Posted June 19, 201410 yr I have installed windows 8 through a DVD but i am not able to update to windows 8.1 there is no option in store i have installed each and every update present in windows update now it says that your PC is up to date...... I think so that I installed it using multiple product keys please guide me :( :: I also tried to install windows 8.1 through an ISO file but during installation it says unable to install windows 8.1 :( Continue reading...
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