Windows build 10240.16601: December 2015 monthly security update (KB3116869)
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, version 1507
Build 10240, first released 2015-07-29
10240.16601 is the December 2015 monthly security update, released 2015-12-08 as KB3116869 (download).
115 monthly security updates behind.
The latest is 10240.21128 (2025-09 B, 2025-09-09).
Support
| All editions | No longer updated |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 144 updates for build 10240
| Build | Update | Released | KB |
|---|---|---|---|
| 10240.21128 | 2025-09 Bmonthly security update | 2025-09-09 | KB5065430 |
| 10240.21100 | 2025-08 Bmonthly security update | 2025-08-12 | KB5063889 |
| 10240.21073 | 2025-07 Bmonthly security update | 2025-07-08 | KB5062561 |
| 10240.21034 | 2025-06 Bmonthly security update | 2025-06-10 | KB5060998 |
| 10240.21014 | 2025-05 Bmonthly security update | 2025-05-13 | KB5058387 |
| 10240.20979 | 2025-04 Bmonthly security update | 2025-04-09 | KB5055547 |
| 10240.20947 | 2025-03 Bmonthly security update | 2025-03-11 | KB5053618 |
| 10240.20915 | 2025-02 Bmonthly security update | 2025-02-11 | KB5052040 |
| 10240.20890 | 2025-01 Bmonthly security update | 2025-01-14 | KB5050013 |
| 10240.20857 | 2024-12 Bmonthly security update | 2024-12-10 | KB5048703 |
| 10240.20826 | 2024-11 Bmonthly security update | 2024-11-12 | KB5046665 |
| 10240.20796 | 2024-10 Bmonthly security update | 2024-10-08 | KB5044286 |
| 10240.20766 | 2024-09 Bmonthly security update | 2024-09-10 | KB5043083 |
| 10240.20751 | 2024-08 Bmonthly security update | 2024-08-13 | KB5041782 |
| 10240.20710 | 2024-07 Bmonthly security update | 2024-07-09 | KB5040448 |
| 10240.20680 | 2024-06 Bmonthly security update | 2024-06-11 | KB5039225 |
| 10240.20651 | 2024-05 Bmonthly security update | 2024-05-14 | KB5037788 |
| 10240.20596 | 2024-04 Bmonthly security update | 2024-04-09 | KB5036925 |
| 10240.20526 | 2024-03 Bmonthly security update | 2024-03-12 | KB5035858 |
| 10240.20469 | 2024-02 Bmonthly security update | 2024-02-13 | KB5034774 |
| 10240.20402 | 2024-01 Bmonthly security update | 2024-01-09 | KB5034134 |
| 10240.20345 | 2023-12 Bmonthly security update | 2023-12-12 | KB5033379 |
| 10240.20308 | 2023-11 Bmonthly security update | 2023-11-14 | KB5032199 |
| 10240.20232 | 2023-10 Bmonthly security update | 2023-10-10 | KB5031377 |
| 10240.20162 | 2023-09 Bmonthly security update | 2023-09-12 | KB5030220 |
| 10240.20107 | 2023-08 Bmonthly security update | 2023-08-08 | KB5029259 |
| 10240.20048 | 2023-07 Bmonthly security update | 2023-07-11 | KB5028186 |
| 10240.19986 | 2023-06 OOBout-of-band update | 2023-06-23 | KB5028622 |
| 10240.19983 | 2023-06 Bmonthly security update | 2023-06-13 | KB5027230 |
| 10240.19926 | 2023-05 Bmonthly security update | 2023-05-09 | KB5026382 |
| 10240.19869 | 2023-04 Bmonthly security update | 2023-04-11 | KB5025234 |
| 10240.19805 | 2023-03 Bmonthly security update | 2023-03-14 | KB5023713 |
| 10240.19747 | 2023-02 Bmonthly security update | 2023-02-14 | KB5022858 |
| 10240.19685 | 2023-01 Bmonthly security update | 2023-01-10 | KB5022297 |
| 10240.19624 | 2022-12 Bmonthly security update | 2022-12-13 | KB5021243 |
| 10240.19567 | 2022-11 Bmonthly security update | 2022-11-08 | KB5019970 |
| 10240.19509 | 2022-10 OOBout-of-band update | 2022-10-18 | KB5020440 |
| 10240.19507 | 2022-10 Bmonthly security update | 2022-10-11 | KB5018425 |
| 10240.19444 | 2022-09 Bmonthly security update | 2022-09-13 | KB5017327 |
| 10240.19387 | 2022-08 Bmonthly security update | 2022-08-09 | KB5016639 |
| 10240.19360 | 2022-07 Bmonthly security update | 2022-07-12 | KB5015832 |
| 10240.19325 | 2022-06 Bmonthly security update | 2022-06-14 | KB5014710 |
| 10240.19297 | 2022-05 Bmonthly security update | 2022-05-10 | KB5013963 |
