Open File Explorer and navigate to the shared folder.
Press F3 key on the keyboard, you will see in search field drop-down menu, click on the
Date modified: under Add a search filter and choose time filter as you need. You can select search criteria from predefined patterns or type in the search field range of date as:
datemodified:1/1/2000 .. 8/22/2018
If you need to find files/folders that wasn't modified after some date, you can use < character in front of date:
datemodified:<1/1/2010
It will find recursively all files and folders that are older than 1/1/2010
When explorer stop searching, switch view to Details and press on column Date modified to sort found files and folders and delete those you thing are no longer in use.
You can also search by accessed or created date using search filter as:
datecreated:
dateaccessed:
If you want to automate removing of old content, you can use console utility: forfiles
To delete recursively folders/files that wasn't modified an year ago and later from folder C:\SomeFolder:
forfiles /s /p "C:\SomeFolder" /d -365 /c "cmd /c del @path"
If you want just list old files/folders instead of deleting them, you can use:
forfiles /s /p "C:\SomeFolder" /d -365 /c "cmd /c echo @path [@fdate]"
Use forfiles /? to get more info regarding this utility included with your windows
You can even create a batch file and run it via task scheduler to automatically delete old content.
P.S.
If you want to find and remove old directories/files using Linux, it is much simpler:
To list old content:
#!/bin/sh
srcDir='/Path/to/share/'
daysAgo='360'
find "${srcDir}" \( -type f -o -type d \) -a -mtime +"${daysAgo}"
To remove old content:
#!/bin/sh
srcDir='/Path/to/share/'
daysAgo='360'
find "${srcDir}" \( -type f -o -type d \) -a -mtime +"${daysAgo}" -exec rm -fd '{}' \;
If you want to remove directories recursively use rm -fdr in place of rm -fd
