How to Determine Which Process Is Using a File

Process Explorer can tell you. The scenario typically looks like this.

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. N Indicates that the process is holding a non-blocking mandatory lock on the file. The USB not ejecting is a system event which is why were looking under Windows LogsSystem. The filter lets you narrow down which system events are listed in the Event Viewers pane.

If you prefer command line Sysinternals suite includes command line tool Handle that lists open handles. In case you are pretty sure you want to kill all the process using mnt run the below command fuser -km mnt mnt. The lsof command already mentioned in several answers will tell you what process has a file open at the time you run it.

Drag the icon and drop it on the open file or folder that is locked. On the left column expand Windows Logs and select System under it. How can I find out who is using a file in use.

On the right column select Filter Current Log. February 17th 2012. Lsof is available for just about every unix variant.

Click Find menu and then click Find Handle or DLL. Search for deleted processes occupying the filesystem. Windows often reports that a file is in use without telling you what program is using it.

Find which process has locked a file using. Open Process Explorer running as administrator. In the Device Manager locate your device right click on it and select Properties.

Re verify fuser -uvm mnt. Resource Monitor resmonexe Process Explorer from Microsoft Sysinternals Handle from Microsoft Sysinternals Find file handle via the right-click menu Openfilesexe built-in console tool Enable tracking of local file handles View open files and the corresponding process names. Type in the name of the locked file or other file of interest.

Identify which handle or DLL is using a file Open Process Explorer Running as administrator. Sysinternals Process Monitor can help you identify which processes create files in your temp directory. See mmap2 for details.

Click Search you can kill process from main Process Explorer window. But I dont know which processes are using it. Here I use the touch command to create the file append a string to it and then rm it from the command line.

If the process is using the file as. R Indicates that the process is. And thats ignoring the case that the reference is not coming from a process in the first place.

Type in part of the path to the file. You can use perfmon to look at the Process Page File Bytes counter for a process to see how much of the paging file in bytes a particular process is using. O Indicates that the process is using the file as an open file.

On Windows determining which processes are using a given device is easiest using the Process Explorer. Can anybody tell me how the find the processes which are using the specified file. Lsof is used on a file system to identify who is using any files on that file system.

Enter the keyboard shortcut CtrlF. But theres nobody keeping track of which processes own how many references. Copy and paste path to locked folder of file.

This can be accomplished by using a set of Windows API calls and Platform Invoke PInvoke functionality. In this post well take a tour of what it takes to identify the process that is locking a file. And using PowerShell.

Lsof devnull List of All Opened Files in Linux. The executable that is using the file will be highlighted in the Process Explorer main. It also contains events of creation Create File and writing to a file WriteFile by the processes cmdexe and powershellexe.

Determine which process is locking the file requires quite a few steps to interrogate the system. But I dont know which processes are using it. On the toolbar find the gunsight icon on the right pointed in the figure shown below.

Partial names are usually sufficient. C Indicates that the process is using the file as its current directory. For example c indicates the process is using the file system as its current directory while m indicates that the process is using a file mapped with mmap.

Of course I know the command Stop-Process can help me kill the process. A search dialog box will open. As you can see it contains events for creating a registry key by the regexe process Operation RegCreateKey.

Switch to the ProcMon window. One way to provide some sense of how. Res RmGetListhandle pnProcInfoNeeded pnProcInfo Nothing lpdwRebootReasons If res ERROR_MORE_DATA Then Create an array to store the process results Dim processInfo As RM_PROCESS_INFO New RM_PROCESS_INFOCIntpnProcInfoNeeded - 1 pnProcInfo pnProcInfoNeeded Get the.

To find a specific file use the menu option Find-Find Handle or DLL. Open the Windows Device Manager by searching for Device Manager in the Windows taskbar. The list of processes will appear below.

So now none of the processes are using mnt and it can be safely unmounted. You want to delete move or rename a file or maybe even just use it in another application and you get a message that says you cant. A file object has a reference count and when the reference count drops to zero the file is closed.

Classically there was no way to find out which process has a file open. Or press CTRL F. You could use Process Explorer from Microsoft.

Alternatively click the Find menu and select Find a Handle or DLL. You can run lsof command on Linux filesystem and the output identifies the owner and process information for processes using the file as shown in the following output. Lsof pathtofile lsof wont tell you about file that were opened two microseconds.

M Indicates that the process is using a file mapped with mmap2. Mac me touch aa mac me echo foo aa mac me rm aa There will be tons of other apps that read so you can filter on the stat64 and lstat74 operations if there are too many attribute reads and spotlight activity around the file once its. You have to set an appropriate filter so that you dont drown in the vast amount of log data.

In the Properties window select the Details tab.

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