I am using Win 7, and one fine day, I was wondering where my precious disk space went. And upon analyzing, I found that almost 10 GB were used in a folder call WinSXS under Windows folder.
After hours on Googling, I have found that If you’ve installed Windows 7 SP1 over your existing Windows 7 installation, then you may have a certain folder named “winsxs” in C:\Windows\ that is rather large. You can find detailed explanation of what this folder contains here:
Now, how to recover space. Solution to this huge (sizing in GB) problem is simple:
run dism /online /cleanup-image /spsuperseded /hidesp
Run above command in elevated command prompt (right click on Command prompt->Run as administrator).
Now you can store few more movies. 🙂