WinSxS
Windows uses a system folder called WinSxS to store files that are needed for your Windows installation, as well as backups or updates to those files. It’s a space hog, however, taking up several gigabytes of space and growing with each Windows Update you perform. Use the steps below to clean up unnecessary files in that WinSxS folder and reclaim valuable hard drive space. 1
- Laptop.com, Melanie Pinola, April 23, 2016 – How to Save Space By Cleaning Windows’ WinSxS Folder
