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Windows Update error code 646

3K views 0 replies 1 participant last post by  pacmann 
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Since mid October I've been having problems installing windows updates. I always get an error message with a code 646. The failed update is security for microsoft works 8. I've tried some solutions listed in older posts such as the notepad and command prompt, that didn't work. I went to microsoft's website to dowload the update directly from there and that didn't work... what else could I try???
 
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