Please think adding these locations in CCleaner. I have got these locations from R-Wipe &Clean (http://www.r-wipe.com/).
Auxiliary Traces
Internet Explorer can store some traces of its activity (e.g., page encodings, page setup)
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International
"CNum_CpCache"
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International
"CpCache"
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PageSetup
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\LowRegistry\Audio\PolicyConfig\PropertyStore
Cached Certification files
System store a cache of Certificate Revocation Lists (CRL), Certificate Trust List (CTL). Certificates and other documents used for authentication of web site certificates.
AppData\LocalLow\Microsoft\CryptnetUrlCache\Content
AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData
Cached DOM Files
System store a cache of DOM (Document Object Model).
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\DOMStorage
AppData\Local\Microsoft\Internet Explorer\DOMStore
Cached Shell Extensions
System store some information about Shell Extensions (like added shortcut menu items, etc) of various applications that are installed in the system
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached
There is another location 'Cached Documents' that I was not able to get the path. I am listing the description here.
Cached Documents
System store a cache of various documents (such as Microsoft Word Document, Microsoft Excel Workbook, Microsoft PowerPoint Presentation, etc) opened in Internet Explorer