I would suggest setting up a Task Schedule once a month to check on the temp folder. That is done by running a program. For now you could run Explorer.exe %Temp%
My Temp Folder Purge project could be modified to bring up a Summary Count and Size of files older than 14 or 30 days. A button could then delete them, or open Explorer to the Temp folder.
It also has a feature to Remove Empty Folders over 14 days old. That saves the hassle of opening folders to see if they have files. My %Temp% current has 177 folders.
I made a note to look at creating this utility. The Editor Find Clean utility I have a task schedule to run every 1st of the month which works well so I don’t forget.