Frequently Asked Questions
Frequently Asked Questions
Troubleshooting "The process (name "MFClient.exe", ID XXXX) attempted to delete the file" error
Posted by Sakari Heinonen (M-Files) on 11 May 2018 04:52 PM


If the anti-virus software protection in use has not been excluded from M-Files, The error message below may be triggered and M-Files add-ins may be disabled. This can cause performance issues in M-Files Server and M-Files Server administrators can notice lot of "File downloaded" events in M-Files event logs.


The process (name "MFClient.exe", ID XXXX) attempted to delete the file "\XXXXXX\XXX\XXXXXXXXXXXXXXXXXX\X\XXXXXXXXXXX\XXXXXXXX\X\X\xx{x} xx{x}xxxxx - xxxxxx - xxxx -xxxx xxxxxxxxxxxxx (xxxxxx).xlsx" of the object (ID xxxxxx, type x.


Please ensure that the virus scanners on the end users' computers do not perform scheduled scanning for the virtual M-Files drive (the M: drive by default). A scheduled scan for the M-Files drive would load all the content from the M-Files server to the user's client and unnecessarily strain both the network and the server.

To make the best performance, you may wish to disable any real-time scanning for the virtual M-Files drive (the M: drive by default) and the M-Files installation folder (C:\Program Files\M-Files\ by default). Excluding these locations from real-time scans can help prevent unnecessary system load and possible conflicts between M-Files and the anti-virus software.

On the M-Files server machine, you should ensure that the following processes are excluded from any real-time virus scanning






The default location of these processes:

On 64-bit systems is C:\Program Files\M-Files\<version>\Bin\x64\ , and

On 32-bit systems the default location is C:\Program Files\M-Files\<version>\Bin\x86\,

With the exception of MFServerAux.exe, which is found in C:\Program Files\M-Files\<version>\Bin\x86\

On both 32-bit and 64-bit systems.

In addition, you should ensure that the following folders are excluded from virus scanning:

The M-Files installation folder, which is located in C:\Program Files\M-Files\ by default

The vault data folder, which is located in C:\Program Files\M-Files\Server Vaults\ by default

If the processes and folders listed above are not excluded from virus scanning on the M-Files server machine, users may experience poor vault performance or it may cause faulty backups of the vault data.

If your anti-virus software supports excluding processes by name, it is usually a good idea to exclude the MFClient.exe process from any real-time scanning on the client computers. By default, the path to MFClient.exe is C:\Program Files\M-Files\<version>\Bin\x64\MFClient.exe on 64-bit systems and C:\Program Files\M-Files\<version>\Bin\x86\MFClient.exe on 32-bit systems.


For more information, please check the following link 


Last edited: May 11th, 2018
M-Files Customer Support Team,



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