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.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
Dropbox - Online Sync and File Sharing
CryptoForge - CryptoForge is handy-to-use file encryption program for individual and organization to get a reliable safety.
Google Drive - Access and sync your files anywhere
Dekart Private Disk - Dekart Private Disk is a powerful disk encryption software with distinctive features and functions, combining robust NIST-licensed AES 256-bit encryption with a simple and straightforward interface.
Mega - Secure File Storage and collaboration