Download, install, and run the OneDrive Duplicate Finder Tool. You will get three options at the start:
Initially, click Launch to begin the software.
Now, you will be redirected to the browser where the software runs. Select either Personal or Business Account for your OneDrive and click Sign In.
In the next window, choose the Microsoft account connected to your OneDrive account to proceed with the login.
Next, enter the password for your account and click Sign In to log in to your OneDrive.
Once you click Sign In, a new browser window opens with the authentication successful message as shown below.
Once inside the software, the first panel gives a preview of your storage summary. It shows all important details like the User ID, Total, Used, and Available Space, and Timestamp.
Now, after the preview, click the Scan All Folder button to check the folders, locate duplicates, and then delete as desired.
A list of all the folders in your OneDrive appears after the scanning completes. Select the folders and click the Find Duplicate Files button to search for duplicates in the folders selected.
Wait until all the duplicate files are scanned from the OneDrive folder selected. You can click the Stop button in between to halt the process if desired.
Once the scanning completes, the software displays the total no of duplicate files found in your OneDrive folder groups. Click OK.
Now, you get different options where you can find and delete duplicates. You can choose to search for similar files altogether or in Documents, Music, Videos, Image, Archive, and Others separately as desired.
Further, you can apply the filters to retain duplicates with the Select Duplicates button. It gives you three options:
Once you choose the duplicates to eliminate, click the Delete Option button to select how to manage them. You get two options here:
Once you choose to Delete or Trash duplicates, a confirmation pop-up appears. Click OK to confirm.
Finally, all the duplicate files will be deleted, and you can see the successful message with no of duplicates deleted and the space freed from OneDrive. Also, there is a Generate Report button, which you can use to download a CSV for the complete de-duplication report view.
Besides deleting files in groups by selection, this tool also offers an Auto Delete feature. You can choose it from the Home page.
After you choose to Auto Delete, a dialog appears with options for how you want to manage the auto-deletion of OneDrive duplicates. The options available are:
Pick the option for how you want to manage deletion and click OK.
After the selection, a pop-up appears to ask for confirmation to complete the auto-deduplication as per the selected option. Click OK to confirm.
After confirmation, all your duplicates are deleted, and the count and size are displayed. You can click Download Report to check the CSV report of your process. If done, you can press Sign Out at the top to exit this Drive Account and continue with duplication removal for others.
The CSV Report downloaded can be opened with Excel. Here you can see both downloaded reports, whether selective duplicate removal or auto duplicate removal. The first report is for the selective removal, and the second one is for auto removal.