I'm running Office 2007 under Windows 7 (64-bit) on a new Dell computer.
Everything worked fine for three month. Suddenly I received an error when I
started an Office application: "The application is not installed for thze
actual user. Start set-up". When I start set-up the procedure is finished by
error 1402 "The registry key ... cannot be opened by set-up."

I tried to deinstall Office and got the same error key.

I am working under an administartor profile. And I have full access rights
of file Opa12.dat.

Does anybody knows what to do ?
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Best regards,
-Helmut-