By default tools like Disk Cleanup is not installed. So in order to clear up issue like the WinSxS directory filling up, you will need to install the utility.
To install the Disk Cleanup utility:
CAUTION: Reboot is required to complete installation.
- Open Server Manager
- Go to Features
- Select Add Features
- In the wizard, find and select the Desktop Experience option. Click Next and install the option.
- Once installed, reboot the system to complete the installation.