I've got three players spun up on Amazon with modest but sufficient resources to do the job. So far I've got 6 monitors assigned to each player. I've noticed that the seum-user-# subdirectories grow larger than the cache settings allow in the browser settings which suggests the cause is not temporary IE files. More than once they've consumed nearly the entire disk space. The culprit folder appears to be C:\users\seum-user-#\appdata\local\microsoft\windows but the contents of that folder do not add up to what the file browser says should be in there [with the hidden file attribute set to display]. The first couple of seum-users seem to be the bigger disk-hogs.
It's a relatively vanilla set up. Amazon provides Win08R2 plain Jane instances, I've added only the Player executable.
I've read other threads where it was suggested to stop the player service and delete the accounts or delete the temporary files folder [which doesn't appear to be the problem folder]. The better solution is to not have these user account folders over-grow their banks at all. I'm not the OS maven I hoped to be and looking for advice/clues/commiseration.
Pls/Thnx...Fred