 | KB5071546 |
| 19044.6575 | 2025-11 Bmonthly security update | 2025-11-11 | KB5068781 |
| 19044.6456 | 2025-10 Bmonthly security update | 2025-10-14 | KB5066791 |
| 19044.6332 | 2025-09 Bmonthly security update | 2025-09-09 | KB5065429 |
| 19044.6218 | 2025-08 OOBout-of-band update | 2025-08-19 | KB5066188 |
| 19044.6216 | 2025-08 Bmonthly security update | 2025-08-12 | KB5063709 |
| 19044.6093 | 2025-07 Bmonthly security update | 2025-07-08 | KB5062554 |
| 19044.5965 | 2025-06 Bmonthly security update | 2025-06-10 | KB5060533 |
| 19044.5859 | 2025-05 OOBout-of-band update | 2025-05-27 | KB5061979 |
| 19044.5856 | 2025-05 OOBout-of-band update | 2025-05-19 | KB5061768 |
| 19044.5854 | 2025-05 Bmonthly security update | 2025-05-13 | KB5058379 |
| 19044.5737 | 2025-04 Bmonthly security update | 2025-04-08 | KB5055518 |
| 19044.5608 | 2025-03 Bmonthly security update | 2025-03-11 | KB5053606 |
| 19044.5487 | 2025-02 Bmonthly security update | 2025-02-11 | KB5051974 |
| 19044.5371 | 2025-01 Bmonthly security update | 2025-01-14 | KB5049981 |
| 19044.5247 | 2024-12 Bmonthly security update | 2024-12-10 | KB5048652 |
| 19044.5131 | 2024-11 Bmonthly security update | 2024-11-12 | KB5046613 |
| 19044.5011 | 2024-10 Bmonthly security update | 2024-10-08 | KB5044273 |
| 19044.4894 | 2024-09 Bmonthly security update | 2024-09-10 | KB5043064 |
| 19044.4780 | 2024-08 Bmonthly security update | 2024-08-13 | KB5041580 |
| 19044.4651 | 2024-07 Bmonthly security update | 2024-07-09 | KB5040427 |
| 19044.4529 | 2024-06 Bmonthly security update | 2024-06-11 | KB5039211 |
| 19044.4412 | 2024-05 Bmonthly security update | 2024-05-14 | KB5037768 |
| 19044.4291 | 2024-04 Bmonthly security update | 2024-04-09 | KB5036892 |
| 19044.4170 | 2024-03 Bmonthly security update | 2024-03-12 | KB5035845 |
| 19044.4046 | 2024-02 Bmonthly security update | 2024-02-13 | KB5034763 |
| 19044.3930 | 2024-01 Bmonthly security update | 2024-01-09 | KB5034122 |
| 19044.3803 | 2023-12 Bmonthly security update | 2023-12-12 | KB5033372 |
| 19044.3693 | 2023-11 Bmonthly security update | 2023-11-14 | KB5032189 |
| 19044.3570 | 2023-10 Bmonthly security update | 2023-10-10 | KB5031356 |
| 19044.3448 | 2023-09 Bmonthly security update | 2023-09-12 | KB5030211 |
| 19044.3324 | 2023-08 Bmonthly security update | 2023-08-08 | KB5029244 |
| 19044.3208 | 2023-07 Bmonthly security update | 2023-07-11 | KB5028166 |
| 19044.3086 | 2023-06 Bmonthly security update | 2023-06-13 | KB5027215 |
| 19044.2965 | 2023-05 Bmonthly security update | 2023-05-09 | KB5026361 |
| 19044.2846 | 2023-04 Bmonthly security update | 2023-04-11 | KB5025221 |
| 19044.2788 | 2023-03 Coptional preview (third week) | 2023-03-21 | KB5023773 |
| 19044.2728 | 2023-03 Bmonthly security update | 2023-03-14 | KB5023696 |
| 19044.2673 | 2023-02 Coptional preview (third week) | 2023-02-21 | KB5022906 |
| 19044.2604 | 2023-02 Bmonthly security update | 2023-02-14 | KB5022834 |
| 19044.2546 | 2023-01 Coptional preview (third week) | 2023-01-19 | KB5019275 |
| 19044.2486 | 2023-01 Bmonthly security update | 2023-01-10 | KB5022282 |
| 19044.2364 | 2022-12 Bmonthly security update | 2022-12-13 | KB5021233 |
| 19044.2311 | 2022-11 Coptional preview (third week) | 2022-11-15 | KB5020030 |
| 19044.2251 | 2022-11 Bmonthly security update | 2022-11-08 | KB5019959 |
| 19044.2194 | 2022-10 OOBout-of-band update | 2022-10-28 | KB5020953 |
| 19044.2193 | 2022-10 Coptional preview (third week) | 2022-10-25 | KB5018482 |
| 19044.2132 | 2022-10 OOBout-of-band update | 2022-10-17 | KB5020435 |
| 19044.2130 | 2022-10 Bmonthly security update | 2022-10-11 | KB5018410 |
| 19044.2075 | 2022-09 Coptional preview (third week) | 2022-09-20 | KB5017380 |
| 19044.2006 | 2022-09 Bmonthly security update | 2022-09-13 | KB5017308 |
| 19044.1949 | 2022-08 Coptional preview (third week) | 2022-08-26 | KB5016688 |
| 19044.1889 | 2022-08 Bmonthly security update | 2022-08-09 | KB5016616 |
| 19044.1865 | 2022-07 Coptional preview (third week) | 2022-07-26 | KB5015878 |
| 19044.1826 | 2022-07 Bmonthly security update | 2022-07-12 | KB5015807 |
| 19044.1806 | 2022-06 Coptional preview (third week) | 2022-06-28 | KB5014666 |
| 19044.1767 | 2022-06 OOBout-of-band update | 2022-06-20 | KB5016139 |
| 19044.1766 | 2022-06 Bmonthly security update | 2022-06-14 | KB5014699 |
| 19044.1741 | 2022-05 Coptional preview (third week) | 2022-06-02 | KB5014023 |
| 19044.1708 | 2022-05 OOBout-of-band update | 2022-05-19 | KB5015020 |
| 19044.1706 | 2022-05 Bmonthly security update | 2022-05-10 | KB5013942 |
| 19044.1682 | 2022-04 Coptional preview (third week) | 2022-04-25 | KB5011831 |
| 19044.1645 | 2022-04 Bmonthly security update | 2022-04-12 | KB5012599 |
| 19044.1620 | 2022-03 Coptional preview (third week) | 2022-03-22 | KB5011543 |
| 19044.1586 | 2022-03 Bmonthly security update | 2022-03-08 | KB5011487 |
| 19044.1566 | 2022-02 Coptional preview (third week) | 2022-02-15 | KB5010415 |
| 19044.1526 | 2022-02 Bmonthly security update | 2022-02-08 | KB5010342 |
| 19044.1503 | 2022-01 Coptional preview (third week) | 2022-01-25 | KB5009596 |
| 19044.1469 | 2022-01 OOBout-of-band update | 2022-01-17 | KB5010793 |
| 19044.1466 | 2022-01 Bmonthly security update | 2022-01-11 | KB5009543 |
| 19044.1415 | 2021-12 Bmonthly security update | 2021-12-14 | KB5008212 |
| 19044.1387 | 2021-11 Coptional preview (third week) | 2021-11-22 | KB5007253 |
| 19044.1288 | 2021-11 Coptional preview (third week) | 2021-11-16 |