The new option Download folder is unchecked by default.
For those unaware, the Download folder is the default download location for files from the Internet.
The Disk Cleanup experience (cleanmgr.exe) is being deprecated.
Were retaining the Disk Cleanup tool for compatibility reasons, stated a Microsoftblog post.
Theres no need to worry since Storage Senses functionality is a superset of what the legacy Disk Cleanup provides!
source: www.techworm.net
