Protect Data on Unknown Computers

[bittutora]

Hey, Guys,
I have been searching for a solution to this problem for days.
The problem is I have an external Hard Drive and I want to disable access to a Folder on it that contains my personal data from any other computer except the one on which access settings are being setup.
And the other computers that I want to protect my Data from are those that may be complete strangers' PCs or some Friends' PC, etc.

I have read about Windows EFS also but I don't know it is going to work in this case.

I will appreciate any input, Please help, guys.

 

[WyomingKnott]

Windows EFS will work. However, if the original machine goes dead you won't be able to read the files unless you saved copies of the certificate/key, so be very sure to have backups of that in a safe place.

Why do you want to keep one-system-only data on an external hard drive?