How to set a filter in Process Monitor ( ONLY)

Answer

If you ever have to use Process Monitor (formerly Process Explorer) to find out which process is holding onto a file that needs to be accessed, you can follow these steps:

1. Download Process Monitor from here: http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
2. Start capture (enabled by default, but can be toggled in the File menu)
3. Click Filter
4. In the dropdown menu, click Filter…
5. Change the two dropdown menus to display Path, then Contains instead of the default 
6. In the text field to the right, write out all or part of the file path (e.g. C:\Windows\filename.exe)
7. Click Add and then OK. The filter should now only display when that filepath is accessed.