Error Scheduled Tasks en SBS2003

Vaig trobar un post amb la sol·lució per tasques programades que fallaven, com la còpia de seguretat del Windows SBS2003.

Solution is to delete the following corrupt file "C:\Documents and
Settings\All Users\Application
Data\Microsoft\Crypto\RSA\S-1-5-18\d42cc0c3858a58db2db37658219e6400_xxxx"
(xxxx means a string)

Once I did this, I also had to recreate all of my scheduled tasks.