Bug Report [C:\Windows\Temp\9wn35dl8.tmp is corrupt or unreadable]

I just downloaded version CCleaner 2.14.750 (Standard Build), and ran it. The program runs and deletes the files, but afterwards I got an error message on my system tray (in a traytip) with title "CCleaner.exe - Corrupt File" and said "The file or directory C:\Windows\Temp\9wn35dl8.TMP is\ncorrupt and unreadable. Please run the Chkdsk utility." (with "\n" being the newline character)

I ran CCleaner multiple times, without restarting, and the same error popped up, with the same file beng corrupt/unreadable).

Below is a screenshot of the error.

post-24969-1227795096_thumb.png

update:

I downloaded the portable version and got the same error (same file name and all).

The traytip pops up while the files are being cleaned, not afterwards.

post-24969-1227795096_thumb.png

Maybe some malware infection trying to "protect itself" but that's just speculation as it could be anything. Although I do notice the Security Center alert in your systray near the clock.