Sxsi X64 Windows 10 Updated May 2026

Back up the C:\Windows\WinSxS\Manifests folder. If corruption occurs, compare manifests with a known-good system. Tools like sigcheck from Sysinternals can verify digital signatures.

Keeping Windows 10 updated has transformed SxS from a static store into a dynamic, patched repository. Every Quality Update or Feature Update (e.g., 22H2) often replaces specific component versions inside WinSxS. Microsoft uses a process called “component servicing” to de-duplicate files using hard links, which keeps disk space usage somewhat manageable.

However, two modern challenges have emerged:

Most SxS errors involve Microsoft Visual C++ runtimes. Download the latest combined package (all-in-one) for both x86 and x64: sxsi x64 windows 10 updated

After installation, reboot. This resolves 70% of “side-by-side configuration is incorrect” errors.

On an x64 Windows 10 system, the main SxS folder is:

C:\Windows\WinSxS

For 32-bit applications running on x64 (via WoW64), Windows also maintains: Back up the C:\Windows\WinSxS\Manifests folder

C:\Windows\SysWOW64

But the true heart of SxS is WinSxS. This folder contains multiple copies of the same library under different version-named subdirectories, such as:

On a fully updated Windows 10 x64 system, the SxS mechanism operates through manifests—XML files that explicitly state which version of which DLL an application expects. When you launch a 64-bit application, the operating system’s loader reads its manifest, consults the WinSxS catalog, and redirects the application to its specific, compatible version of the library.

Crucially, the x64 architecture introduces a clear separation: After installation, reboot

This dual-layer management ensures that a legacy 32-bit CAD program from 2010 and a modern 64-bit video editor can run simultaneously on the same updated Windows 10 machine without conflict.

Never manually delete files from WinSxS. Instead, use built-in tools:

DISM /Online /Cleanup-Image /StartComponentCleanup
DISM /Online /Cleanup-Image /StartComponentCleanup /ResetBase

The /ResetBase flag removes all superseded components, but note: after this, you cannot uninstall previous Windows updates. On an updated Windows 10, this is safe if you don't plan to roll back.

Alternatively, run Storage Sense from Settings → System → Storage → Configure Storage Sense or run it now. Enable “Delete previous versions of Windows” and “Delete temporary files.”