Dear redseujac
Thank you very much for your last suggestions.
I downloaded the last version and it installed and run without problem.
As I told before the RegCleaner showed a lot of bad high entries and on the column "Entry Last Modified" there was no date but the note "NA"and the entries reappear after telling RegCleaner to remove them.
I tried to delete those entries using Regedit but got an "access denied"
I believe they are entries related with programs I uninstalled (mainly with Musicmatch) and the only solution was to let them there and tell RegCleaner to "do not show them again".
Then I clicked remove all the other entries detected and "Alleluia!" it worked. :
Now I know that I have some entries on the registry that are bad but can do nothing. It sure happened when I was forced to use drastic solutions to uninstall Musicmatch because the program developed an error, don't allow me to uninstall normally and even when I tried to delete the files and the directory of the installation I always got the message "access denied"
I browse the net with Google trying to find a solution to get rid of Musicmatch but none of found worked.
I spent quite a day fighting with the computer and finally get rid of the files and directory but.... as I can see now the entries remain on the registry :
I used Musicmatch for years and I liked it but.... now it seems they have tried to implement a lot of new features.... and failed. I can survive without it :
I use AVG pro and they already answered me that the detection of PT 2005 as a virus is a "false positive" that will be corrected on next update.
Final conclusion:
PT continues to be the best program to deal with registry;
Your suggestion was a very good hint;
Using the Forum have been a good experience to me! :
Best regards