Update Windows 7 KB4490628

Windows 7 Servicing Stack Update KB4490628

KB4490628 is a Servicing Stack Update (SSU) for Windows 7 Service Pack 1 and Windows Server 2008 R2 SP1.

The servicing stack is the Windows component responsible for installing and maintaining Windows updates. Updating it helps ensure that later Windows updates can be installed correctly.

Why is KB4490628 important?

KB4490628 became an important prerequisite during Microsoft's transition from SHA-1 to SHA-2 signed updates for Windows 7.

For systems that are being restored, reinstalled or updated from older media, Microsoft identifies KB4490628 together with the SHA-2 support update KB4474419 as required components before installing certain later Windows 7 updates.

KB4490628 and KB4474419

KB4490628 updates the Windows servicing stack, while KB4474419 adds SHA-2 code-signing support.

These two updates address different components, but both are commonly required when preparing an older Windows 7 SP1 installation to install later Microsoft updates.

If you are restoring or updating Windows 7, you should also review the Windows 7 KB4474419 SHA-2 support update.

Which version should I download?

Download the x86 package for Windows 7 32-bit.

Download the x64 package for Windows 7 64-bit.

You can check your system architecture from:

Control Panel → System and Security → System → System type

About these archived files

YouWindowsWorld preserves the original Microsoft Update Standalone Package (.msu) files for KB4490628.

The SHA-1 and SHA-256 checksums have been calculated directly from the files stored on the YouWindowsWorld server and match the documented checksums for the original Microsoft packages.

Important

Windows 7 reached end of support on January 14, 2020. These packages are primarily useful for maintaining, restoring or updating existing legacy Windows 7 installations.