I recently downloaded the trial version of rollback rx before purchasing the same. Im having windows 7 64bit SP1 with all up to date updates installed, 8gigs RAM. When I installed rollback and restarted the computer I was unable to run the software and it gave me error "Initprotectsysdata Failed". What could be the issue, is it 64 bit issue. What all info I can provide you all with which you can help in narrowing down the issue.