Title Products Classification Last Updated Version Size          Download
2026-09 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5129237) Microsoft Server operating system-21H2 Updates 9/14/2026 n/a 560.0 MB 587185449
2026-09 Cumulative Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5129236) Windows 10 LTSB Updates 9/14/2026 n/a 829.2 MB 869452264
2026-09 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5129236) Windows 10 LTSB Updates 9/14/2026 n/a 547.8 MB 574360203
2026-09 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5129236) Windows 10 LTSB Updates 9/14/2026 n/a 896.3 MB 939850337
2026-09 Dynamic Update for Windows 10 Version 21H2 for x86-based Systems (KB5126029) Windows 10 and later Dynamic Update Critical Updates 9/8/2026 n/a 18.3 MB 19237782
2026-09 Dynamic Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5126029) Windows 10 and later Dynamic Update Critical Updates 9/8/2026 n/a 19.7 MB 20677703
2026-09 Dynamic Update for Windows 10 Version 21H2 for x64-based Systems (KB5122887) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 9/8/2026 n/a 146.0 MB 153043494
2026-09 Dynamic Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5126031) Windows 10 and later Dynamic Update Critical Updates 9/8/2026 n/a 17.3 MB 18187610
2026-09 Dynamic Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5122889) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 9/8/2026 n/a 141.5 MB 148363436
2026-09 Dynamic Update for Windows 10 Version 21H2 for x86-based Systems (KB5122887) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 9/8/2026 n/a 120.9 MB 126822100
2026-09 Dynamic Update for Windows 10 Version 21H2 for x64-based Systems (KB5126029) Windows 10 and later Dynamic Update Critical Updates 9/8/2026 n/a 21.7 MB 22726935
2026-09 Dynamic Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5122887) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 9/8/2026 n/a 187.7 MB 196788021
2026-09 Dynamic Cumulative Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5122878) Windows 10 and later GDR-DU Security Updates 9/8/2026 n/a 813.5 MB 853057601
2026-09 Dynamic Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5122878) Windows 10 and later GDR-DU Security Updates 9/8/2026 n/a 539.7 MB 565935268
2026-09 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5122878) Windows 10 and later GDR-DU Security Updates 9/8/2026 n/a 879.6 MB 922310707
2026-09 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5122882) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 562.6 MB 589944414
2026-09 Cumulative Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5122878) Windows 10 LTSB Security Updates 9/8/2026 n/a 828.6 MB 868848627
2026-09 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5122878) Windows 10 LTSB Security Updates 9/8/2026 n/a 895.9 MB 939426194
2026-09 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5122878) Windows 10 LTSB Security Updates 9/8/2026 n/a 547.3 MB 573844191
2026-08 Dynamic Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5120248) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 8/11/2026 n/a 187.2 MB 196242067
2026-08 Dynamic Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5120243) Windows 10 and later Dynamic Update Critical Updates 8/11/2026 n/a 17.3 MB 18177581
2026-08 Dynamic Update for Windows 10 Version 21H2 for x64-based Systems (KB5120248) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 8/11/2026 n/a 144.4 MB 151437390
2026-08 Dynamic Update for Windows 10 Version 21H2 for x86-based Systems (KB5120248) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 8/11/2026 n/a 122.2 MB 128146315
2026-08 Dynamic Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5120251) Windows 10 and later Dynamic Update, Windows Safe OS Dynamic Update Critical Updates 8/11/2026 n/a 149.3 MB 156586370
2026-08 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5120249) Windows 10 and later GDR-DU Security Updates 8/11/2026 n/a 878.9 MB 921624505
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