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.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Dropbox - Online Sync and File Sharing
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
Google Drive - Access and sync your files anywhere
XYplorer - File Manager for Windows
Mega - Secure File Storage and collaboration