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  Title Products Classification Last Updated Version Size          Download
2026-01 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5078131) Windows Server 2019 Updates 1/24/2026 n/a 716.1 MB 750924144
2026-01 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5078136) Microsoft Server operating system-21H2 Updates 1/24/2026 n/a 413.6 MB 433696310
2026-01 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5077795) Windows Server 2019 Updates 1/17/2026 n/a 716.2 MB 750941165
2026-01 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5073457) Microsoft Server operating system-21H2 Security Updates 1/13/2026 n/a 413.4 MB 433479078
2025-12 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5074974) Windows Server 2016 Updates 12/18/2025 n/a 1668.7 MB 1749798216
2025-12 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5074975) Windows Server 2019 Updates 12/18/2025 n/a 710.5 MB 745062512
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
2025-11 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
2025-10 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 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 Windows Server 2019 for x64 (KB5066137) Windows Server 2019 Security Updates 10/14/2025 n/a 87.5 MB 91781751
2025-10 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 for x64 (KB5066143) Windows Server 2019 Security Updates 10/14/2025 n/a 84.1 MB 88171594
2025-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 for x64 (KB5065755) Windows Server 2019 Updates 9/9/2025 n/a 87.5 MB 91769231
2025-09 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 for x64 (KB5065749) Windows Server 2016 Updates 9/9/2025 n/a 57.4 MB 60180405
2025-09 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 for x64 (KB5065744) Windows Server 2019 Updates 9/9/2025 n/a 83.7 MB 87768602
2025-09 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 (KB5065955) Windows Server 2019 Updates 9/9/2025 n/a 171.2 MB 179537833
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
2025-08 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5066187) Windows Server 2019 Updates 8/19/2025 n/a 704.2 MB 738430308
2025-08 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5063880) Microsoft Server operating system-21H2 Security Updates 8/12/2025 n/a 402.0 MB 421493495
2025-07 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 for x64-based systems (KB5062558) Windows Server 2012 Security Updates 7/8/2025 n/a 75.2 MB 78848245
2025-07 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 for x64 (KB5062070) Windows Server 2019 Updates 7/8/2025 n/a 84.4 MB 88459706
2025-07 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 for x64 (KB5062064) Windows Server 2016 Updates 7/8/2025 n/a 60.4 MB 63322446
2025-07 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 (KB5062152) Windows Server 2019 Updates 7/8/2025 n/a 172.8 MB 181193021
2025-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 for x64 (KB5062068) Windows Server 2019 Updates 7/8/2025 n/a 88.4 MB 92733315
2025-07 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5062572) Microsoft Server operating system-21H2 Security Updates 7/8/2025 n/a 399.5 MB 418934396
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