Installation error windows 8.1

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DragonMind Posts 2 Registration date Saturday April 5, 2014 Status Member Last seen April 5, 2014 - Apr 5, 2014 at 12:36 AM
I had windows 7 ultimate installed on my dell laptop and wanted to change to windows 8.1 but when i insert the cd of windows 8.1 theres a windows 8 logo screen and after sum time it shows a recovery blue screen with error code 0xc0000185 need some help plz