You could use forfiles to enumerate and process files not modified longer than (or since date), for example (as shown on linked MS page - this would simply list them)
forfiles /s /m *.* /d -365 /c "cmd /c echo @file is at least one year old."
After you've verified it works as you'd want it to, put it in a batch file and schedule using Task Scheduler (or use schtasks if you prefer command line).
[Edit]
If creation date (not modification) date is required, I would resort to powershell: This one liner gets and prints all files created earlier that 365 days.
Please note it does not strip times from dates (so comparison takes not only date, but also time of creation and time when it runs)!
powershell -command "gci |? {$_.CreationTime -lt (get-date).addDays(-365)} |% "
To delete instead of list, replace write with del
To strip time from dates, use (get-date).date You may also want to exclude folders from processing