What is the Hidden .849C9593 File in OneDrive and Should You Delete It?
Question details
The user wants to understand the purpose of a specific hidden file named .849C9593-D756-4E56-8D6E-42412F2A707B found in OneDrive or SharePoint folders.
- Product
- Microsoft OneDrive
- Device & OS
- not provided
- Scenario
- Viewing hidden files in OneDrive or synchronized SharePoint directories.
- Observed behavior
- A hidden file named .849C9593-D756-4E56-8D6E-42412F2A707B appears, and its modification time updates when the computer starts.
Before interacting with hidden system files in your cloud storage directories, ensure that your OneDrive client is fully synced and up to date to prevent accidental data synchronization errors.
Understand and Leave the .849C9593 File Intact
This file is a critical system component for OneDrive synchronization and should not be altered or deleted.
The file named .849C9593-D756-4E56-8D6E-42412F2A707B is an encrypted OneDrive system file used to manage folder synchronization.
Its primary function is to help OneDrive identify new or modified files efficiently, preventing the app from having to resynchronize the entire folder structure from scratch every time you start your computer. This explains why its modification time frequently updates upon system startup.
Locate the file in your OneDrive or SharePoint folder. It will only be visible if you have enabled the 'Show hidden files' option in your File Explorer.
Avoid deleting, moving, or renaming this file. Doing so may disrupt OneDrive's synchronization process and force a complete resync of your files.
If the file is distracting, you can hide it again by opening File Explorer, clicking on the 'View' tab, and unchecking the 'Hidden items' box.
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While OneDrive handles your file synchronization, you need a reliable and lightweight office suite to open, edit, and create your documents. WPS Office is a powerful, free alternative to Microsoft Office that integrates perfectly with local and cloud storage directories.
- 1. Download and Install: Download WPS Office Free from the official website and complete the installation.
- 2. Open Cloud Files: Launch WPS Office, click on 'Open', and navigate to your local OneDrive folder to access your synced documents.
- 3. Edit and Save: Edit your files directly in WPS Office. When you save, OneDrive will automatically sync the changes to the cloud.
Frequently Asked Questions
Is the .849C9593 file a virus or malware?
No, the .849C9593-D756-4E56-8D6E-42412F2A707B file is a legitimate, encrypted system file created by Microsoft OneDrive to manage file synchronization. It is safe and should be left alone.
What happens if I accidentally delete the .849C9593 file?
If you delete this file, OneDrive will lose its quick-reference sync data. As a result, OneDrive will likely perform a full scan and resynchronization of all files in that folder, which may take a significant amount of time depending on the folder's size.
Why does the modification date of this hidden file keep changing?
The modification time changes because OneDrive updates this file every time it checks for new or modified files, which typically happens when you start your computer or when changes are detected in the synced folder.
Why do I only see this file on some computers and not others?
This file may only appear in specific OneDrive installations or versions. Additionally, you will only see it if your computer's File Explorer is configured to show hidden files and folders.
