If you are still on the base version of Windows 8, you must upgrade to 8.1 to access the final set of patches released before 2023. Windows 8.1 - Microsoft Update Catalog
To download the Windows 8 update for 64-bit systems, users should ideally update to Windows 8.1, as the original Windows 8 reached its end of support on January 12, 2016. Windows 8.1 also reached its end of support on January 10, 2023, meaning it no longer receives security or feature updates from Microsoft. How to Download Windows 8 Updates (64-bit) windows 8 update download 64-bit
Microsoft still hosts major update packages like the Windows 8.1 Update for x64-based Systems (KB2919355) . This cumulative set of updates is essential for some systems to continue functioning correctly. If you are still on the base version
Older updates designed to improve the initial Windows 8 experience, such as KB2756872 , can also be found at the Microsoft Download Center . Upgrading from Windows 8 to 8.1 How to Download Windows 8 Updates (64-bit) Microsoft
While automatic updates are no longer being issued, you can still manually download specific update packages for x64-based systems from official Microsoft sources:
This is the primary repository for manual downloads. You can search for specific Knowledge Base (KB) numbers to find the correct MSU (Microsoft Update) file for your architecture. For example, the January 2023 Security Monthly Quality Rollup for Windows 8.1 for x64 (KB5022352) is available on the Microsoft Update Catalog .