| 10240.19265 | 2022-04 Bmonthly security update | 2022-04-12 | KB5012653 |
| 10240.19235 | 2022-03 Bmonthly security update | 2022-03-08 | KB5011491 |
| 10240.19204 | 2022-02 Bmonthly security update | 2022-02-08 | KB5010358 |
| 10240.19179 | 2022-01 OOBout-of-band update | 2022-01-17 | KB5010789 |
| 10240.19177 | 2022-01 Bmonthly security update | 2022-01-11 | KB5009585 |
| 10240.19145 | 2021-12 Bmonthly security update | 2021-12-14 | KB5008230 |
| 10240.19119 | 2021-11 Bmonthly security update | 2021-11-09 | KB5007207 |
| 10240.19086 | 2021-10 Bmonthly security update | 2021-10-12 | KB5006675 |
| 10240.19060 | 2021-09 Bmonthly security update | 2021-09-14 | KB5005569 |
| 10240.19022 | 2021-08 Bmonthly security update | 2021-08-10 | KB5005040 |
| 10240.19003 | 2021-07 Bmonthly security update | 2021-07-13 | KB5004249 |
| 10240.18969 | 2021-07 OOBout-of-band update | 2021-07-06 | KB5004950 |
| 10240.18967 | 2021-06 Bmonthly security update | 2021-06-08 | KB5003687 |
| 10240.18932 | 2021-05 Bmonthly security update | 2021-05-11 | KB5003172 |
| 10240.18906 | 2021-04 Bmonthly security update | 2021-04-13 | KB5001340 |
| 10240.18875 | 2021-03 OOBout-of-band update | 2021-03-18 | KB5001631 |
| 10240.18874 | 2021-03 Bmonthly security update | 2021-03-09 | KB5000807 |
| 10240.18841 | 2021-02 Bmonthly security update | 2021-02-09 | KB4601331 |
| 10240.18818 | 2021-01 Bmonthly security update | 2021-01-12 | KB4598231 |
| 10240.18782 | 2020-12 Bmonthly security update | 2020-12-08 | KB4592464 |
| 10240.18756 | 2020-11 Bmonthly security update | 2020-11-10 | KB4586787 |
| 10240.18725 | 2020-10 Bmonthly security update | 2020-10-13 | KB4580327 |
| 10240.18696 | 2020-09 Bmonthly security update | 2020-09-08 | KB4577049 |
| 10240.18666 | 2020-08 Bmonthly security update | 2020-08-11 | KB4571692 |
| 10240.18638 | 2020-07 Bmonthly security update | 2020-07-14 | KB4565513 |
| 10240.18609 | 2020-06 OOBout-of-band update | 2020-06-18 | KB4567518 |
| 10240.18608 | 2020-06 Bmonthly security update | 2020-06-09 | KB4561649 |
| 10240.18575 | 2020-05 Bmonthly security update | 2020-05-12 | KB4556826 |
| 10240.18545 | 2020-04 Bmonthly security update | 2020-04-14 | KB4550930 |
| 10240.18519 | 2020-03 Bmonthly security update | 2020-03-10 | KB4540693 |
| 10240.18486 | 2020-02 Bmonthly security update | 2020-02-11 | KB4537776 |
| 10240.18453 | 2020-01 Bmonthly security update | 2020-01-14 | KB4534306 |
| 10240.18427 | 2019-12 Bmonthly security update | 2019-12-10 | KB4530681 |
| 10240.18395 | 2019-11 Bmonthly security update | 2019-11-12 | KB4525232 |
| 10240.18368 | 2019-10 Bmonthly security update | 2019-10-08 | KB4520011 |
| 10240.18335 | 2019-09 OOBout-of-band update | 2019-10-03 | KB4524153 |
| 10240.18334 | 2019-09 OOBout-of-band update | 2019-09-23 | KB4522009 |
| 10240.18333 | 2019-09 Bmonthly security update | 2019-09-10 | KB4516070 |
| 10240.18308 | 2019-08 OOBout-of-band update | 2019-08-17 | KB4517276 |
| 10240.18305 | 2019-08 Bmonthly security update | 2019-08-13 | KB4512497 |
| 10240.18275 | 2019-07 Bmonthly security update | 2019-07-09 | KB4507458 |
| 10240.18244 | 2019-06 Bmonthly security update | 2019-06-11 | KB4503291 |
| 10240.18218 | 2019-05 OOBout-of-band update | 2019-05-19 | KB4505051 |
| 10240.18215 | 2019-05 Bmonthly security update | 2019-05-14 | KB4499154 |
| 10240.18187 | 2019-04 OOBout-of-band update | 2019-04-25 | KB4498375 |
| 10240.18186 | 2019-04 Bmonthly security update | 2019-04-09 | KB4493475 |
| 10240.18158 | 2019-03 Bmonthly security update | 2019-03-12 | KB4489872 |
| 10240.18135 | 2019-02 OOBout-of-band update | 2019-02-21 | KB4491101 |
| 10240.18132 | 2019-02 Bmonthly security update | 2019-02-12 | KB4487018 |
| 10240.18094 | 2019-01 Bmonthly security update | 2019-01-08 | KB4480962 |
| 10240.18064 | 2018-12 OOBout-of-band update | 2018-12-19 | KB4483228 |
