Hello,
I was about to run a defrag program when I noticed that the free space had reduced considerably. I was quickly able to see that there were a number of large uiscan log files totalling >30Gb (see pic attached).
It is clear that this is not normal and I am wondering how to solve this problem. Would the easiest solution be to un/re-install?
Also, can I delete these large logfiles? 
Thanks.
PS: Could this new issue be in anyway related to using the file provided for solving the issue "the Scan Task Is Already Running" ?