Title Products Classification Last Updated Version Size          Download
2025-12 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5071546) Windows 10 and later GDR-DU Security Updates 12/9/2025 n/a 1011.4 MB 1060545811
2025-12 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5071547) Microsoft Server operating system-21H2 Security Updates 12/9/2025 n/a 412.1 MB 432136027
2025-12 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5071546) Windows 10 LTSB Security Updates 12/9/2025 n/a 1027.7 MB 1077651265
2025-11 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5068781) Windows 10 and later GDR-DU Security Updates 11/11/2025 n/a 760.1 MB 796970486
2025-11 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5068787) Microsoft Server operating system-21H2 Security Updates 11/11/2025 n/a 412.8 MB 432872715
2025-11 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5068781) Windows 10 LTSB Security Updates 11/11/2025 n/a 776.2 MB 813955638
2025-10 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5070884) Microsoft Server operating system-21H2 Security Updates 10/23/2025 n/a 410.0 MB 429927901
2025-10 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5066791) Windows 10 and later GDR-DU Security Updates 10/14/2025 n/a 713.5 MB 748164657
2025-10 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5066782) Microsoft Server operating system-21H2 Security Updates 10/14/2025 n/a 408.3 MB 428141844
2025-10 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5066139) Microsoft Server operating system-21H2 Security Updates 10/14/2025 n/a 72.6 MB 76133287
2025-10 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5066791) Windows 10 LTSB Security Updates 10/14/2025 n/a 729.7 MB 765104062
2025-10 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5066743) Microsoft Server operating system-21H2 Security Updates 10/14/2025 n/a 145.0 MB 152003191
2025-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5066134) Microsoft Server operating system-21H2 Security Updates 10/14/2025 n/a 72.4 MB 75869904
2025-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5066130) Windows 10 LTSB Security Updates 10/14/2025 n/a 75.7 MB 79401999
2025-10 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5066746) Windows 10 LTSB Security Updates 10/14/2025 n/a 151.9 MB 159295662
2025-10 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5066135) Windows 10 LTSB Security Updates 10/14/2025 n/a 76.2 MB 79893663
2025-09 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5065429) Windows 10 and later GDR-DU Security Updates 9/9/2025 n/a 706.9 MB 741186736
2025-09 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5065432) Microsoft Server operating system-21H2 Security Updates 9/9/2025 n/a 402.8 MB 422411416
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5064400) Windows 10 LTSB Updates 9/9/2025 n/a 75.7 MB 79394182
2025-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5065956) Windows 10 LTSB Updates 9/9/2025 n/a 151.9 MB 159286928
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5064399) Windows 10 LTSB Updates 9/9/2025 n/a 76.2 MB 79892746
2025-09 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5065429) Windows 10 LTSB Security Updates 9/9/2025 n/a 723.0 MB 758134810
2025-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5065962) Microsoft Server operating system-21H2 Updates 9/9/2025 n/a 145.0 MB 152008130
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5065753) Microsoft Server operating system-21H2 Updates 9/9/2025 n/a 72.4 MB 75869518
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5065748) Microsoft Server operating system-21H2 Updates 9/9/2025 n/a 72.6 MB 76138612
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