Originally posted by: wired247
Indexing?
Originally posted by: BehindEnemyLines
You can check file activity in:
Task Manager > Performance Tab > Resource Monitor button
From Resource Monitor > Disk > Sort by file and look for the drive letter of your external drive. It should tell you which process and which file is being accessed.
Originally posted by: ViRGE
You need to find out which service it is, if possible. All that tells us is that some service is touching the master file table, but it doesn't say which service that is.