Cannot read files on usb HDD

[TomDe]

Have new computer with windows 7. Removed HDD ("C" drive) from old computer (also win 7) and installed it as a USB drive. I cannot see ALL (only some) of the folders and virtually none of the files. I know that at least some of the files exist because I installed Picasa and it grabbed the pictures from the old drive. How can I see these files to copy to my new computer?

[Geek-9pm]

You can't. The USB adapter has an issue.
Use a different method.
Does the old PC work? If so, do the transfer using the Ethernet connection. Or a Lap Link cable.
Did you read this?
http://en.wikipedia.org/wiki/Windows_Easy_Transfer
The above article has some issues, but gives the general idea of methods that might work.

The point  is that obviously you can not use that USB adapter. Later, if you want, you can find out why. But for now, it just doesn't not work.