Title Products Classification Last Updated Version Size          Download
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 .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5126149) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 152.5 MB 159920972
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5126422) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 76.2 MB 79944499
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5126050) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 76.3 MB 79976473
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 .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5126421) Windows 10 LTSB Security Updates 9/8/2026 n/a 77.5 MB 81247370
2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5126145) Windows 10 LTSB Security Updates 9/8/2026 n/a 155.5 MB 163090294
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5126046) Windows 10 LTSB Security Updates 9/8/2026 n/a 78.1 MB 81842924
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
2026-08 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
2026-08 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5121650) Microsoft Server operating system-21H2 Security Updates 8/11/2026 n/a 152.5 MB 159932505
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5120705) Microsoft Server operating system-21H2 Security Updates 8/11/2026 n/a 76.3 MB 79979694
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5120714) Microsoft Server operating system-21H2 Security Updates 8/11/2026 n/a 76.2 MB 79952811
2026-08 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5120242) Microsoft Server operating system-21H2 Security Updates 8/11/2026 n/a 580.1 MB 608290854
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5120709) Windows 10 LTSB Security Updates 8/11/2026 n/a 77.5 MB 81263013
2026-08 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5121646) Windows 10 LTSB Security Updates 8/11/2026 n/a 155.5 MB 163094655
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5120701) Windows 10 LTSB Security Updates 8/11/2026 n/a 78.0 MB 81831642
2026-08 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5120249) Windows 10 LTSB Security Updates 8/11/2026 n/a 895.2 MB 938722696
2026-07 Dynamic Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5099539) Windows 10 and later GDR-DU Security Updates 7/14/2026 n/a 1067.1 MB 1118925072
2026-07 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5101005) Microsoft Server operating system-21H2 Security Updates 7/14/2026 n/a 76.2 MB 79891518
2026-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5101010) Microsoft Server operating system-21H2 Security Updates 7/14/2026 n/a 76.4 MB 80080102
2026-07 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5102206) Microsoft Server operating system-21H2 Security Updates 7/14/2026 n/a 152.6 MB 159971620
2026-07 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5099540) Microsoft Server operating system-21H2 Security Updates 7/14/2026 n/a 573.2 MB 601026757
2026-07 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5102202) Windows 10 LTSB Security Updates 7/14/2026 n/a 155.6 MB 163201468
2026-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5101006) Windows 10 LTSB Security Updates 7/14/2026 n/a 78.2 MB 81986149
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