Hi guys,
The thread http://community.wdc.com/t5/WD-Software/WDsmartware-building-etilqs-files-in-my-windows-temp-folder/m-p/307856#M4152 would appear to be closed, and so I could not add this reply.
As a possible cure for etilqs_… files filling up hard drive DO CHECK THAT the culprit is NOT FIREFOX, or your ANTIVIRUS SOFTWARE causing the problem!
It may not be WD causing the issue… 
Here are some (I hope helpful) other FIREFOX related issues I have copied here…
INFO
- That are temporary SQLITE database files (etilqs is sqlite spelled backwards). Such files shouldn’t be here. The presence of such files can be caused by security (anti-virus software) that keeps a handle on such files for inspection and makes it impossible to remove them.
- You need to check such software and exclude that folder from their scans.
REMOVAL
-
“if you want to play it extra safe, i would recommend moving those files somewhere. Then see how it goes, if it runs smooth for a few days, i would say its safe to proceed with deleting.”
-
http://discussions.virtualdr.com/showthread.php?252595-etilqs-how-to-view-and-remove
Hope that may help
Peace Man 
