Google offers 15 GB of online storage space to all its users, that is shared across three of its most used services i.e Google Drive, Gmail & Google+. 5 GB of the 15 GB storage space is dedicated to Google Drive.
To free up Google Drive space, first you need to check that what is taking up so much space on your Google Drive. If you want to check it, then go to https://www.google.com/settings/storage. you will see a pie chart which shows you how much space you are taking and how much space is remaining. Here you can see the Google Drive's storage plans. If your remaining space is less and you want more space, then you can upgrade your plan. You can upgrade your free 5 GB account to a paid monthly subscription plan for more storage space. Google Drive offers 100GB space for $1.99/month and 30TB space for $299.99/month.
Google Drive counts your Gmail accounts emails, attachments, photos larger than 2048 x 2048 pixels and videos longer than 15 minutes in your Google+ Photos towards your storage limit.
Once you have checked your storage space, then you can free up Google Drive space. To do so, open "Google Drive" and click "My Drive. You will see you files and folder in grid view. Click "List View" button located at the top right corner of the window. Now you will see all of your files and folders listed and sorted by name. It allows you to sort your files and folders by file size. But if you click "Sort" option located at the top right corner of the window, then you will see the 4 sort options i.e 'Name', 'Last modified', 'Last modified by me', and 'Last opened by me'.
But still you can sort your files and folders by size. Once you opened Google Drive, you will see the amount of storage space that you are using and a link that says "Upgrade Storage" located at the bottom left corner. Hover over on it, a pop up box opens up. You will see 3 options i.e Drive, Gmail and Google Photos. Click "Google Drive", your Drive folder will now be sorted by "Quota used" or file size. Now you can selete the larger files to free up the Google Drive space.
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