For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Easy Context Menu - Easy Context menu is a Freeware portable utility that includes useful tweaks for the context menus.
Dropbox - Online Sync and File Sharing
Shell context menu manager - Powerful and lightweight context menu manager for Windows File Explorer.
Google Drive - Access and sync your files anywhere
Default Programs Editor - Default Programs Editor is a powerful but simple file association utility for Windows 7, Vista and...
Mega - Secure File Storage and collaboration