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Uninstall & Reinstall Issues

How to Fix the OneDrive Account Already Connected Error on Mac

Maira MehtabMaira Mehtab Oct 7, 2026 868 views

Question details

The user needs to resolve an error preventing OneDrive from connecting to their account on a Mac.

How to Fix the OneDrive Account Already Connected Error on Mac
Product
OneDrive
Device & OS
Mac
Scenario
Switching between the Mac App Store version and the Microsoft-distributed version of the OneDrive application.
Observed behavior
OneDrive displays an 'Account Already Connected' error because another application version remains linked to the same user account.
Before you start

Before proceeding, click the OneDrive cloud icon in your Mac menu bar, click the gear icon, and select 'Quit OneDrive' to ensure the application is not running in the background.

Solution 1Recommended

Perform a Clean Uninstallation and Reinstallation of OneDrive

This method removes the existing OneDrive app and clears residual account data from the Mac CloudStorage directory, allowing a fresh connection.

When switching between the App Store and standalone Microsoft versions of OneDrive, cached configuration files often conflict. Deleting these leftover files before reinstalling is the most effective fix.

1
Uninstall the OneDrive App

Open 'Finder', navigate to the 'Applications' folder on the left sidebar, locate the Microsoft OneDrive app, and drag it to the Trash.

2
Clear Residual CloudStorage Data

While in Finder, press 'Command + Shift + G' on your keyboard to open the 'Go to Folder' prompt. Type '/Users/<username>/Library/CloudStorage' (replacing <username> with your Mac user account name) and press Enter. Locate the OneDrive folder and delete it.

3
Restart Your Mac

Click the Apple logo in the top-left corner of your screen and select 'Restart'. This ensures all background cache processes related to OneDrive are fully terminated.

4
Reinstall the Official Version

Visit the official Microsoft OneDrive release notes page, download the latest Mac version, run the installer, and sign in with your Microsoft account.

Perform a Clean Uninstallation and Reinstallation of OneDrive
File Safety: Deleting the local OneDrive folder in the CloudStorage directory will not delete your files stored in the cloud. They will resync once you sign back in.
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Frequently Asked Questions

Why does OneDrive say 'Account Already Connected' on my Mac?

This error typically occurs when you switch between the Mac App Store version and the direct download version of OneDrive. Residual configuration files from the previous installation trick the system into thinking the account is still actively logged in.

Will I lose my files if I delete the OneDrive folder in CloudStorage?

No. Deleting the local OneDrive folder in the '/Users/<username>/Library/CloudStorage' directory only removes the local cache. Your original files remain safe on Microsoft's cloud servers and will download again upon reinstalling.

How do I open the CloudStorage folder if I can't find it manually?

The Library folder is hidden by default on macOS. To access it easily, open any Finder window, press the shortcut Command+Shift+G, and paste the path '/Users/<username>/Library/CloudStorage', then hit Enter.