copying/pasting files to ext hd

Hi, Geeks!
Just installed 7 (Pentium Dual Core - 2.6, 2 gig of memory). Transferring files onto external hard drives is now very hit and miss - mostly miss. Quite often the drive simply locks up, and sometimes, esp with smaller (it seems) files, it copies or pastes not too badly. There doesn't seem to be a common denominator between when files fail to move or copy.
Windows 7 does have a Hotfix for a problem like this, but it didn't make any difference in my case.

Anyone any idea? I've done about three hours of searches, with no progress.

 

I usually right-click, cut or copy, paste into position. Sometimes I right-click and move to or copy to.
Anyhow, after further attempts it appears to be individual files within the folders I'm moving. I get no error message of corrupt files or anything, yet certain files do seem to lock the hard drive, and sometimes, after a sort of partial transfer, track numbers or the album name or artist are missing.
I dunno, but at least it's narrowed down a bit.

 

Gonna have to disagree with you. Ev'ry time I copy/cut and paste I use this method, and I've moved/copied hundreds of thousands of individual files onto dozens of external hard drives; only since migrating to 7 have I had a problem, and only then has it been with simply a few files. Maybe some portion of the file is being... mislaid or whatever, but many, many terabytes haven't, using my... method; the problem appears to be with certain files onto certain externals.