CCleaner NOT clean temporary Internet Explorer?

Hello

This may be a bug in Windows 10 / Internet Explorer or a failure of CCleaner?

CCleaner v5.22.5724 64bit, when performing cleaning always shows the end is left 5.121kb in Internet Explorer built into Windows 10 - such as temporary Internet files!

And I do not use Internet Explorer or Microsoft Edge! Only Firefox use.

If I go to Settings </span> Security </span> delete browsing history - there is the residue cited after cleaning by CCleaner.

Transcribe as feedback and solution of hope.