OneDrive Error 0x80070185 When Opening Cloud Files

You try to open a file stored in OneDrive and see error 0x80070185. The file appears in File Explorer with a cloud icon, but double-clicking it fails. This error means Windows cannot retrieve the file from the cloud server on demand. The root cause is usually a broken network connection, a corrupted OneDrive cache, or a system file conflict. This article explains why the error occurs and provides four tested fixes to restore access to your cloud files.

Why OneDrive Error 0x80070185 Appears When Opening Cloud Files

Error 0x80070185 is a Windows system error code that translates to “the cloud file provider failed to retrieve the file.” OneDrive uses a filter driver to intercept file open requests. When you double-click a cloud-only file, the driver contacts the OneDrive service to download the content. If the network is unstable, the service is blocked by a firewall, or the local cache is corrupt, the driver returns error 0x80070185 instead of the file data.

The error is not a file corruption issue. The file remains intact on Microsoft servers. The problem is entirely on the communication path between Windows, the OneDrive filter driver, and the cloud service. Common triggers include:

• A VPN or proxy that interrupts the download stream
• Antivirus software that blocks the OneDrive filter driver
• A corrupted OneDrive sync database that holds incorrect file state information
• Windows Update or driver changes that break the Cloud Files API

Understanding this root cause helps you choose the correct fix instead of reinstalling OneDrive unnecessarily.

Steps to Fix OneDrive Error 0x80070185

Try these fixes in the order shown. Each method addresses a different layer of the problem. Test file access after each step before moving to the next.

Method 1: Reset the OneDrive Sync Connection

Resetting OneDrive clears the local sync database and re-establishes the connection to Microsoft servers. This fixes most cache-related instances of error 0x80070185.

1. Open OneDrive Settings
   Right-click the OneDrive cloud icon in the notification area and select Settings. If the icon is missing, press the Windows key, type OneDrive, and press Enter.
2. Go to the Account tab
   In the OneDrive settings window, click the Account tab.
3. Unlink this PC
   Click Unlink this PC. A confirmation dialog appears. Click Unlink account to confirm.
4. Restart OneDrive setup
   OneDrive closes and reopens with the setup wizard. Enter your work or school email address and sign in. Select your sync folder location and click Next.
5. Wait for sync to complete
   OneDrive rebuilds the file list from the cloud. After the initial sync, try opening the file that previously showed the error.

Method 2: Run the Windows Network Troubleshooter and Reset Network Stack

A misconfigured network adapter or DNS cache can prevent OneDrive from downloading files. The built-in Windows troubleshooter detects and repairs many common issues.

1. Open Windows Settings
   Press the Windows key and click the Settings gear icon.
2. Run the network troubleshooter
   Go to System > Troubleshoot > Other troubleshooters. Find Network and Internet and click Run. Follow the on-screen instructions.
3. Reset the network stack
   Open Command Prompt as administrator. Type netsh winsock reset and press Enter. Then type netsh int ip reset and press Enter. Close Command Prompt.
4. Restart your computer
   A restart applies the network changes. After the restart, open a cloud-only file to test.

Method 3: Delete the OneDrive Cache Manually

If resetting OneDrive does not work, a deeper cache deletion may be needed. This method removes all cached file metadata without unlinking your account.

1. Close OneDrive completely
   Right-click the OneDrive cloud icon and select Quit OneDrive. Verify no OneDrive processes are running in Task Manager.
2. Open the OneDrive cache folder
   Press Windows key + R, type %LocalAppData%\Microsoft\OneDrive, and press Enter.
3. Delete the cache subfolders
   Inside the OneDrive folder, look for folders named settings, logs, and databases. Delete all files inside these folders. Do not delete the folders themselves.
4. Restart OneDrive
   Press the Windows key, type OneDrive, and press Enter. Sign in if prompted. OneDrive rebuilds the cache from the cloud.
5. Test file access
   Try opening the file. If the error persists, proceed to Method 4.

Method 4: Repair or Reinstall OneDrive

When the OneDrive installation itself is damaged, a repair or clean reinstall resolves the filter driver and registry entries.

1. Open Apps & Features
   Press Windows key, type Apps & Features, and press Enter.
2. Find Microsoft OneDrive
   Scroll the list or use the search box. Click the three dots next to Microsoft OneDrive and select Modify.
3. Choose Repair
   In the OneDrive setup window, select Repair. The repair process runs and may take several minutes.
4. Restart and test
   Restart your computer. Open a cloud file. If the error still appears, uninstall OneDrive completely, restart, and download the latest version from the Microsoft 365 admin center or onedrive.live.com.

If OneDrive Still Shows Error 0x80070185 After the Main Fix

OneDrive Error 0x80070185 on a VPN or Corporate Network

Corporate networks often use VPNs, proxies, or firewall rules that block OneDrive traffic. Disconnect from the VPN temporarily and test file access. If the file opens, configure the VPN to allow traffic to onedrive.live.com and all subdomains on ports 443 and 80. Contact your IT department for the exact proxy exclusion list.

OneDrive Error 0x80070185 After a Windows Update

A recent Windows Update may have replaced the OneDrive filter driver with an incompatible version. Open Windows Update in Settings, click Update history, and select Uninstall updates. Remove the most recent update, restart, and test. If the error goes away, pause updates and report the issue to Microsoft via the Feedback Hub.

OneDrive Error 0x80070185 When Using Files On-Demand

Files On-Demand relies on the Cloud Files API. If you disabled Files On-Demand in OneDrive settings, re-enable it. Right-click the OneDrive cloud icon, select Settings, go to the Sync and backup tab, and check Save space and download files as you use them. Click OK. Then right-click the file in File Explorer and select Always keep on this device to force a full download.

Files On-Demand vs Always Keep on This Device: Key Differences

Item	Files On-Demand	Always Keep on This Device
Description	Files appear in File Explorer but download only when opened	Files are fully downloaded and stored locally at all times
Disk space used	Minimal – only metadata and thumbnails	Full file size for each marked file
Error 0x80070185 risk	Higher – requires network access on every open	Lower – file is already on disk
Offline access	Not available unless file was previously opened	Available even without internet
Sync status icon	Blue cloud icon	Green check mark

After applying the fixes above, you can open cloud files without seeing error 0x80070185. If you frequently work offline, right-click important files and select Always keep on this device to prevent the error from recurring. For persistent network-related cases, ask your IT team to whitelist the OneDrive endpoints in your corporate firewall.