Microsoft Explains How to Find and Stop Processes Blocking Files in Windows
Microsoft has provided comprehensive guidance on resolving one of Windows users’ most frustrating issues: the dreaded “The process cannot access the file because it is being used by another process” error message.
This common problem occurs when multiple programs attempt to access the same file simultaneously, leaving users unable to delete, move, or modify important documents and folders.
Built-in Solutions Lead the Way
The tech giant recommends starting with Resource Monitor, a powerful diagnostic tool already installed on every Windows system.
Users can access this utility by pressing Win + R, typing “resmon,” and hitting Enter. Once opened, the CPU tab reveals an Associated Handles section where users can search for specific file or folder names.

The tool displays which processes are currently using the file, showing both the application name and Process ID (PID) for easy identification.
For users who need to terminate the blocking process, Resource Monitor allows right-clicking on the offending program and selecting “End Process.”
However, Microsoft advises caution when ending processes, as this action could cause data loss or system instability.
Advanced Tools for Power Users
Microsoft also highlights Process Explorer, a free Sysinternals tool that offers more detailed process information.
This advanced utility can be downloaded directly or installed using the WinGet command: winget install Microsoft.Sysinternals.ProcessExplorer. Process Explorer must run with administrator privileges to function properly.
The software’s search functionality, accessible via Ctrl + F or through the Find menu, allows users to locate specific file handles quickly.
Once found, users can close individual handles by right-clicking and selecting “Close Handle,” though this feature requires careful consideration of potential consequences.
For users comfortable with command-line interfaces, Microsoft suggests two additional tools.
The built-in openfiles command can display currently open files and their associated processes, though it requires enabling with openfiles /local on and a system restart before becoming effective.
Alternatively, the Sysinternals Handle utility offers command-line file handle detection. Available through winget install Microsoft.Sysinternals.Handle, this tool can be executed with specific filenames to identify blocking processes quickly.
These solutions address a persistent issue that affects Windows users across all skill levels. Whether caused by applications that haven’t properly released file handles, background processes, or system services, file locking problems can significantly impact productivity.
Microsoft’s comprehensive approach provides options for both casual users who prefer graphical interfaces and advanced users who favor command-line tools.
The guidance represents Microsoft’s ongoing effort to empower users with built-in and freely available tools to resolve common system issues independently, reducing reliance on third-party software while maintaining system stability and security.
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