Wise Folder Hider is a free file/folder hiding tool. You can use it to hide files and folders on local partitions or removable devices.The data can’t be accessed by other programs or on other operating systems such as DOS or Linux. The only way to access or unhide these data is to enter the valid password. Visit Website
DOWNLOAD Portable Wise Folder Hider 1.1MB
Good: another system like ubuntu can’t find hidden folders..
Bad: Drag and drop not work.