| 10240.18063 | 2018-12 Bmonthly security update | 2018-12-11 | KB4471323 |
| 10240.18036 | 2018-11 Bmonthly security update | 2018-11-13 | KB4467680 |
| 10240.18005 | 2018-10 Bmonthly security update | 2018-10-09 | KB4462922 |
| 10240.17976 | 2018-09 Bmonthly security update | 2018-09-11 | KB4457132 |
| 10240.17946 | 2018-08 Bmonthly security update | 2018-08-14 | KB4343892 |
| 10240.17918 | 2018-07 OOBout-of-band update | 2018-07-16 | KB4345455 |
| 10240.17914 | 2018-07 Bmonthly security update | 2018-07-10 | KB4338829 |
| 10240.17889 | 2018-06 Bmonthly security update | 2018-06-12 | KB4284860 |
| 10240.17861 | 2018-05 Bmonthly security update | 2018-05-08 | KB4103716 |
| 10240.17831 | 2018-04 Bmonthly security update | 2018-04-10 | KB4093111 |
| 10240.17797 | 2018-03 Bmonthly security update | 2018-03-13 | KB4088786 |
| 10240.17770 | 2018-02 Bmonthly security update | 2018-02-13 | KB4074596 |
| 10240.17741 | 2018-01 OOBout-of-band update | 2018-01-31 | KB4077735 |
| 10240.17738 | 2018-01 Bmonthly security update | 2018-01-03 | KB4056893 |
| 10240.17709 | 2017-12 Bmonthly security update | 2017-12-12 | KB4053581 |
| 10240.17673 | 2017-11 Bmonthly security update | 2017-11-14 | KB4048956 |
| 10240.17643 | 2017-10 Bmonthly security update | 2017-10-10 | KB4042895 |
| 10240.17609 | 2017-09 Bmonthly security update | 2017-09-12 | KB4038781 |
| 10240.17533 | 2017-08 Bmonthly security update | 2017-08-08 | KB4034668 |
| 10240.17488 | 2017-07 Bmonthly security update | 2017-07-11 | KB4025338 |
| 10240.17446 | 2017-06 OOBout-of-band update | 2017-06-27 | KB4032695 |
| 10240.17443 | 2017-06 Bmonthly security update | 2017-06-13 | KB4022727 |
| 10240.17394 | 2017-05 Bmonthly security update | 2017-05-09 | KB4019474 |
| 10240.17354 | 2017-04 Bmonthly security update | 2017-04-11 | KB4015221 |
| 10240.17319 | 2017-03 Bmonthly security update | 2017-03-14 | KB4012606 |
| 10240.17236 | 2017-01 Bmonthly security update | 2017-01-10 | KB3210720 |
| 10240.17202 | 2016-12 Bmonthly security update | 2016-12-13 | KB3205383 |
| 10240.17190 | 2016-11 Bmonthly security update | 2016-11-08 | KB3198585 |
| 10240.17146 | 2016-10 Bmonthly security update | 2016-10-11 | KB3192440 |
| 10240.17113 | 2016-09 Bmonthly security update | 2016-09-20 | KB3193821 |
| 10240.17071 | 2016-08 Bmonthly security update | 2016-08-09 | KB3176492 |
| 10240.17024 | 2016-07 Bmonthly security update | 2016-07-12 | KB3163912 |
| 10240.16942 | 2016-06 Bmonthly security update | 2016-06-14 | KB3163017 |
| 10240.16854 | 2016-05 Bmonthly security update | 2016-05-10 | KB3156387 |
| 10240.16771 | 2016-04 Bmonthly security update | 2016-04-12 | KB3147461 |
| 10240.16725 | 2016-03 Bmonthly security update | 2016-03-08 | KB3140745 |
| 10240.16683 | 2016-06 Doptional non-security preview | 2016-02-09 | KB3135174 |
| 10240.16644 | 2016-01 Bmonthly security update | 2016-01-12 | KB3124266 |
| 10240.16601 | 2015-12 Bmonthly security update | 2015-12-08 | KB3116869 |
| 10240.16590 | 2015-11 Bmonthly security update | 2015-11-10 | KB3105213 |
| 10240.16566 | 2015-10 Doptional non-security preview | 2015-10-27 | KB3105210 |
| 10240.16549 | 2015-10 Bmonthly security update | 2015-10-13 | KB3097617 |
| 10240.16520 | 2015-09 Doptional non-security preview | 2015-09-30 | KB3093266 |
| 10240.16487 | 2015-09 Bmonthly security update | 2015-09-08 | KB3081455 |
| 10240.16463 | 2015-08 Doptional non-security preview | 2015-08-27 | KB3081448 |
| 10240.16445 | 2015-08 Coptional preview (third week) | 2015-08-18 | KB3081444 |
| 10240.16433 | 2015-08 OOBout-of-band update | 2015-08-14 | KB3081438 |
| 10240.16430 | 2015-08 Bmonthly security update | 2015-08-11 | KB3081436 |
| 10240.16413 | 2015-08 Aa release | 2015-08-05 | KB3081424 |
| 10240.16405 | 2015-07 Doptional non-security preview | 2015-07-29 | KB3074683 |