Unofficial versions lack proper file-locking mechanisms. Users often report fatal errors and permanent data loss when trying to save or sync files directly through cloud services like Google Drive. Instability:

The ability to carry a powerful CAD (Computer-Aided Design) suite in a pocket.

Google Drive is a popular cloud storage service that allows users to store and access their files from anywhere. By storing your AutoCAD 2015 portable on Google Drive, you can access your software and files from any computer with an internet connection.