There are 4 main ways to upload files to Google Drive. If you include syncing your computer to Drive, downloading Drive or the other ways to access the “New” menu (right-click, clicking on “My Drive” at the top) there are even more. But the 4 main ones are below, first as a list and then shown in a GIF:
- Click New > File Upload
- Click New > Folder Upload
- Click New > File Upload and use shift+click or ctrl+click to select multiple files
- Drag & Drop into the Google Drive window