Since upgrading to win7, I have been plagued by an extremely slow file copy operations while copying files in different HD/removable drives. Copy starts normally and quickly slows down to 1mb/s or even to kb/s speed at times. On removable drives, it can result in failure to copy. Ive tried different things to correct this and tried to use "fastcopy" as an alternative copier. So far, I've had no luck fixing this issue. I suspect it might be that my PSU is not giving enough juice to my hardware? Expert advice needed on what to do! Cheers and ty.