Problem with pdfcrop on Windows 10

I've been using pdfcrop from time to time without problems. But I've 
recently moved to
a windows 10 machine and now I get an error when pdfcrop is called:

The error shown is:

C:\...\ExperimentsLaTeX>pdfcrop
Can't use an undefined value as an ARRAY reference at 
C:/Perl64/lib/Win32/TieRegistry.pm line 718.

Response to command "pdfcrop --version" says: pdfcrop 2012/11/02 v1.38

And "perl --version" shows:

------
C:\...\ExperimentsLaTeX>perl --version

This is perl 5, version 20, subversion 1 (v5.20.1) built for 
MSWin32-x64-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2014, Larry Wall

Binary build 2000 [298557] provided by ActiveState 
http://www.ActiveState.com
Built Oct 15 2014 14:56:57
-------

Do you know what's wrong in my systems?

Thank you,

Ignasi

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