OK, This should be a simple one for you guys.
I have a Maxtor One Touch 4 External USB back up drive connected to my Vista 64 bit system. On the external drive I have a folder I use for manual back-ups separate to the automated back up program.
The folder is about 5gb and has about 10 sub folders which all contain photos & videos, there are also a few thousand photos contained in the main folder itself.
I have just noticed that certain files and all sub-folders are now invisible and I cannot access them through windows explorer. If I try to copy an alphabetical named file from my main harddrive to the external drive (which i know i exists in the location on the external drive), I get the normal windows overwrite warning even though the file is not visible.
The strange thing is, only files which have a numerical file name (i.e 34556.jpg) are visible in the main folder; only the Alphabetical files (i.e. photo.jpg) appear to be invisible. All sub folders are invisible also.
The error seems to only apply to this folder only, I can see alphabetical files and sub folders in the back-up locations user by maxtor program.
I have also unplugged the drive and tried on a XP Pro machine, and there is no change.
I am currently running a data recovery program to see if it can retrieve the invisible files etc.
Any help would be appreciated.