0x80070780
Moderate
Microsoft · Windows
The file cannot be accessed by the system. Windows cannot read or write to a required file due to permissions, encryption, or file system corruption.
Quick Answer
Error code 0x80070780 on your Microsoft Windows means: The file cannot be accessed by the system. Windows cannot read or write to a required file due to permissions, encryption, or file system corruption.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Take ownership of the file or folder: Right-click the file/folder > Properties > Security > Advanced > Owner > Change. Enter your username, check 'Replace owner on subcontainers and objects', click OK.
2
Reset file permissions: Open Command Prompt as Administrator and run: icacls C:\path\to\file /reset /t /c to reset permissions to inherited defaults.
3
Check if the file is encrypted: Right-click the file > Properties > General > Advanced. If 'Encrypt contents to secure data' is checked, you need the EFS certificate to decrypt it.
4
Boot into Safe Mode to access files that may be locked by running services or programs.
5
Run chkdsk C: /f to repair file system corruption that may be causing inaccessibility.
6
If the file is in the Windows Update cache, delete the SoftwareDistribution folder and let Windows re-download updates: net stop wuauserv, rmdir /s /q C:\Windows\SoftwareDistribution, net start wuauserv.
7
Check for third-party security software (antivirus, data loss prevention) that may be blocking file access.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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