Error dotnet v2.0.50727 - Hoffman

ENs apareixia a l'iniciar el Hoffman l'error: "o run this application, you
first uninstall one of the following versions of net framework v2.0.50727"
El que hem fet despres de llegir alguns posts és reinstal·lar el Dotnet
2.0:
Per fer-ho he desinstal·lat tots els dot nets i ha baixat i instal·lat altra vagada tots els dotnet:
http://support.microsoft.com/KB/906894
http://www.microsoft.com/downloads/details.aspx?familyid=79BC3B77-E02C-4AD3-AACF-A7633F706BA5&displaylang=en
http://www.microsoft.com/downloads/details.aspx?displaylang=es&FamilyID=79bc3b77-e02c-4ad3-aacf-a7633f706ba5
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=333325fd-ae52-4e35-b531-508d977d32a6
http://www.microsoft.com/downloads/details.aspx?familyid=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=es
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=10cc340b-f857-4a14-83f5-25634c3bf043
http://www.microsoft.com/downloads/details.aspx?familyid=10CC340B-F857-4A14-83F5-25634C3BF043&displaylang=es
http://www.microsoft.com/downloads/details.aspx?familyid=A8F5654F-088E-40B2-BBDB-A83353618B38&displaylang=es