>>>>>>Do you know of any freeware that would let block/unblock access to usb drives?
>>>>>
>>>>>You only need to change a registry setting, http://www.redmondpie.com/disable-usb-storage-in-windows-8-7-how-to-guide/
>>>>>
>>>>>In Tools->Task Pane->Solution Samples you find out how to work with the registry.
>>>>
>>>>Thanks Tore. I found similar info while googling. The thing is that I'd prefer a software freeware way to do it.
>>>
>>>What can be more "free" than just a few lines of VFP code? Well, it's your decision.
>>
>>Or a .reg file.
>
>Not really a very secure way of doing this though. ..guess it depends on how worried you are about it...

Well, if a registry setting has to be changed, then some process has to have enough privileges to be able to do it. There's no difference between a .reg file, doing it manually in RegEdit or building a little VFP utility that does it.

Probably the main difficulty with .reg files is inability to distribute them via e-mail etc. as they typically get blocked by AV.