WDsmartware building etilqs_ files in my windows temp folder - filling my drive!

I must be having the same problem?  I have lost 5 gigabytes from my hard drive in the last few days, tracked it down to the etilqs_ files in my temp folder and the most recent change I’ve made to my PC is creating a back-up plan using SmartWare.  This doesn’t seem right.  I’ve noticed my PC has slowed down a bit too.