Golf1

Hi Hazelnut Yes its me. Thanks for your reply.

Hi Nikki605 Thanks for your reply. No the mpcache file is not a EXE but a Bin file and can be quite large. It has been suggested that my computer might be infected as nobody as yet seems to recognise this mpcache bin file. In Windows Explorer it appears under Microsoft Antimalware folder inside the scan folder. My computer however runs ok and I used both MSE antivirus and Malwarebytes and no problems have been reported with any scans todate. I did have McAfee Security Centre installed about a year ago but did not used their dedicated tool to uninstall and this has been suggested as a likely cause of the mpcache bin file but if it is it has taken a long time to appear? This mpcache file has only recently started to appear when using Piriform Defrag but not everytime. When it is present it does not defrag at first but does when highlighted seperately. Opinions on this matter will be much appreciated.

In Defrag results I have recently found a file listed as mpcache which does not defrag automatically. Has anyone else come across this file? I can defrag by highlighting this file which can contain quite a number of items which appear to relate to my computer security systems. I have scanned my computer using MSE and Malwarebytes and no adverse results are found. I have used Defrag for quite sometime but this particular file has only been showing itself recently. Advice on this query will be much appreciated.