I have never had a problem defragmenting before but suddenly within the past few months I get a message before defrag. is complete telling me that defragmentation cannot be completed due to some files that cannot be moved. When I ask what is just gives sizes but does not tell me where the problem is. If does tell me how many fragments there are (too many) and the basic application it is in. Any ideas how to fix this? II have only 55 % free space or 39.09 GB. My fragmentation is 20% listing file fragmentation at 40%. Total files included 83.033. Help!1 person needs an answerI do too