Hello, I tried to install SAS 9.4 on my win 7 64 bit sp1 system. During the installation, the error 50178 occurred several times (It said I only have win 7 professional 64 bit and I need win 7 64-bit service pack 1. However I already have the service pack 1 system ). The update for win 7 professional 64 bit sp 1 is from Microsoft official website. What should I do now? Thanks a lot.
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