How to Safely Reduce WinSxS Folder Size in Windows 11

How to Check the Current Size of the WinSxS Folder

The WinSxS folder size check is a good first step before trying to reduce it. Seeing how much space the WinSxS folder is taking up is done by running a simple command in Windows that analyzes the component store. This report shows the WinSxS folder's actual size and if any cleanup is recommended.

Dism.exe /online /Cleanup-Image /StartComponentCleanup

This command analyzes the component store and tells you if cleanup is recommended. What you’ll see: A report will appear, comparing the folder’s actual size with the space it occupies on your disk.

Methods to Reduce WinSxS Folder Size

The WinSxS folder in Windows 11 uses a significant amount of disk space. You can manage the WinSxS folder size using effective methods to reduce its footprint.

Using Storage Sense and Disk Cleanup

Windows 11 includes built-in tools to reclaim disk space. You can find Storage Sense in Settings under System > Storage. It automatically removes temporary files and old Windows update files. Alternatively, the classic Disk Cleanup tool allows you to select ‘Windows Update Cleanup’ to remove superseded files.

Advanced DISM Cleanup (Admin Required)

You can significantly reduce the WinSxS folder size using an advanced DISM (Deployment Image Servicing and Management) cleanup tool that safely removes old versions of Windows components. To use this powerful feature, you’ll need to run it with administrator permissions. This tool helps free up disk space by getting rid of unneeded files, making your system run more efficiently.

To perform a standard cleanup, run:

Dism.exe /online /Cleanup-Image /StartComponentCleanup

To remove all older versions of components, use the following command:

Dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase

What you’ll see: Windows removes obsolete files that are no longer needed for system recovery, significantly reducing the folder size.

Automating Cleanup with Task Scheduler

Automating the process to reduce the WinSxS folder size is possible using Windows’ built-in Task Scheduler. This lets you run the cleanup task automatically without needing to remember to do it manually. You can find the specific task within the Task Scheduler Library and then simply right-click it to run the cleanup when needed.

1. ⊞ Click Start and search for Task Scheduler.
2. Navigate to: Task Scheduler Library\Microsoft\Windows\Servicing\StartComponentCleanup.
3. Right-click the task and select Run.

The system scans for and removes unneeded components in the background to reduce WinSxS folder size. These components, part of Windows features and updates, can accumulate over time. This automatic cleanup process helps free up disk space on your Windows 11 computer.

Summary

To safely manage your WinSxS folder size, always use Windows’ built-in tools like Task Scheduler, Disk Cleanup, or the DISM command. Manually deleting files can seriously damage your system, so stick to these approved methods to keep your PC running well and save space.