How to Check Your Storage Usage in OneDrive Step 1 Log in to your email account with the browser of your choice Step 2 Click on the Office 365 app button () in the upper left corner. Step 3 Select the OneDrive icon. Step 4 Click on the gear icon. Step 5 Click on OneDrive settings. Step 6 Click on More Settings. Step 7 Click on Storage Metrics. Last modified: March 16, 2021