Easy Context Menu - Easy Context menu is a Freeware portable utility that includes useful tweaks for the context menus.
BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
Shell context menu manager - Powerful and lightweight context menu manager for Windows File Explorer.
Mega - Secure File Storage and collaboration
Link Shell Extension - Link Shell Extension (LSE) provides for the creation of Hardlinks , Junctions , Volume Mountpoints...
Google Drive - Access and sync your files anywhere