Using Google Drive to Save and Retrieve Files

Most users will access Google Drive through the web client. The web client can be accessed by heading to https://drive.google.com/drive/ and following the onscreen login instructions. If you already have an always-logged-in Google account, the link should take you directly to your Google Drive’s main page. 

Uploading Files and Folders
If you're using the web client, you can upload documents in two different ways.
Firstly, you can simply drag the file or folder you want over the top of the Google Drive window.  You will be prompted to drop the file to begin the upload.

The alternative method is to use the menus within Drive. Click on New in the top left-hand corner, and then select either File Upload or Folder Upload, depending on your desired action.

Downloading Files and Folders
In the same way that you can upload individual files or entire folders, you can also download files and folders.
Simply select the item you wish to download and either right click on it and choose Download, or click on the three vertical dots for More Actions and choose Download. If you want to download more than one file/folder at once, hold either Ctrl (Windows) or Cmd (Mac) and click all the items you require.